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Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our consolidated financial statements and related notes thereto included elsewhere in this Annual Report on Form 10-K. This discussion contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those discussed below. Factors that could cause or contribute to such differences include those identified below and those discussed in the section titled “Risk Factors” included elsewhere in this Annual Report on Form 10-K.

We provide clean, solar energy and energy storage to customers. We have been selling solar energy to residential customers through a variety of offerings since we were founded in 2007. We, either directly or through one of our energy system partners, install an energy system on a customer’s home and either sell the system to the customer or, as is more often the case, sell the energy generated by the system to the customer pursuant to a lease or PPA with no or low upfront costs. Certain of these energy systems under lease or PPA agreements have been sold and may in the future be sold to third-party investors.For these non-retained agreements we may continue to maintain the customer experience and servicing relationships. We refer to these leases and PPAs as “Customer Agreements.” Following installation, an energy system is interconnected to the local utility grid. The home’s energy usage is provided by the energy system, with any additional energy needs provided by the local utility. Any excess solar energy, including amounts in excess of battery storage, that is not immediately used by the customers is exported to the utility grid using a bi-directional utility net meter, and the customer generally receives a credit for the excess energy from their utility to offset future usage of utility-generated energy.

We offer our solar service offerings both directly to the customer and through our energy system partners, which include sales and installation partners, and strategic partners, which include retail partners. In addition, we sell energy systems directly to customers for cash. We also sell solar energy panels and other products (such as racking) to resellers. As of December 31, 2025, we provided our solar services to customers and sold solar energy panels and other products to resellers throughout the United States. More than 45% of our cumulative systems deployed are in California.

We compete mainly with traditional utilities. In the markets we serve, our strategy is to price the energy we sell below prevailing local retail electricity rates. As a result, the price our customers pay under our solar service offerings varies depending on the state where the customer lives, the local traditional utility that otherwise provides electricity to the customer, as well as the prices other solar energy companies charge in that region. Even within the same neighborhood, site-specific characteristics drive meaningful variability in the revenue and cost profiles of each home. Using our proprietary technology, we target homes with advantageous revenue and cost characteristics, which means we are often able to offer pricing that allows customers to save more on their energy bill while maintaining our ability to meet our targeted returns. For example, with the insights provided by our technology, we can offer competitive pricing to customers with homes that have favorable characteristics, such as roofs that allow for easy installation, high electricity consumption, or low shading, effectively passing through the cost savings we are able to achieve on these installations to the customer.

Our ability to offer Customer Agreements depends in part on our ability to finance the purchase and installation of the energy systems by monetizing the resulting customer cash flows and related Commercial ITCs, accelerated tax depreciation and other incentives from governments and local utilities. We monetize these incentives under tax equity investment funds, which are generally structured as non-recourse project financings, as well as through the sale of certain energy systems under newly originated Customer Agreements to third-party investors. Since inception we have raised numerous tax equity investment funds to finance the installation of energy systems. From time to time, we may repurchase investors' interests in our tax equity investment funds after the recapture period of the relevant tax incentives. We intend to establish additional investment funds and may also use debt, equity and other financing strategies to fund our growth.

In addition, completing the sale and installation of an energy system requires many different steps including a site audit, completion of designs, permitting, installation, electrical sign-off and interconnection. Customers may cancel their Customer Agreements with us, subject to certain conditions, during this process until commencement of installation. Customer cancellation rates can change over time and vary between markets.

Market & Macroeconomic Environment

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Our business and financial performance also depend on worldwide economic and geopolitical conditions. We face global macroeconomic challenges, particularly in light of volatility in interest rates, uncertainty in markets, inflationary trends, navigating complex and evolving regulatory and tax frameworks, and the dynamics of the global trade environment, including the imposition of tariffs. Federal tax policies and regulations, as well as state regulatory frameworks, also affect our business and financial performance.

During the twelve months ended December 31, 2025, we observed market uncertainty, including as a result of ongoing announcements related to tariffs, inflationary pressures, elevated interest rates, the market impacts of proposed or newly enacted regulatory frameworks in markets within which we do business and within our industry and supply constraints. In particular, elevated interest rates, including historic increases starting in 2021, have resulted and may continue to result in a decrease in our advance rates, reducing the proceeds we receive from certain Funds. Because our financing structure is sensitive to volatility in interest rates, higher rates increase our cost of capital and may decrease the amount of capital available to us to finance the deployment of new energy systems. These market dynamics, some of which we expect will continue into the foreseeable future, despite a recent reduction in federal interest rates, have impacted and may continue to impact our business and financial results.

Additionally, our operations and supply chains are subject to risks related to uncertainties in trade regulations and policies, including changes in tariffs, duties, trade barriers, and other restrictions imposed by both domestic and international governments. These trade policy uncertainties may increase our costs, disrupt our supply chain, limit our ability to operate in certain markets, or require us to modify our current business practices. Changes in trade agreements, import/export regulations, and retaliatory measures between countries could further impact the availability and cost of materials necessary for our products and services. While the Company is not a direct importer of modules and batteries, many of the Company's suppliers import products and components from jurisdictions such as China and Vietnam that are subject to recently announced tariffs, which could significantly increase component expenses for key products, such as lithium-ion battery cells used in our energy storage systems that are currently sourced primarily from China. Despite our efforts to identify qualified suppliers outside of China, these tariffs and potential future trade restrictions could adversely impact our supply chain costs, the pricing of our products and, consequently, negatively affect consumer demand for our products.

At the federal level, tax policy and associated regulations have a direct impact on our business. The most notable recent tax legislation affecting our business is the OBBB that President Trump signed into law on July 4, 2025. The new law adjusts tax policies that Sunrun relies upon, including the 48E Clean Electricity Investment Credit and its associated “bonus” credits. While the law maintains the full 48E credit for energy storage through 2033, it shortens the availability of the 48E credit for solar facilities to the end of 2027. The law also applies new PFE restrictions to the 48E credit, which could potentially deny tax credits to entities owned, controlled, or influenced by certain specified foreign entities, and for projects that use certain components or receive “material assistance” from a PFE, thereby potentially increasing costs, reducing demand, or restricting access to tax credits. Further, the law ended the Section 25D Residential Clean Energy Credit starting on January 1, 2026. Changes in the law relating to the Section 45X Advanced Manufacturing Production Credit could also affect Sunrun indirectly, through our suppliers. The implementation of the OBBB through the federal regulatory process could also directly affect our business, including from uncertainty prior to the issuance of guidance or formal rulemaking processes, which may result in delays for monetizing tax credits. For further information regarding possible impacts of the OBBB on our business, see Part II, Item 1A. Risk Factors—"Risks Related to Regulation and Policy—Federal tax policy impacts the competitiveness of our service offerings to customers and our market” and “Risks Related to Taxes and Accounting—Our ability to provide our storage and solar service offerings to customers on an economically viable basis depends in part on our ability to finance these systems with fund investors who seek particular tax and other benefits” and “—Our business depends in part on the availability of utility rebates, tax credits and other benefits, tax exemptions and exclusions, and other financial incentives on the federal, state, and/or local levels. We may be adversely affected by changes in, and application of, these laws or other incentives to us, and the expiration, elimination or reduction of these benefits could adversely impact our business.”

State legislative and regulatory frameworks also have a direct impact on our business. For example, on April 15, 2023, California implemented changes to its net metering policy by adopting a net billing tariff (“NBT”), which presented a significant change to the rate structure for new California customers, and has partially limited the financial attractiveness of our offerings in certain regions of the state, particularly for solar-only systems.However, under this new policy, the value proposition of storage offerings is significantly enhanced in California. We believe that California will be predominantly a solar plus storage market going forward and the vast majority of California sales now consist of our backup battery offerings.As the demand for solar plus storage offerings grows, we anticipate facing additional operational challenges associated with the complexity of deploying storage solutions. For example, solar plus storage offerings tend to have longer cycle times due to factors such as lengthened

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permitting and inspection times and potential need of a main panel upgrade. Any such factors that extend the timeframes from customer signature to installation have historically resulted in increased operational challenges and correspondingly lower realization rates, and any future instances may continue to do so. Accordingly, this may adversely affect our financial performance, as well as the timing and magnitude of our installations and the recognition of the associated revenue.

Under the new California NBT framework, the value proposition of our products is best understood when customers compare the combined costs of their utility bill along with their Sunrun solar and storage bill, due to the impact of time-of-use rates and export rates. We believe the best customer offering is one that pairs solar and storage, although it may be more confusing to customers when compared to solar-only offers from competitors. This dynamic may result in less sales efficacy so long as customers continue to be presented with inferior, but simpler, solar-only offerings and as a result, may harm our business, financial condition, and results of operations, and may also harm the reputation of the solar industry in California at large.

Since implementation of NBT, originations in California have continued to be below levels prior to the transition for us and across the residential solar industry. Without further increases in originations, our new installations in California may continue to decline compared to prior periods, which could have a material adverse effect on our business operations and financial performance.

We have also recently seen new market entrants paying significantly higher turnkey prices and sales commissions than prevailing industry norms. Although we believe this to be an economically unsustainable practice, in the short term, it has contributed to increased competition in the industry.

The Need for Fast-Built Dispatchable Power and Home Electrification

The United States is currently experiencing a transformation of our energy system due to a dramatic increase in demand for electricity from data centers, artificial intelligence, and manufacturing, as well as the opportunities of electrification of the American economy with clean energy. We anticipated this critical need for more dispatchable electrons on the grid and assisting grid operators with on-demand, home-to-grid energy to help meet demand. Meeting America’s energy needs to power the economy requires adding more dispatchable capacity to the grid.

We intend to pursue these opportunities on a variety of fronts, and we continue to pursue the development of our grid services business, creating distributed power plants that we believe will lead to a more affordable and more resilient grid. Sunrun’s evolution to become a storage-first company has put us in the position of being the largest home-to-grid power plant owner and operator in the country—becoming a key dispatchable energy resource for the grid. In collaboration with grid managers, we can deploy our battery systems where they will add the most value for utilities, the grid, and customers. We are actively delivering demand response and capacity services to meet operational needs in multiple geographies, and partnering with grid managers to build a more resilient electricity system that integrates the new energy technologies that we believe our customers want.

We believe the electrification of U.S. households with renewable energy, and the accompanying development of an inter-connected, smart grid will provide a number of market opportunities beyond our traditional solar and battery storage offerings, including EV chargers, battery retrofits, re-powered or expanding systems, home energy management services, and other home electrification products. Additionally, we believe our omni-channel model and geographic reach provides us with the capabilities to execute on these opportunities in a variety of markets.

To further expand such future upsell and retrofit opportunities, from time to time, we may pursue acquisitions of previously installed solar systems. While we do not expect such acquisitions to represent a significant portion of our growth on an annual basis, we plan to pursue such transactions opportunistically. For instance, in the third quarter of fiscal 2021, we completed a strategic transaction that added approximately 2,000 Customers and 13 MW of Networked Solar Energy Capacity.

In sum, we believe the electrification of the U.S. economy backed by solar and battery storage presents an unprecedented economic opportunity. Through these electrification opportunities and our grid services business, we aim to be the consumer brand synonymous with repowering our customers’ homes with affordable, resilient energy and providing a pathway to a cleaner, healthier future.

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U.S. Energy Policy in a Period of Transition

The federal policy landscape in 2025 has created a dynamic environment that may impact our business and financial results, including via changes to federal tax credits, tariffs, and other regulatory measures. The recent changes to ITCs under the OBBB, or Executive Orders issued by the President of the United States, as well as any other elimination, reduction or delay in policies that support the residential storage and solar industry, could have an adverse effect on our business. For further information regarding certain of the impacts of the OBBB on our business, see Part II, Item 1A. Risk Factors—"Risks Related to Regulation and Policy—Federal tax policy impacts the competitiveness of our service offerings to customers and our market” and “Risks Related to Taxes and Accounting—Our ability to provide our storage and solar service offerings to customers on an economically viable basis depends in part on our ability to finance these systems with fund investors who seek particular tax and other benefits” and “—Our business depends in part on the availability of utility rebates, tax credits and other benefits, tax exemptions and exclusions, and other financial incentives on the federal, state, and/or local levels. We may be adversely affected by changes in, and application of, these laws or other incentives to us, and the expiration, elimination or reduction of these benefits could adversely impact our business.” Additionally, these and other regulatory policies set forth in the United States’ government could contribute to a higher interest rate environment, which may further negatively impact our operations and financing costs. While it is difficult to predict specific outcomes at this time, we expect a period of regulatory and policy uncertainty and change in the near term. However, we believe our diversified business model and flexible operational framework position us to adapt to potential adverse changes in the regulatory landscape and to continue building on the robust bipartisan support for residential solar policy.

Investors

Our Customer Agreements provide for recurring customer payments, typically over 20 or 25 years, and the related energy systems are generally eligible for ITCs, accelerated tax depreciation and other government or utility incentives. Our financing strategy is to monetize these benefits at a low weighted average cost of capital. This low cost of capital enables us to offer attractive pricing to our customers for the energy generated by the energy system on their homes. Historically, we have monetized a portion of the value created by our Customer Agreements and the related energy systems through Funds, as defined below. Additionally, we sell certain energy systems under newly originated Customer Agreements to third-party investors. These assets are attractive to investors due to the long-term, recurring nature of the cash flows generated by our Customer Agreements, the high credit scores of our customers, the fact that energy is a non-discretionary good and our low loss rates. In addition, investors can receive attractive after-tax returns due to their ability to utilize ITCs, accelerated depreciation and certain government or utility incentives associated with the ownership of energy systems.

Funds

As of December 31, 2025, we had 59 active Funds, which are described below. We have established different types of Funds to implement our asset monetization strategy. Depending on the nature of the Fund, cash may be contributed to the investment Fund by the investor upfront or in stages based on milestones associated with the design, construction or interconnection status of the energy systems. The cash contributed by the Fund investor is used by the Fund to purchase energy systems. The Funds own a Sunrun subsidiary for the energy systems, Customer Agreements and associated incentives. We receive on-going cash distributions from the Funds representing a portion of the monthly customer payments received. We use the upfront cash, as well as on-going distributions to cover our costs associated with designing, purchasing and installing the energy systems. In addition, we also use debt, equity and other financing strategies to fund our operations. The allocation of the economic benefits between us and the Fund investor and the corresponding accounting treatment varies depending on the structure of the Fund.

We currently utilize the partnership flip structure for our Funds. Historically, we also utilized pass-through financing obligations as a legal structure for our Funds. In Q4 2024, we retired our last pass-through financing obligation Fund. We record the investor’s interest in partnership flips as noncontrolling interests or redeemable noncontrolling interests. These partnership flips are usually redeemable at our option and, in certain cases, at the investor’s option. If redemption is at our option, we record the investor’s interest as a noncontrolling interest and account for the interest using the hypothetical liquidation at book value (“HLBV”) method. If the investor has the option to put their interest to us, we record the investor’s interest as a redeemable noncontrolling interest at the greater of the HLBV and the redemption value.

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For further information regarding our Funds, including the associated risks, see Item 1A. Risk Factors—"Our ability to provide our solar service offerings to customers on an economically viable basis depends in part on our ability to finance these systems with fund investors who seek particular tax and other benefits.", Note 12, VIE Arrangements and Note 13, Redeemable Noncontrolling Interests to our consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.

Under partnership flip structures, we and our fund investors contribute cash into a partnership entity. The partnership uses the cash to acquire energy systems developed by us with signed Customer Agreements. Each fund investor receives a rate of return, typically on an after-tax basis, which varies by investment fund. Prior to the fund investor receiving its contractual rate of return or for a time period specified in the contractual arrangements, the fund investor receives a significant portion of the value attributable to customer payments, a majority of the accelerated tax depreciation and substantially all of the Commercial ITCs. After the fund investor receives its contractual rate of return or after the specified time period, we receive substantially all of the value attributable to the remaining customer payments and SREC sales.

Under our partnership flip structures, we have determined that we control the partnership entity which is a variable interest entity (“VIE”), and accordingly we consolidate the entity and record the investor’s interest as either noncontrolling interests or redeemable noncontrolling interests in our consolidated balance sheets.

For all of our partnership flips, the redeemable noncontrolling interest is carried on our balance sheet at the greater of the redemption value or the amount calculated under the HLBV method. The HLBV method estimates the amount that, if the fund’s assets were hypothetically sold at their book value, the investor would be entitled to receive according to the liquidation waterfall in the partnership agreement. As of December 31, 2025, the noncontrolling interest balance (redeemable or otherwise) for these Funds was $1.9 billion.

Key Operating Metrics

The following operating metrics are used by management to evaluate the performance of the business. Management believes these metrics provide investors with helpful information to determine the economic performance of the business activities in a period that would otherwise not be observable from historic GAAP measures. We regularly review a number of metrics, including the following key operating metrics, to evaluate our business, measure our performance, identify trends affecting our business, formulate financial projections and make strategic decisions. Some of our key operating metrics are estimates that are based on our management’s beliefs and assumptions and on information currently available to management. Although we believe that we have a reasonable basis for each of these estimates, we caution you that these estimates are based on a combination of assumptions that may prove to be inaccurate over time. Any inaccuracies could be material to our actual results when compared to our calculations. Please see the section titled “Risk Factors” in this Annual Report on Form 10-K for more information. Furthermore, other companies may calculate these metrics differently than we do now or in the future, which would reduce their usefulness as a comparative measure.

•Deployments represent solar or storage systems, whether sold directly to customers or subject to executed Customer Agreements (i) for which we have confirmation that the systems are installed, subject to final inspection, or (ii) in the case of certain system installations by our partners, for which we have accrued at least 80% of the expected project cost (inclusive of acquisitions of installed systems). A portion of customers have subsequently entered into Customer Agreements to obtain, or have directly purchased, additional solar or storage systems at the same host customer site, and since these represent separate assets, they are considered separate Deployments.

•Retained Subscribers represent customers subject to Customer Agreements for solar and/or storage systems that have been recognized as Deployments and recognized as energy systems on Sunrun’s consolidated balance sheet, whether or not they continue to be active.

•Non-Retained or Partially Retained Subscribers represent customers subject to Customer Agreements for solar and/or storage systems that have been recognized as Deployments whereby the assets have been fully or partially sold to one or more investors and not presented as an energy system on Sunrun’s consolidated balance sheet.

•Subscribers represent aggregate Retained Subscribers and Non-Retained or Partially Retained Subscribers.

•Purchase Customers represent customers who purchased, whether outright or with proceeds from third-party loans, solar and/or storage systems that have been recognized as Deployments.

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•Customers represent aggregate Subscribers and Purchase Customers. We believe that it is helpful to investors to evaluate customers added during the period in order to measure the growth of our business as a whole.

•Solar Capacity Installed represents the aggregate megawatt production capacity of solar energy systems that were recognized as Deployments in a period.

•Networked Solar Capacity represents the cumulative Solar Capacity Installed from the Company’s inception through the measurement date. We believe it is helpful to investors to evaluate networked solar energy capacity added during the period in order to measure the growth of our business as a whole, whether sold directly to customers or subject to executed Customer Agreements.

•Subscriber Additions represent the number of Subscribers added in a period. We believe this metric is helpful to investors to track the additions to our customers under long-term Customer Agreements from our activities in the period.

•Contracted Subscriber Value represents the per Subscriber present value of estimated upfront and future Contracted Cash Flows from Subscriber Additions in a period, discounted at the observed cost of capital in the period.

•Aggregate Contracted Subscriber Value represents Contracted Subscriber Value multiplied by Subscriber Additions.

•Contracted Cash Flows represent, (A) for Retained Subscribers, (x) (1) scheduled payments from Subscribers during the initial terms of the Customer Agreements (provided, that for Flex Customer Agreements that allow variable billings based on the amount of electricity consumed by the Subscriber, only the minimum contracted payment is included in Contracted Cash Flows), (2) net proceeds from tax equity partners, (3) payments from government and utility incentive and rebate programs, (4) contracted net cash flows from grid services programs with utilities or grid operators, and (5) contracted or defined (i.e., with fixed pricing) cash flows from the sale of renewable energy credits, less (y) (1) estimated operating and maintenance costs to service the systems and replace equipment over the initial terms of the Customer Agreements, consistent with estimates by independent engineers, (2) distributions to tax equity partners in consolidated joint venture partnership flip structures, and (3) distributions to any project equity investors, and (B) for Non-Retained or Partially Retained Subscribers, (x) contracted proceeds from the full or partial sale of related assets, plus (y) the share of Contracted Cash Flows described in clause (A) of this definition which are allocated to Sunrun pursuant to the terms of each sale agreement or partnership agreement.

•Non-contracted or Upside Cash Flows represent (A) for Retained Subscribers the (1) net cash flows realized from either the purchase of systems at the end of the Customer Agreement initial terms or renewals of Customer Agreements beyond the initial terms, estimated in both cases to have equivalent value, assuming only a 30-year relationship and a contract renewal rate equal to 90% of each Subscriber’s contractual rate in effect at the end of the initial contract term, (2) non-contracted net cash flows from grid service programs with utilities and grid operators, (3) non-contracted net cash flows from the sale of renewable energy credits, and (4) contracted cash flows from Flex Customer Agreements exceeding the minimum contracted payment (provided, that for Flex Customer Agreements that allow variable billings based on the amount of electricity consumed by the Subscriber, an assumption is made that each Subscriber’s electricity consumption increases by approximately 2% per year through the end of the initial term of the Customer Agreement and into the renewal period (if renewed), resulting in billings in excess of the minimum contracted amount (which minimums are included in Contracted Cash Flows)), and (B) for Non-Retained or Partially Retained Subscribers, the share of Non-contracted or Upside Cash Flows described in clause (A) of this definition which are allocated to Sunrun pursuant to the terms of each sale agreement or partnership agreement. After the initial contract term, our Customer Agreements typically automatically renew on an annual basis and the rate is initially set at up to a 10% discount to then-prevailing utility power prices.

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•Gross Earning Assets is calculated as Contracted Gross Earning Assets plus Non-contracted or Upside Gross Earning Assets. Gross Earning Assets is forecasted as of a specific date. It is forward-looking, and we use judgment in developing the assumptions used to calculate it. Factors that could impact Gross Earning Assets include, but are not limited to, customer payment defaults, or declines in utility rates or early termination of a contract in certain circumstances, including prior to installation. We believe it is useful for investors to evaluate the future expected cash flows from all customers that have been deployed through the respective measurement date, less estimated costs to maintain such systems and estimated distributions to tax equity partners in partnership flip structures, and distributions to project equity investors. Various assumptions are made when calculating these metrics. Gross Earning Assets utilize a 6% unlevered discount rate to discount future cash flows to the present period. Furthermore, this metric assumes that customers renew after the initial contract period at a rate equal to 90% of the rate in effect at the end of the initial contract term. In all instances, we assume a 30-year customer relationship, although the customer may renew for additional years, or purchase the system. For instance, Customer Agreements with 25-year initial contract terms, a 5-year renewal period is assumed. For a 20-year initial contract term, a 10-year renewal period is assumed. Estimated cost of servicing assets has been deducted and is estimated based on the service agreements underlying each fund.

•Contracted Gross Earning Assets represents, as of any measurement date, the present value of estimated remaining Contracted Cash Flows that we expect to receive in future periods in relation to Subscribers as of the measurement date, discounted at 6%.

•Non-contracted or Upside Gross Earning Assets represents, as of any measurement date, the present value of estimated Non-contracted or Upside Cash Flows that we expect to receive in future periods in relation to Subscribers as of the measurement date, discounted at 6%. Preceding fiscal year 2025, this key operating metric was previously disclosed as “Gross Earning Assets Renewal Period,” and was calculated in the same manner except that since the beginning of fiscal year 2025 we have (i) included the expected impact of our Flex product offering, which in prior periods had been an immaterial part of our business, and (ii) modified the title of the metric to Non-contracted or Upside Gross Earnings Assets.

Three months ended December 31,

Contracted Subscriber Value (per Subscriber) $ 47,988 $ 48,273

Aggregate Contracted Subscriber Value (in thousands) $ 1,222,500 $ 1,482,413

As of December 31,

Networked Solar Capacity (megawatts) 8,404 7,531

As of December 31,

(in thousands)

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The tables below provide a range of Gross Earning Asset amounts if different default, discount and purchase and renewal assumptions were used.

Contracted Gross Earning Assets:

Discount rate

Annualized Net Default Rate 4% 5% 6% 7% 8%

(in thousands)

Non-contracted or Upside Gross Earning Assets:

Discount rate

Purchase or Renewal rate 4% 5% 6% 7% 8%

(in thousands)

Total Gross Earning Assets:

Discount rate

Purchase or Renewal rate 4% 5% 6% 7% 8%

(in thousands)

Critical Accounting Policies and Estimates

Our discussion and analysis of our financial condition and results of operations are based upon our financial statements, which have been prepared in accordance with generally accepted accounting principles in the United States ("GAAP"). GAAP requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, expenses and related disclosures. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances. In many instances, we could have reasonably used different accounting estimates, and in other instances, changes in the accounting estimates are reasonably likely to occur from period-to-period. Actual results could differ significantly from our estimates. Our future financial statements will be affected to the extent that our actual results materially differ from these estimates. For further information on all of our significant accounting policies, see Note 2, Summary of Significant Accounting Policies, to our consolidated financial statements included elsewhere in this Annual Report on Form 10-K.

We believe that policies associated with our principles of consolidation, revenue recognition, impairment of long-lived assets, provision for income taxes, business combinations and calculation of noncontrolling interests and redeemable noncontrolling interests have the greatest impact on our consolidated financial statements. Therefore, we consider these to be our critical accounting policies and estimates.

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Principles of Consolidation

Our consolidated financial statements include our accounts and those of our subsidiaries in which we have a controlling financial interest. The typical condition for a controlling financial interest is holding a majority of the voting interests of an entity. However, a controlling financial interest may also exist in entities, such as VIEs, through arrangements that do not involve controlling financial interests. We consolidate any VIE of which we are the primary beneficiary, which is defined as the party that has (1) the power to direct the activities of a VIE that most significantly impact the VIE’s economic performance and (2) the obligation to absorb losses or receive benefits of the VIE that could potentially be significant to the VIE. We evaluate our relationships with our VIEs on an ongoing basis to determine whether we continue to be the primary beneficiary. Our financial statements reflect the assets and liabilities of VIEs that we consolidate. All intercompany transactions and balances have been eliminated in consolidation. For further information regarding consolidation of our investment funds, see “—Investment Funds” above.

Revenue Recognition

We recognize revenue when control of goods or services is transferred to customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services.

Customer Agreements and Incentives Revenue. Customer agreements and incentives revenue is primarily comprised of revenue from our Customer Agreements and sales of solar renewable energy credits (“SRECs”) to third parties.

We begin to recognize revenue from a Customer Agreement when PTO for the applicable energy system is given by the local utility company or on the date daily operation commences if utility approval is not required. For Customer Agreements that include a fixed fee per month which entitles the customer to any and all electricity generated by the system, we recognize revenue evenly over the time that we satisfy our performance obligations over the initial term of Customer Agreements. After the initial contract term, our Customer Agreements typically automatically renew annually or for a five year term.

We also apply for and receive SRECs associated with the energy generated by our energy systems and sell them to third parties in certain jurisdictions. SREC revenue is estimated net of any variable consideration related to possible liquidated damages if we were to deliver fewer SRECs than contractually committed, and is generally recognized upon delivery of the SRECs to the counterparty.

Certain upfront payments related to Customer Agreements and SRECs are deemed to have a financing component, and therefore increase both revenue and interest expense by the same amount over the term of the related agreement. The additional revenue is included in the total transaction price to be recorded over the term of the agreement and is recognized based on the timing of the delivery. The interest expense is recognized based upon an amortization schedule which typically decreases throughout the term of the related agreement.

Consideration from customers is considered variable due to the performance guarantee under Customer Agreements and liquidated damage provisions under SREC contracts in the event minimum deliveries are not achieved. Customer Agreements with a performance guarantee provide a credit to the customer if the system's cumulative production, as measured on various PTO anniversary dates, is below our guarantee of a specified minimum. Revenue is recognized to the extent it is probable that a significant reversal of such revenue will not occur. If our estimate of the future production shortfall amount for Customer Agreements with a performance guarantee was 10% higher, the additional reduction to revenue in the twelve months ended December 31, 2025 would have been less than $5.0 million. Our estimated production shortfall reduced revenue during the twelve months ended December 31, 2025 by less than $10.2 million compared to the prior year's period. We have historically estimated an immaterial amount of liquidated damages pursuant to SREC contracts, and actual damages have not been materially different from estimates, nor material in amount during the years ended December 31, 2025, 2024 and 2023.

Energy Systems and Product Sales. Energy systems sales are revenue from the sale of energy systems directly to customers or third-party investors. We generally recognize revenue from energy systems sold to customers when the energy system passes inspection by the authority having jurisdiction, which inspection generally occurs after installation but prior to PTO, at which time we have met the performance obligation in the contract. For energy system sales that include delivery obligations up until interconnection to the local power grid with permission to operate, we recognize revenue at PTO. For sale of energy systems subject to newly originated

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Customer Agreements to third-party investors, we recognize revenue over time as performance obligations are satisfied, based on the achievement of milestones. Certain energy systems sold to customers include fees for extended warranty and maintenance services. These fees are recognized over the life of the service agreement.

Product sales revenue consists of revenue from the sale of solar panels, inverters, racking systems, roof repair, and other solar energy products sold to resellers, as well as the sale of customer leads to third parties, including our partners and other solar providers. Product sales revenue is recognized when control is transferred, generally upon shipment, or as services are delivered. Customer lead revenue is recognized at the time the lead is delivered.

Goodwill

Goodwill represents the excess of the purchase price over the fair value of assets acquired and liabilities assumed. Goodwill is reviewed for impairment at least annually as of October 1st or whenever events or changes in circumstances indicate that the carrying value may be impaired. We have determined that we operate as one reporting unit and our goodwill is tested for impairment at the enterprise level. When assessing goodwill for impairment, we use qualitative and if necessary, quantitative methods in accordance with FASB ASC Topic 350, Goodwill.

Circumstances or events that could indicate impairment and require us to perform a quantitative impairment test include a significant decline in our financial results, a significant decline in our enterprise value relative to our net book value, a sustained decline in our stock price, or an unanticipated change in competition affecting our market share and a significant change in our strategic plans or regulatory environment. A sustained decrease in the price of our common stock is one of the qualitative factors to be considered as part of an impairment test when evaluating whether events or changes in circumstances may indicate that it is more likely than not that a potential goodwill impairment exists.

In November 2024, consistent with industry peers, our stock price declined resulting in a significant decline in our market capitalization below the book value of equity. This indicator triggered an interim quantitative assessment as of December 31, 2024. Per ASC 350-20-35-22 “quoted market prices in active markets are the best evidence of fair value and shall be used as the basis for the measurement, if available.” We estimated the fair value of our reporting unit primarily based on consideration of an income approach and market capitalization. Under the income approach, our future cash flows were estimated and present valued based on a discount rate reflecting a market participant risk-adjusted rate of return. The assumptions and estimates used in the assessment include, among others, estimated future net annual contracted cash flows under our existing long term customer agreements, as well as future growth estimates. We also compared the total invested capital (including market capitalization) to the fair value of our reporting unit to assess the reasonableness of fair value. As of December 31, 2024, we concluded that the fair value of our one reporting unit did not exceed its carrying value primarily driven by our market capitalization and recorded an impairment charge of $3.1 billion in our consolidated statements of operations equal to the full value of the previously recorded goodwill.

We utilized varying discount rates depending on the risk associated and sensitivity with differing cash flow projections. Holding all other assumptions constant, a 50 basis point decrease in the discount rate assumptions or a 10% increase in our market capitalization as of December 31, 2024 would not change the goodwill impairment charge.

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Impairment of Long-Lived Assets

The carrying values of our long-lived assets, including energy systems, are periodically reviewed for impairment whenever events or changes in circumstances indicate that the carrying value of these assets may not be recoverable or that the useful life is shorter than originally estimated. Factors that we consider in deciding when to perform an impairment review would include significant negative industry or economic trends, and significant changes or planned changes in our use of the assets. Recoverability of these assets is measured by comparison of the carrying value of each asset group to the future undiscounted cash flows the asset is expected to generate over its remaining life. If the asset is considered to be impaired, the amount of any impairment is measured as the difference between the carrying value and the fair value of the impaired asset. If the useful life is shorter than originally estimated, we amortize the remaining carrying value over the new shorter useful life. During the years ended December 31, 2025, 2024 and 2023, there were no indicators of impairment and therefore no cash flow analysis was performed.

Provision for Income Taxes

We account for income taxes under an asset and liability approach. Deferred income taxes reflect the impact of temporary differences between assets and liabilities recognized for financial reporting purposes and the amounts recognized for income tax reporting purposes, net operating loss carryforwards and other tax credits measured by applying currently enacted tax laws. A valuation allowance is provided when necessary to reduce deferred tax assets to an amount that is more likely than not to be realized. We consider all available evidence, both positive and negative, including historical levels of income, estimates of future taxable income, reversing taxable temporary differences, and ongoing tax planning strategies in assessing the need for a valuation allowance. We recognize the effect of tax rate and law changes on deferred taxes in the reporting period in which the legislation is enacted.

We sell energy systems to investment funds. As the investment funds are consolidated by us, the gain on the sale of the energy systems is not recognized in the consolidated financial statements. However, this gain is recognized for tax reporting purposes. We account for the income tax consequences of these intra-entity transfers, both current and deferred, as a component of income tax expense and deferred tax liability, net during the period in which the transfers occur.

We account for investment tax credits as a reduction of income tax expense in the year in which the credits are recognized (i.e. the flow-through method). The Company enters into ITC transfer agreements with third-party transferees to transfer to such third-parties, for cash, the ITCs generated by certain energy systems that have been or will be placed in service. The Company accounts for its share of ITC transfer proceeds under ASC 740, Income Taxes, as a reduction of income tax expense in the consolidated statement of operations during the year in which the credits are recognized (i.e., the flow-through method) and the tax equity investor’s share is distributed upon receipt.

We determine whether a tax position is more likely than not to be sustained upon examination, including resolution of any related appeals or litigation processes, based on the technical merits of the position. We use a two-step approach to recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained upon tax authority examination, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement.

Our policy is to include interest and penalties related to unrecognized tax benefits, if any, within the provision for taxes in the consolidated statements of operations.

Business Combinations

We allocate the fair value of purchase price to the tangible assets acquired, liabilities assumed and intangible assets acquired based on their estimated fair values. Any residual purchase price is recorded as goodwill. The allocation of the purchase price requires management to make significant estimates in determining the fair values of assets acquired and liabilities assumed, especially with respect to the energy systems acquired as part of our acquisition of Vivint Solar in 2020.

Significant estimates in valuing certain tangible assets include but are not limited to discount rates. These estimates are inherently uncertain and unpredictable.

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Noncontrolling Interests and Redeemable Noncontrolling Interests

Our noncontrolling interests and redeemable noncontrolling interests represent fund investors’ interests in the net assets of certain investment funds, which we consolidate, that we have entered into in order to finance the costs of solar energy facilities under Customer Agreements. We have determined that the provisions in the contractual arrangements of the investment funds represent substantive profit-sharing arrangements, which gives rise to the noncontrolling interests and redeemable noncontrolling interests. We have further determined that for all but two of these arrangements, the appropriate methodology for attributing income and loss to the noncontrolling interests and redeemable noncontrolling interests each period is a balance sheet approach using the HLBV method.

Attributing income and loss to the noncontrolling interests and redeemable noncontrolling interests under the HLBV method requires the use of various inputs to calculate the amounts that fund investors would receive upon a hypothetical liquidation. Changes in these inputs, including change in tax rates, can have a significant impact on the amount that fund investors would receive upon a hypothetical liquidation.

We classify certain noncontrolling interests with redemption features that are not solely within our control outside of permanent equity on our consolidated balance sheets. Redeemable noncontrolling interests are reported using the greater of their carrying value at each reporting date as determined by the HLBV method or their estimated redemption value in each reporting period. Estimating the redemption value of the redeemable noncontrolling interests requires the use of significant assumptions and estimates such as projected future cash flows at the time the redemption feature can be exercised.

We determine the net income (loss) attributable to common stockholders by deducting from net loss, the net loss attributable to noncontrolling interests and redeemable noncontrolling interests in these funds. The net loss attributable to noncontrolling interests and redeemable noncontrolling interests represents the fund investors’ allocable share in the results of operations of these investment funds. For these funds, we have determined that the provisions in the contractual arrangements represent substantive profit-sharing arrangements, where the allocations to the partners sometimes differ from the stated ownership percentages. We have further determined that, for these arrangements, the appropriate methodology for attributing income and loss to the noncontrolling interests and redeemable noncontrolling interests each period is a balance sheet approach using the HLBV method. Under the HLBV method, the amounts of income and loss attributed to the noncontrolling interests and redeemable noncontrolling interests in the consolidated statements of operations reflect changes in the amounts the fund investors would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual provisions of these funds, assuming the net assets of the respective investment funds were liquidated at the carrying value determined in accordance with GAAP. The fund investors’ interest in the results of operations of these investment funds is initially determined by calculating the difference in the noncontrolling interests and redeemable noncontrolling interests’ claim under the HLBV method at the start and end of each reporting period, after taking into account any contributions and distributions between the fund and the fund investors and subject to the redemption provisions in certain funds.

The calculation of HLBV does not require estimates since each HLBV calculation is based upon the liquidation provisions of each fund’s contractual agreement. The calculation of the redeemable noncontrolling interest balance involves estimates such as a discount rate used in net present value calculations, and customer default rates. If the assumptions used for each of these were 10% higher, the impact to the aggregate redeemable noncontrolling interest balance as of December 31, 2025 would be a reduction of $21.6 million.

Results of Operations

The results of operations presented below should be reviewed in conjunction with the consolidated financial statements and notes thereto included elsewhere in this Annual Report on Form 10-K. Our Annual Report on Form 10-K for the year ended December 31, 2024 includes a discussion and analysis of our financial condition and results of operations for the year ended December 31, 2023 in Item 7 of Part II, “Management's Discussion and Analysis of Financial Condition and Results of Operations.”

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Year Ended December 31,

(in thousands, except per share amounts)

Revenue:

Operating expenses:

Net income (loss) attributable to common stockholders $ 449,947 $ (2,846,167)

Net income (loss) per share attributable to common stockholders

Comparison of the Years Ended December 31, 2025 and 2024

Revenue

Year Ended December 31, Change

(in thousands)

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Customer Agreements and Incentives. The $320.1 million increase in Revenue from Customer Agreements was primarily due to new systems placed in service in 2025 and a full year of revenue recognized in 2025 for systems placed in service in 2024 versus only a partial amount of such revenue related to the period in which the assets were in service in 2024. Revenue from incentives consisted primarily of sales of SRECs. The $6.3 million decrease when compared to the prior year related to the timing and volume of SREC sales, which were responsive to market conditions.

Energy Systems and Product Sales. Revenue from energy systems sales increased by $673.6 million compared to the prior year primarily due to a transaction that Sunrun entered into in the third quarter of 2025 whereby certain storage and energy systems subject to newly originated Customer Agreements are sold to a third-party investor; however, Sunrun continues to maintain the customer experience and servicing relationships and can sell future goods and services to these customers. Product sales decreased by $68.1 million compared to the prior year primarily due to the lower average sales price of solar energy products, as well as lower sales volume of solar energy products to installers of solar energy systems compared to the prior year, due to easing of supply chain constraints.

Year Ended December 31, Change

(in thousands)

Cost of Customer Agreements and Incentives. The $113.1 million increase in Cost of customer agreements and incentives was primarily due to the new systems placed in service in 2025, plus a full year of costs recognized in 2025 for systems placed in service in 2024 versus only a partial amount of such expenses related to the period in which the assets were in service in 2024.

The Cost of customer agreements and incentives decreased to 70% of customer agreements and incentives revenue during 2025, from 78% in the prior year. This decrease is primarily due to customer pricing increases

catching up to costs.

Cost of Energy Systems and Product Sales. There was a $237.4 million increase in Cost of energy systems and product sales, which was primarily due to the corresponding net increase in the energy systems and product sales discussed above.

The Cost of energy systems and product sales decreased to 68% of energy systems and product sales revenue during 2025, when compared with 101% in the prior year, primarily due to the increase in system sales to a third-party investor related to the transaction Sunrun entered in Q3 2025 discussed above, as well as a $22.1 million increase in inventory reserves recorded in the first quarter of fiscal 2024 related to the wind-down of the AEE Solar operations with no such comparable activity in 2025.

Sales and Marketing Expense. The $92.1 million increase in Sales and marketing expense was primarily attributable to increases in costs to acquire customers through our sales lead generating partners, partially offset by a decrease in headcount driving lower employee compensation. Included in sales and marketing expense were $95.3 million and $76.2 million of amortization of costs to obtain Customer Agreements for 2025 and 2024, respectively.

Research and Development Expense. The $3.2 million decrease in Research and development expense was primarily attributable to a decrease in support-related consulting costs, as well as a decline in employee compensation.

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General and Administrative Expense. The $32.9 million increase in General and administrative expenses was primarily attributable to an increase in employee compensation costs. Additionally, there were increases related to information technology related consulting costs, when compared to the prior year period.

Goodwill impairment. The $3.1 billion decrease in Goodwill impairment expense related to an impairment charge of $3.1 billion that was a result of an interim impairment test performed during the fourth quarter of 2024. For further detail, see Note 2, Summary of Significant Accounting Policies to our consolidated financial statement included elsewhere in this Annual Report on Form 10-K.

Non-Operating Expenses

Year EndedDecember 31, Change

(in thousands)

Interest expense, net. The increase in Interest expense, net of $148.4 million is primarily related to additional non-recourse debt entered into in 2025. Included in net interest expense is $38.1 million and $34.8 million of non-cash interest recognized under Customer Agreements that have a significant financing component for 2025 and 2024, respectively.

Other (expense) income, net. The decrease in other income of $215.0 million related primarily to losses on derivatives recognized in 2025, as well as to gains on extinguishment of debt during 2024, with no such comparable activity in 2025.

Income Tax Benefit

Year Ended December 31, Change

(in thousands)

The increase in Income tax benefit of $140.4 million primarily relates to increased proceeds from investment tax credit transfers and a reduction of goodwill impairment, which was partially offset by an overall increase in valuation allowance on certain tax credits and net operating losses, a decrease in pre-tax loss, and a decrease in losses allocable to noncontrolling interests and redeemable noncontrolling interests.

Given our net operating loss carryforwards as of December 31, 2025, we do not expect to pay income tax, including in connection with our 2025 income tax provision, until our net operating losses are fully utilized. As of December 31, 2025, we had net operating loss carryforwards for federal, state, and foreign income tax purposes of approximately $720.7 million, $3.5 billion, and $1.3 billion, respectively, which will begin to expire in 2028 for federal purposes, in 2026 for state purposes, and in 2031 for foreign purposes. In addition, federal and certain state net operating loss carryforwards generated in tax years beginning after December 31, 2017 total $2.6 billion and $371.4 million, respectively, and have indefinite carryover periods and do not expire.

Net Loss Attributable to Noncontrolling Interests and Redeemable Noncontrolling Interests

Year EndedDecember 31, Change

(in thousands)

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The decrease in Net loss attributable to noncontrolling interests and redeemable noncontrolling interests was primarily the result of an addition of only six new investment funds in 2025, as compared to the addition of seven new investment funds in 2024, for which the HLBV method was used in determining the amount of net loss attributable to noncontrolling interests. Investment funds generally allocate more loss to the noncontrolling interest in the first several years after fund formation.

Liquidity and Capital Resources

As of December 31, 2025, we had cash of $823.4 million, which consisted of cash held in checking and savings accounts with financial institutions. We finance our operations mainly through a variety of financing fund arrangements that we have formed with fund investors, cash generated from our sources of revenue and borrowings from secured credit facilities arrangements with syndicates of banks and from secured, long-term non-recourse loan arrangements. In 2025, we received $1.2 billion of new commitments on secured credit facilities arrangements and $1.6 billion of commitments from secured, long-term non-recourse loan arrangements. Our principal uses of cash are funding our business, including the costs of acquisition and installation of energy systems, satisfaction of our obligations under our debt instruments and other working capital requirements. As of December 31, 2025, we had outstanding borrowings of $238.3 million on our $321.4 million credit facility maturing in March 2028. In December 2025, we amended our bank line of credit to, among other things, reduce the total commitments from $447.5 million to approximately $321.4 million, and to extend the maturity date from March 2027 to March 2028. In 2024, we amended one of our subsidiary’s senior secured credit facility to, among other things, increase the total commitments from $1.8 billion to $2.6 billion and extend the maturity date from April 2025 to April 2028. For further information regarding certain of the impacts our ability to raise capital on our business, see Part I, Item 1A. Risk Factors— Risks Related to Our Operating Structure and Financing Activities—"We need to raise capital to finance the continued growth of our operations and solar service business. If capital is not available to us on acceptable terms, as and when needed, our business and prospects would be materially and adversely impacted. In addition, our business is affected by general economic conditions and related uncertainties affecting markets in which we operate. Volatility in current economic conditions could adversely impact our business, including our ability to raise financing.”

Additionally, we have purchase commitments, which have the ability to be canceled without significant penalties, with multiple suppliers to purchase $2.0 billion of photovoltaic modules, inverters and batteries by the end of the fourth quarter of 2025. In February 2024, we issued $475.0 million of convertible senior notes with a maturity date of March 1, 2030, for net proceeds of approximately $470.1 million. Our business model requires substantial outside financing arrangements to grow the business and facilitate the deployment of additional energy systems. The energy systems that are operational are expected to generate a positive return rate over the term of the Customer Agreement, typically 20 or 25 years. However, in order to grow, we will continue to be dependent on financing from outside parties. If financing is not available to us on acceptable terms if and when needed, we may be required to reduce planned spending, which could have a material adverse effect on our operations. While there can be no assurances, we anticipate raising additional required capital from new and existing investors. We believe our cash, investment fund commitments and available borrowings as further described below will be sufficient to meet our anticipated cash needs for at least the next 12 months. We believe we will meet longer-term expected future cash requirements and obligations through a combination of cash flows from operating activities, available cash balances, and available credit via our credit facilities. The following table summarizes our cash flows for the periods indicated:

Year Ended December 31,

(in thousands)

Consolidated cash flow data:

Net cash used in operating activities $ (421,440) $ (766,153)

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Operating Activities

During 2025, we used $421.4 million in net cash from operating activities. The driver of our operating cash outflow consisted of the cost of our revenue, as well as sales, marketing and general and administrative costs. During 2025, after adjusting our net loss to exclude non-operating and non-cash items, we had operating cash outflows of $20.3 million. Additionally, changes in working capital resulted in a net cash outflow of $441.7 million.

During 2024, we used $766.2 million in net cash from operating activities. The driver of our operating cash outflow consisted of the cost of our revenue, as well as sales, marketing and general and administrative costs. During 2024, after adjusting our net loss to exclude non-operating and non-cash items, we had operating cash outflows of $447.6 million. Additionally, changes in working capital resulted in a net cash outflow of $318.5 million.

Investing Activities

During 2025, we used $2.5 billion in cash in investing activities. The majority was used to design, acquire and install energy systems and components under our long-term Customer Agreements.

During 2024, we used $2.7 billion in cash in investing activities. The majority was used to design, acquire and install energy systems and components under our long-term Customer Agreements.

Financing Activities

During 2025, we generated $3.2 billion from financing activities. This was primarily driven by $1.8 billion in net proceeds from fund investors, $1.6 billion in net proceeds from debt, $2.1 million in net proceeds from convertible senior notes and $16.8 million in net proceeds from stock-based awards activity, offset by $124.3 million in net repayments from trade receivable financing, $30.7 million in acquisition of noncontrolling interests and $25.2 million in repayments under finance lease obligations.

During 2024, we generated $3.4 billion from financing activities. This was primarily driven by $1.3 billion in net proceeds from fund investors, $2.1 billion in net proceeds from debt, $124.3 million in net proceeds from trade receivable financing, $98.2 million in net proceeds from convertible senior notes and $18.9 million in net proceeds from stock-based awards activity, offset by $26.2 million in acquisition of noncontrolling interests and $27.2 million in repayments under finance lease obligations.

Debt and Fund Commitments

As of December 31, 2025, we had committed and available capital of approximately $1.0 billion that may only be used to purchase and install energy systems. We intend to establish new investment funds in the future, and we may also use debt, equity or other financing strategies to finance our business. For a discussion of the terms and conditions of debt instruments and changes thereof in the period, refer to Note 10, Indebtedness, to our consolidated financial statements included elsewhere in this Annual Report on Form 10-K.

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Recent Accounting Pronouncements

See Note 2, Summary of Significant Accounting Policies, to our consolidated financial statements included elsewhere in this Annual Report on Form 10-K.

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Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

We are exposed to certain market risks in the ordinary course of our business. Our primary exposure includes changes in interest rates because certain borrowings bear interest at floating rates based on SOFR, as applicable, plus a specified margin. We sometimes manage our interest rate exposure on floating-rate debt by entering into derivative instruments to hedge all or a portion of our interest rate exposure in certain debt facilities. We do not enter into any derivative instruments for trading or speculative purposes. Changes in economic conditions could result in higher interest rates, thereby increasing our interest expense and operating expenses and reducing funds available for capital investments, operations and other purposes. A hypothetical 10% increase in our interest rates on our variable rate debt facilities would have increased our interest expense by $11.3 million and $14.8 million for the year ended December 31, 2025 and 2024, respectively.

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Item 8. Financial Statements and Supplementary Data.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Reports of Independent Registered Public Accounting Firm (PCAOB ID: 0042) 80

Consolidated Balance Sheets 83

Consolidated Statements of Operations 85

Consolidated Statements of Comprehensive Income (Loss) 86

Consolidated Statements of Cash Flows 88

Notes to Consolidated Financial Statements 90

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Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of Sunrun Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Sunrun Inc. (the Company) as of December 31, 2025 and 2024, the related consolidated statements of operations, comprehensive (loss) income, redeemable noncontrolling interests and stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2025, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2025, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 26, 2026 expressedan unqualified opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

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Noncontrolling Interests and Redeemable Noncontrolling Interests

/s/ Ernst & Young LLP

We have served as the Company’s auditor since 2010.

San Francisco, California

February 26, 2026

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Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of Sunrun Inc.

Opinion on Internal Control Over Financial Reporting

We have audited Sunrun Inc.’s internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Sunrun Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2025, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the 2025 consolidated financial statements of the Company and our report dated February 26, 2026 expressed an unqualified opinion thereon.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Ernst & Young LLP

San Francisco, California

February 26, 2026

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Sunrun Inc.

Consolidated Balance Sheets

(In Thousands, Except Share Par Values)

As of December 31,

Assets

Current assets:

Liabilities and total equity

Current liabilities:

Deferred grants, current portion 8,681 7,900

Finance lease obligations, current portion 24,557 26,045

Finance lease obligations, net of current portion 36,908 66,139

Commitments and contingencies (Note 17)

Stockholders’ equity:

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(1)The Company’s consolidated assets as of December 31, 2025 and 2024 include $15,593,689 and $13,290,216, respectively, in assets of variable interest entities, or “VIEs”, that can only be used to settle obligations of the VIEs. Energy systems, net, as of December 31, 2025 and 2024 were $13,777,190 and $12,062,819, respectively; cash as of December 31, 2025 and 2024 were $539,440 and $420,756, respectively; restricted cash as of December 31, 2025 and 2024 were $59,010 and $57,892, respectively; accounts receivable, net as of December 31, 2025 and 2024 were $118,907 and $92,259, respectively; inventories as of December 31, 2025 and 2024 of $180,841 and $62,581, respectively; prepaid expenses and other current assets as of December 31, 2025 and 2024 were $64,588 and $7,616, respectively and other assets as of December 31, 2025 and 2024 were $853,713 and $586,293, respectively. The Company’s consolidated liabilities as of December 31, 2025 and 2024 include $2,643,129 and $2,343,040, respectively, in liabilities of VIEs whose creditors have no recourse to the Company. These liabilities include accounts payable as of December 31, 2025 and 2024 of $5,125 and $5,400, respectively; distributions payable to noncontrolling interests and redeemable noncontrolling interests as of December 31, 2025 and 2024 of $47,073 and $41,465, respectively; accrued expenses and other liabilities as of December 31, 2025 and 2024 of $110,390 and $42,997, respectively; deferred revenue as of December 31, 2025 and 2024 of $1,025,241 and $826,854, respectively; non-recourse debt as of December 31, 2025 and 2024 of $1,434,535 and $1,407,784, respectively; and other liabilities as of December 31, 2025 and 2024 of $20,765 and $18,540, respectively.

The accompanying notes are an integral part of these consolidated financial statements.

84

Sunrun Inc.

Consolidated Statements of Operations

(In Thousands, Except Per Share Amounts)

Year Ended December 31,

Revenue:

Operating expenses:

Net income (loss) per share attributable to common stockholders

The accompanying notes are an integral part of these consolidated financial statements.

85

Sunrun Inc.

Consolidated Statements of Comprehensive Income (Loss)

(In Thousands)

Year Ended December 31,

The accompanying notes are an integral part of these consolidated financial statements.

86

Sunrun Inc.

Consolidated Statements of Redeemable Noncontrolling Interests and Stockholders' Equity

(In Thousands)

Shares Amount

Other comprehensive loss, net of taxes — — — — (12,433) — (12,433) — (12,433)

Other comprehensive loss, net of taxes — — — — (23,711) — (23,711) — (23,711)

The accompanying notes are an integral part of these consolidated financial statements

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Sunrun Inc.

Consolidated Statements of Cash Flows

(In Thousands)

Year Ended December 31,

Operating activities:

Adjustments to reconcile net loss to net cash used in operating activities:

Interest on pass-through financing obligations — 8,837 19,504

Reduction in pass-through financing obligations — (20,787) (40,352)

Changes in operating assets and liabilities:

Deferred tax liabilities 198,071 — —

Investing activities:

Purchase of equity investment — — (5,000)

Financing activities:

Proceeds from state tax credits, net of recapture 9,668 5,203 4,033

Repayment of trade receivable financing (291,342) — (41,225)

Proceeds from pass-through financing and other obligations, net — 4,795 8,812

Repayment of pass-through financing obligation — (240,288) —

Supplemental disclosures of cash flow information

Cash paid for income taxes $ — $ — $ —

Supplemental disclosures of noncash investing and financing activities

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The accompanying notes are an integral part of these consolidated financial statements.

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Sunrun Inc.

Notes to Consolidated Financial Statements

Note 1. Organization

Sunrun Inc. (“Sunrun” or the “Company”) was formed in 2007. The Company is engaged in the design, development, installation, sale, ownership and maintenance of home battery storage and energy systems (“Projects”) in the United States.

Sunrun acquires customers directly and through relationships with various solar and strategic partners (“Partners”). The Projects are constructed either by Sunrun or by Sunrun’s Partners and are mostly owned by the Company. Sunrun’s customers enter into an agreement to utilize the home battery storage and/or energy system (the “Customer Agreement”) which typically have an initial term of 20 or 25 years. Sunrun monitors, maintains and insures the Projects during the term of the Customer Agreement. Certain of these energy systems under Customer Agreements are sold to third-party investors. The Company also owns and operates home-to-grid power plants, home electrification products, and solar leads generated by customers.

The Company has formed various subsidiaries (“Funds”) to finance the development of Projects. These Funds, structured as limited liability companies, obtain financing from outside investors and purchase Projects from Sunrun under master purchase agreements. The Company currently utilizes a partnership-flip legal structure for its Funds.

Note 2. Summary of Significant Accounting Policies

Basis of Presentation and Principles of Consolidation

The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and reflect the accounts and operations of the Company and those of its subsidiaries, including Funds, in which the Company has a controlling financial interest. The typical condition for a controlling financial interest ownership is holding a majority of the voting interests of an entity. However, a controlling financial interest may also exist in entities, such as variable interest entities (“VIEs”), through arrangements that do not involve controlling voting interests. In accordance with the provisions of Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810, Consolidation, the Company consolidates any VIE of which it is the primary beneficiary. The primary beneficiary, as defined in FASB ASC Topic 810, Consolidation, is the party that has (1) the power to direct the activities of a VIE that most significantly impact the VIE’s economic performance and (2) the obligation to absorb the losses of the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. The Company evaluates its relationships with its VIEs on an ongoing basis to determine whether it continues to be the primary beneficiary. The consolidated financial statements reflect the assets and liabilities of VIEs that are consolidated. All intercompany transactions and balances have been eliminated in consolidation.

Effective December 31, 2025, the Company revised the terminology used for certain financial statement line items to better align with its operations. The Company has renamed financial statement line items “Solar energy systems, net” on the consolidated balance sheets as “Energy systems, net”, “Solar energy systems and product sales” and “Cost of solar energy systems and product sales” on the consolidated statements of operations as “Energy systems and product sales” and “Cost of energy systems and product sales,” respectively, and “Payments for the costs of solar energy systems” as “Payments for the costs of energy systems” on the consolidated statements of cash flows. The change in terminology does not impact the amounts reported in the financial statements. Comparative periods have been renamed to reflect this change for consistency.

Use of Estimates

The preparation of the consolidated financial statements requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The Company regularly makes estimates and assumptions, including, but not limited to, revenue recognition constraints that result in variable consideration, the discount rate used to adjust the promised amount of consideration for the effects of a significant financing component, the estimates that affect the collectability of accounts receivable, the valuation of inventories, the useful lives of energy systems, the useful lives of property and equipment, the fair value estimates used in the goodwill impairment calculation, the discount rate used for operating and financing leases, the valuation of stock-based compensation, the determination of valuation allowances associated with deferred tax assets, the fair value of debt instruments disclosed and the redemption value of redeemable noncontrolling interests. The Company bases its estimates on historical experience and various other assumptions believed to be reasonable. Actual results may differ from such estimates.

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Sunrun Inc.

Notes to Consolidated Financial Statements — Continued

Segment Information

The Company has one operating segment with one business activity, providing solar energy services and products to customers. The Company's chief operating decision maker ("CODM") is its Chief Executive Officer, who reviews financial information presented on a consolidated basis. When evaluating performance and allocating resources, the CODM uses consolidated income (loss) from operations and net income (loss). These financial metrics are used by the CODM to make key operating decisions, such as the determination of volume targets and the allocation of budget between cost of revenues, sales and marketing, research and development, and general and administrative expenses. The CODM does not use asset or liability information in evaluating the Company’s operating segment.

Revenue from external customers (including, but not limited to homeowners) for each group of similar products and services is as follows (in thousands):

Year Ended December 31,

Revenue from Customer Agreements includes payments by customers for the use of the system as well as utility and other rebates assigned by the customer to the Company in the Customer Agreement. Revenue from incentives includes revenue from the sale of solar renewable energy credits (“SRECs”). Energy systems sales are revenue from the sale of energy systems directly to customers or third-party investors. Product sales revenue consists of revenue from the sale of solar panels, inverters, racking systems, roof repair, and other solar energy products sold to resellers, as well as the sale of customer leads to third parties, including the Company’s partners and other solar providers. Revenue from energy system sales from one customer represents approximately $683.7 million of the Company’s consolidated revenues for the year ended December 31, 2025.

Cash and Restricted Cash

Cash consists of bank deposits held in checking and savings accounts. The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. The Company has exposure to credit risk to the extent cash balances exceed amounts covered by federal deposit insurance. The Company believes that its credit risk is not significant.

Restricted cash represents amounts related to obligations under certain financing transactions and future replacement of energy system components.

The following table provides a reconciliation of cash and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows. Cash and restricted cash consists of the following (in thousands):

December 31,

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Sunrun Inc.

Notes to Consolidated Financial Statements — Continued

Accounts Receivable

Accounts receivable consist of amounts due from customers as well as state and utility rebates due from government agencies and utility companies. Under Customer Agreements, the customers typically assign incentive rebates to the Company.

Accounts receivable are recorded at net realizable value. The Company maintains allowances for the applicable portion of receivables using the expected credit loss model. The Company estimates expected credit losses from doubtful accounts based upon the expected collectability of all accounts receivables, which takes into account the number of days past due, collection history, identification of specific customer exposure, current economic trends, and management’s expectation of future economic conditions. Once a receivable is deemed to be uncollectible, it is written off. In 2025, 2024 and 2023, the Company recorded provisions for credit losses of $24.7 million, $17.0 million and $21.7 million, respectively, and wrote-off uncollectible receivables of $19.4 million, $20.7 million and $15.8 million, respectively.

Accounts receivable, net consists of the following (in thousands):

December 31,

Third party system sales receivables 44,419 —

Asset Retirement Obligation

The Company has an asset retirement obligation (“ARO”) arising from contractual or regulatory requirements to perform certain asset retirement activities at the time the Company's energy systems are retired. The Company recognizes a corresponding ARO when an obligating event takes place, which typically is when the energy system is installed. An asset is considered retired when it is permanently taken out of service, such as through a sale or disposal. The Company's aggregate ARO is immaterial and is recorded as a component of energy systems, net and other liabilities on the Company’s consolidated balance sheets. The Company's ARO balances are subject to change in future periods given the inherent uncertainty in estimating asset retirement costs and timing.

Inventories

Inventories are stated at the lower of cost or net realizable value on a first-in, first-out basis. Inventories consist of raw materials such as photovoltaic panels, inverters and mounting hardware as well as miscellaneous electrical components that are sold as-is by the distribution operations and used in installations and work-in-process. Work-in-process primarily relates to energy systems that will be sold to customers, which are partially installed and have yet to meet the criteria for revenue recognition. For energy systems where the Company performs the installation, the Company commences transferring component parts from inventories to construction-in-progress, a component of energy systems, once a lease contract with a lease customer has been executed and the component parts have been assigned to a specific project. Additional costs incurred including labor and overhead are recorded within construction in progress.

The Company periodically reviews inventories for unusable and obsolete items based on assumptions about future demand and market conditions. Based on this evaluation, provisions are made to write inventories down to their market value.

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Sunrun Inc.

Notes to Consolidated Financial Statements — Continued

Energy Systems, net

The Company records energy systems subject to signed Customer Agreements and energy systems that are under installation as energy systems, net on its consolidated balance sheet. Energy systems, net is comprised of system equipment costs related to energy systems, less accumulated depreciation and amortization. Depreciation on energy systems is calculated on a straight-line basis over the estimated useful lives of the systems of 35 years. The Company periodically reviews its estimated useful life and recognizes changes in estimates by prospectively adjusting depreciation expense. Inverters and batteries are depreciated over their estimated useful life of 10 to 15 years.

Energy systems under construction will be depreciated as energy systems subject to signed Customer Agreements when the respective systems are completed and interconnected.

Property and Equipment, net

Property and equipment, net consists of leasehold improvements, furniture, computer hardware and software, machinery and equipment and automobiles. All property and equipment are stated at historical cost net of accumulated depreciation. Repairs and maintenance are expensed as incurred.

Property and equipment is depreciated on a straight-line basis over the following periods:

Leasehold improvements Lesser of 6 years or lease term

Furniture 5 years

Computer hardware and software 3 years

Machinery and equipment 5 years or lease term

Automobiles Lease term

Capitalization of Software Costs

For costs incurred in the development of internal use software, including cloud implementation costs, the Company capitalizes costs incurred during the application development stage. Costs related to preliminary project activities and post implementation activities are expensed as incurred. Internal use software is amortized on a straight-line basis over its estimated useful life of 3 years. Costs of $33.5 million, $25.9 million and $21.3 million were capitalized in 2025, 2024 and 2023, respectively.

Impairment of Long-Lived Assets

The carrying values of the Company’s long-lived assets, including energy systems, are periodically reviewed for impairment whenever events or changes in circumstances indicate that the carrying value of these assets may not be recoverable or that the useful life is shorter than originally estimated. Factors that are considered in deciding when to perform an impairment review would include significant negative industry or economic trends and significant changes or planned changes in the use of the assets. Recoverability of these assets is measured by comparison of the carrying value of each asset group to the future undiscounted cash flows the asset group is expected to generate over its remaining life. If the asset group is considered to be impaired, the amount of any impairment is measured as the difference between the carrying value and the fair value of the impaired asset group. If the useful life is shorter than originally estimated, the Company amortizes the remaining carrying value over the new shorter useful life. The Company has recognized no material impairments of its long-lived assets in any of the periods presented.

Goodwill

Goodwill represents the excess of the purchase price over the fair value of assets acquired and liabilities assumed. Goodwill is reviewed for impairment at least annually or whenever events or changes in circumstances indicate that the carrying value may be impaired. The Company has determined that it operates as one reporting unit and the Company’s goodwill is recorded at the enterprise level. The Company performs its annual impairment test of goodwill on October 1 of each fiscal year or whenever events or circumstances change or occur that would indicate that goodwill might be impaired. When assessing goodwill for impairment, the Company uses qualitative

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Notes to Consolidated Financial Statements — Continued

and if necessary, quantitative methods in accordance with FASB ASC Topic 350, Goodwill. The Company also considers its enterprise value and if necessary, discounted cash flow model, which involves assumptions and estimates, including the Company’s future financial performance, weighted average cost of capital and interpretation of currently enacted tax laws.

Circumstances that could indicate impairment and require the Company to perform a quantitative impairment test include significant declines in the Company’s financial results or enterprise value relative to its net book value or a sustained decline in the Company's stock price below its book value, coupled with declines in valuations for comparable public companies or acquisition premiums. The Company tests goodwill for impairment for its one reporting unit using an estimated fair value approach.

During the fourth quarter of fiscal 2024, due to the significant sustained decline in the Company’s market capitalization below the book value of equity, the Company performed an interim quantitative assessment. The Company estimated the fair value of its reporting unit primarily based on consideration of an income approach and market capitalization. Under the income approach, future cash flows of the Company were estimated and present valued based on a discount rate reflecting a market participant risk-adjusted rate of return.

The assumptions and estimates used in the assessment include, among others, estimated future net annual contracted cash flows under its existing long term customer agreements, as well as future growth estimates which rely on management judgment. The Company selected estimates used in the discounted cash flow projections using historical data as well as current and anticipated market conditions, and estimated growth rates with consideration of published industry trends. The Company also compared the total invested capital (including market capitalization) to the fair value of its reporting unit to assess the reasonableness of fair value. The Company concluded that the fair value of its one reporting unit did not exceed its carrying value as of December 31, 2024 and recorded a non-cash goodwill impairment charge of $3.1 billion in its consolidated statements of operations primarily driven by the Company’s market capitalization. This impairment charge did not result in a change to previously recorded deferred taxes, as goodwill was not deductible for tax purposes, nor did it impact the Company’s liquidity position, its debt covenants or cash flows. As a result of this impairment charge, the Company no longer carries any Goodwill in its consolidated balance sheet as of December 31, 2025.

Supplier Finance Agreements

The Company has entered into supplier finance agreements with certain financial institutions, whereby these institutions pay amounts related to trade and inventory payables to suppliers on behalf of the Company. The terms of these agreements allow the Company to extend, at its sole discretion, the original supplier payment terms up to 90 or 120 days. The Company does not provide any form of guarantee under these financing agreements. Amounts outstanding under these agreements are reflected in Accrued expenses and other liabilities in the consolidated balance sheets. The Company records interest for the period the supplier finance obligation is outstanding and reflects the proceeds and payments related to these transactions as a financing activity within its consolidated statement of cash flow.

The following is a rollforward of the obligations under these supplier finance agreements (in thousands):

Supplier finance obligations outstanding at December 31, 2023 $ —

Proceeds from trade receivable financing 124,261

Repayment of trade receivable financing —

Accrued interest on trade receivable financing 5,977

Supplier finance obligations outstanding at December 31, 2024 130,238

Proceeds from trade receivable financing 167,081

Repayment of trade receivable financing (291,342)

Repayment of accrued interest on trade receivable financing (5,977)

Supplier finance obligations outstanding at December 31, 2025 $ —

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Sunrun Inc.

Notes to Consolidated Financial Statements — Continued

Deferred Revenue

When the Company receives consideration, or when such consideration is unconditionally due, from a customer prior to delivering goods or services to the customer under the terms of a Customer Agreement, the Company records deferred revenue. Such deferred revenue consists of amounts for which the criteria for revenue recognition have not yet been met and includes amounts that are collected or assigned from customers, including upfront deposits and prepayments, and rebates. Deferred revenue relating to financing components represents the cumulative excess of interest expense recorded on financing component elements over the related revenue recognized to date and will eventually net to zero by the end of the initial term. Amounts received related to the sales of SRECs which have not yet been delivered to the counterparty are recorded as deferred revenue.

The opening balance of deferred revenue was $1.2 billion as of December 31, 2023. Deferred revenue consists of the following (in thousands):

December 31,

Under Customer Agreements:

Under SREC contracts:

During the years ended December 31, 2025, 2024 and 2023, the Company recognized revenue of $152.7 million, $137.7 million and $113.3 million, respectively, from amounts included in deferred revenue at the beginning of the respective periods. Revenue allocated to remaining performance obligations represents contracted revenue that has not yet been recognized and includes deferred revenue as well as amounts that will be invoiced and recognized as revenue in future periods. Contracted but not yet recognized revenue was approximately $37.3 billion as of December 31, 2025, of which the Company expects to recognize approximately 5% over the next 12 months. The annual recognition is not expected to vary significantly over the next 10 years as the vast majority of existing Customer Agreements have at least 10 years remaining, given that the average age of the Company's fleet of residential energy systems under Customer Agreements is less than 6 years due to the Company being formed in 2007 and having experienced significant growth in the last few years. The annual recognition on these existing contracts will gradually decline over the midpoint of the Customer Agreements over the following 10 years as the typical 20- or 25-year initial term expires on individual Customer Agreements.

Deferred Grants

Deferred grants consist of U.S. Treasury grants and state tax credits. The Company applied for a renewable energy technologies income tax credit offered by one of the states in the form of a cash payment and deferred the tax credit as a grant on the consolidated balance sheets. The Company records the grants as deferred grants and recognizes the benefit on a straight-line basis over the estimated depreciable life of the associated assets as a reduction in Cost of customer agreements and incentives.

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Sunrun Inc.

Notes to Consolidated Financial Statements — Continued

Warranty Accrual

The Company accrues warranty costs when revenue is recognized for energy systems sales, based on the estimated future costs of meeting its warranty obligations. Warranty costs primarily consist of replacement costs for supplies and labor costs for service personnel since warranties for equipment and materials are covered by the original manufacturer’s warranty (other than a small deductible in certain cases). As such, the warranty reserve is immaterial in all periods presented. The Company makes and revises these estimates based on the number of energy systems under warranty, the Company’s historical experience with warranty claims, assumptions on warranty claims to occur over a systems’ warranty period and the Company’s estimated replacement costs. A warranty is provided for solar systems sold and leased. However, for the energy systems under Customer Agreements, the Company does not accrue a warranty liability because those systems are owned by consolidated subsidiaries of the Company. Instead, any repair costs on those energy systems are expensed when they are incurred as a component of customer agreements and incentives costs of revenue.

Solar Energy Performance Guarantees

The Company guarantees to customers certain specified minimum solar energy production output for solar facilities over the initial term of the Customer Agreements. The Company monitors the energy systems to determine whether these specified minimum outputs are being achieved. Annually or every two years, depending on the terms of the Customer Agreement, the Company will refund a portion of electricity payments to a customer if the solar energy production output was less than the performance guarantee. The Company considers this a variable component that offsets the transaction price.

Derivative Financial Instruments

The Company recognizes all derivative instruments on the balance sheet at their fair value. Changes in the fair value of derivatives are recorded each period in current earnings or other comprehensive income if a derivative is designated as part of a hedge transaction. The ineffective portion of the hedge, if any, is immediately recognized in earnings and is included in other (expense) income, net in the consolidated statements of operations.

The Company uses derivative financial instruments, primarily interest rate swaps, to manage its exposure to interest rate risks on its syndicated term loans, which are recognized on the balance sheet at their fair values. On the date that the Company enters into a derivative contract, the Company formally documents all relationships between the hedging instruments and the hedged items, as well as its risk management objective and strategy for undertaking each hedge transaction. Derivative instruments designated in a hedge relationship to mitigate exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Cash flow hedges are accounted for by recording the fair value of the derivative instrument on the balance sheet as either a freestanding asset or liability. Changes in the fair value of a derivative that is designated and qualifies as an effective cash flow hedge are recorded in accumulated other comprehensive loss, net of tax, until earnings are affected by the variability of cash flows of the hedged item. Any derivative gains and losses that are not effective in hedging the variability of expected cash flows of the hedged item or that do not qualify for hedge accounting treatment are recognized directly into income. At the hedge’s inception and at least quarterly thereafter, a formal assessment is performed to determine whether changes in cash flows of the derivative instrument have been highly effective in offsetting changes in the cash flows of the hedged items and whether they are expected to be highly effective in the future. The Company discontinues hedge accounting prospectively when (i) it determines that the derivative is no longer effective in offsetting changes in the cash flows of a hedged item; (ii) the derivative expires or is sold, terminated, or exercised; or (iii) management determines that designating the derivative as a hedging instrument is no longer appropriate. In all situations in which hedge accounting is discontinued and the derivative remains outstanding, the derivative instrument is carried at its fair market value on the balance sheet with the changes in fair value recognized in current period earnings. The remaining balance in accumulated other comprehensive income associated with the derivative that has been discontinued is not recognized in the income statement unless it is probable that the forecasted transaction will not occur. Such amounts are recognized in earnings when earnings are affected by the hedged transaction.

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Sunrun Inc.

Notes to Consolidated Financial Statements — Continued

Fair Value of Financial Instruments

The Company defines fair value as the exchange price that would be received for an asset or an exit price that would be paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Company uses valuation approaches to measure fair value that maximize the use of observable inputs and minimize the use of unobservable inputs. The FASB establishes a three-tier fair value hierarchy for disclosure of fair value measurements as follows:

•Level 1—Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date;

•Level 2—Inputs are observable, unadjusted quoted prices in active markets for similar assets or liabilities, unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities; and

•Level 3—Inputs that are unobservable, significant to the measurement of the fair value of the assets or liabilities and are supported by little or no market data.

The Company’s financial instruments include cash, receivables, accounts payable, accrued expenses, distributions payable to noncontrolling interests, derivatives, and recourse and non-recourse debt.

Certain assets are measured at fair value on a non-recurring basis. These assets are not measured at fair value on an ongoing basis, but are subject to fair value adjustments only in certain circumstances. These assets can include goodwill that is written down to fair value when it is impaired, which uses level 3 inputs.Assets that are written down to fair value when impaired are not subsequently adjusted to fair value unless further impairment occurs.

Revenue Recognition

The Company recognizes revenue when control of goods or services is transferred to its customers, in an amount that reflects the consideration it expects to be entitled to in exchange for those goods or services.

Customer agreements and incentives

Customer agreements and incentives revenue is primarily comprised of revenue from Customer Agreements in which the Company provides continuous access to a functioning energy system and revenue from the sales of SRECs generated by the Company’s energy systems to third parties.

The Company begins to recognize revenue on Customer Agreements when permission to operate ("PTO") is given by the local utility company or on the date daily operation commences if utility approval is not required. Revenue recognition does not necessarily follow the receipt of cash. For Customer Agreements that include a fixed fee per month which entitles the customer to any and all electricity generated by the system, and for which the Company’s obligation is to provide continuous access to a functioning energy system, the Company recognizes revenue evenly over the time that it satisfies its performance obligations, which is over the initial term of the Customer Agreements. Customer Agreements typically have an initial term of 20 or 25 years. After the initial contract term, Customer Agreements typically automatically renew annually or for a five year term.

SREC revenue arises from the sale of environmental credits generated by energy systems and is generally recognized upon delivery of the SRECs to the counterparty or upon reporting of the electricity generation.

In determining the transaction price, the Company adjusts the promised amount of consideration for the effects of the time value of money when the timing of payments provides it with a significant benefit of financing the transfer of goods or services to the customer. In those circumstances, the contract contains a significant financing component. When adjusting the promised amount of consideration for a significant financing component, the Company uses the discount rate that would be reflected in a separate financing transaction between the entity and its customer at contract inception and recognizes the revenue amount on a straight-line basis over the term of the Customer Agreement, and interest expense using the effective interest rate method.

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Sunrun Inc.

Notes to Consolidated Financial Statements — Continued

Consideration from customers is considered variable due to the performance guarantee under Customer Agreements and liquidating damage provisions under SREC contracts in the event minimum deliveries are not achieved. Performance guarantees provide a credit to the customer if the system's cumulative production, as measured on various PTO anniversary dates, is below the Company's guarantee of a specified minimum. Revenue is recognized to the extent it is probable that a significant reversal of such revenue will not occur.

The Company capitalizes incremental costs incurred to obtain a contract in Other Assets in the consolidated balance sheets. These amounts are amortized on a straight-line basis over the term of the Customer Agreements, and are included in Sales and marketing in the consolidated statements of operations.

Energy systems and product sales

For energy systems sold to customers, revenue is recognized when the energy system passes inspection by the authority having jurisdiction, which inspection generally occurs after installation but prior to PTO, at which time the Company has met the performance obligation in the contract. For energy system sales that include delivery obligations up until interconnection to the local power grid with permission to operate, the Company recognizes revenue at PTO. For sale of energy systems subject to newly originated Customer Agreements to third-party investors, the Company recognizes revenue over time as performance obligations are satisfied, based on the achievement of milestones. Certain energy systems sold to customers include fees for extended warranty and maintenance services. These fees are recognized over the life of the service agreement. The Company’s installation Projects are typically completed in less than twelve months.

Product sales consist of batteries and other solar energy products sold to resellers, roofing repair, and customer leads. Product sales revenue is recognized at the time when control is transferred, upon shipment, or as services are delivered. Customer lead revenue, included in product sales, is recognized at the time the lead is delivered.

Taxes assessed by government authorities that are directly imposed on revenue producing transactions are excluded from energy systems and product sales.

Cost of Revenue

Customer agreements and incentives

Cost of revenue for customer agreements and incentives is primarily comprised of (1) the depreciation of the cost of the energy systems, as reduced by amortization of deferred grants, (2) energy system operations, monitoring and maintenance costs including associated personnel costs, and (3) allocated corporate overhead costs.

Energy systems and product sales

Cost of revenue for energy systems and non-lead generation product sales consist of direct and indirect material and labor costs for energy systems installations and product sales. Also included are engineering and design costs, estimated warranty costs, freight costs, allocated corporate overhead costs, vehicle depreciation costs and personnel costs associated with supply chain, logistics, operations management, safety and quality control. Cost of revenue for lead generations consists of costs related to direct-response advertising activities associated with generating customer leads.

Research and Development Expense

Research and development expenses include personnel costs, allocated overhead costs, and other costs related to the development of the Company’s proprietary technology.

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Sunrun Inc.

Notes to Consolidated Financial Statements — Continued

Stock-Based Compensation

The Company grants stock options and restricted stock units (“RSUs”) for its equity incentive plan and employee stock purchase plan. Stock-based compensation to employees is measured based on the grant date fair value of the awards and recognized over the period during which the employee is required to perform services in exchange for the award (generally the vesting period of the award). When determining the grant date fair value of stock-based compensation, the Company utilizes the observable closing share price of its stock on the grant date. The Company considers whether any adjustments are needed to the share price to reflect fair value, including in instances where the observable market price does not reflect certain material non-public information known to the Company, but unavailable to marketplace participants at the time the market price is observed. No such adjustments were made during the years ended December 31, 2025, 2024, and 2023. The Company estimates the fair value of stock options and employee stock purchase plans awards granted using the Black-Scholes option-valuation model. Compensation cost is recognized over the vesting period of the applicable award using the straight-line method for those options expected to vest. For performance-based equity compensation awards, the Company generally recognizes compensation expense for each vesting tranche over the related performance period.

The Company also grants RSUs to non-employees that vest upon the satisfaction of both performance and service conditions. For RSUs granted to non-employees that vest upon the satisfaction of a performance condition, the Company starts recognizing expense on the RSUs when the performance condition is met.

Net Income (Loss) Per Share

Basic net income (loss) per share is computed by dividing net income (loss) attributable to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per share is computed by dividing net income (loss) attributable to common stockholders by the weighted-average number of common shares outstanding during the period adjusted to include the effect of potentially dilutive securities. Potentially dilutive securities are excluded from the computation of dilutive EPS in periods in which the effect would be antidilutive.

Noncontrolling Interests and Redeemable Noncontrolling Interests

Noncontrolling interests represent investors’ interests in the net assets of the Funds that the Company has created to finance the cost of its energy systems subject to the Company’s Customer Agreements. The Company has determined that the contractual provisions in the funding arrangements represent substantive profit sharing arrangements. The Company has further determined that the appropriate methodology for attributing income and loss to the noncontrolling interests and redeemable noncontrolling interests each period is a balance sheet approach referred to as the hypothetical liquidation at book value (“HLBV”) method.

Under the HLBV method, the amounts of income and loss attributed to the noncontrolling interests and redeemable noncontrolling interests in the consolidated statements of operations reflect changes in the amounts the investors would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual agreements of these arrangements, which are based on the investors' tax capital accounts, assuming the net assets of these funding structures were liquidated at recorded amounts. The Company’s initial calculation of the investor’s noncontrolling interest in the results of operations of these funding arrangements is determined as the difference in the noncontrolling interests’ claim under the HLBV method at the start and end of each reporting period, after taking into account any capital transactions, such as contributions or distributions, between the Fund and the investors.

The Company classifies certain noncontrolling interests with redemption features that are not solely within the control of the Company outside of permanent equity on its consolidated balance sheets. Redeemable noncontrolling interests are reported using the greater of their carrying value as determined by the HLBV method or their estimated redemption value at each reporting date.

Income Taxes

The Company recognizes deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the consolidated financial statements and tax returns. Under this method, deferred tax assets and liabilities are determined based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. Valuation allowances are provided against deferred tax assets to the extent that it is more likely than not

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Sunrun Inc.

Notes to Consolidated Financial Statements — Continued

that the deferred tax asset will not be realized. The Company is subject to the provisions of FASB ASC Topic 740, Income Taxes, which establishes consistent thresholds as it relates to accounting for income taxes. It defines the threshold for recognizing the benefits of tax return positions in the financial statements as “more likely than not” to be sustained by the taxing authority and requires measurement of a tax position meeting the more-likely-than-not criterion, based on the largest benefit that is more than 50% likely to be realized. Management has analyzed the Company’s inventory of tax positions with respect to all applicable income tax issues for all open tax years (in each respective jurisdiction).

The Company sells energy systems to the Funds. As the Funds are consolidated by the Company, the gain on the sale of the energy systems is not recognized in the consolidated financial statements. However, this gain is recognized for tax reporting purposes. The Company accounts for the income tax consequences of these intra-entity transfers, both current and deferred, as a component of income tax expense and deferred tax liability, net during the period in which the transfers occur.

The Company accounts for investment tax credits as a reduction of income tax expense in the year in which the credits are recognized (i.e. the flow-through method). The Company enters into ITC transfer agreements with third-party transferees to transfer to such third-parties, for cash, the ITCs generated by certain energy systems that have been or will be placed in service. The Company accounts for its share of ITC transfer proceeds under ASC 740, Income Taxes, as a reduction of income tax expense in the consolidated statement of operations during the year in which the credits are recognized (i.e., the flow-through method) and the tax equity investor’s share is distributed upon receipt.

The Company files tax returns as prescribed by the tax laws of the jurisdictions in which it operates. In the normal course of business, the Company is subject to examination by federal, state and local jurisdictions, where applicable. The statute of limitations for the tax returns varies by jurisdiction.

Concentrations of Risk

Financial instruments which potentially subject the Company to concentrations of credit risk consist primarily of cash and accounts receivable, which includes rebates receivable. The associated risk of concentration for cash is mitigated by banking with institutions with high credit ratings. At certain times, amounts on deposit exceed Federal Deposit Insurance Corporation insurance limits. The Company does not require collateral or other security to support accounts receivable. To reduce credit risk, management performs periodic credit evaluations and ongoing evaluations of its customers’ financial condition. Rebates receivable are due from various states and local governments as well as various utility companies. The Company considers the collectability risk of such amounts to be low. The Company is not dependent on any single customer. The Company’s customers under Customer Agreements are primarily located in California, Arizona, New Jersey, New York, Maryland, Illinois and Massachusetts. The loss of a customer under a Customer Agreement would not adversely impact the Company’s operating results or financial position. The Company depends on a limited number of suppliers of solar panels and other system components. During the years ended December 31, 2025 and 2024, the solar materials purchases from the top five suppliers were approximately $1.0 billion and $854.9 million, respectively.

Recently Issued and Adopted Accounting Standards

Accounting standards adopted January 1, 2023:

In October 2022, the FASB issued ASU No. 2022-04, Liabilities — Supplier Finance Programs (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations, which requires entities to disclose the key terms of

supplier finance programs they use in connection with the purchase of goods and services along with information about their obligations under these programs, including a rollforward of those obligations. This ASU is effective for fiscal periods beginning after December 15, 2022, with early adoption permitted. The Company adopted ASU 2022-04 effective January 1, 2023 and there was no impact to its financial statement disclosures.

Accounting standards adopted January 1, 2024:

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which expands disclosures about a public entity’s reportable segments and

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requires enhanced information about a reportable segment’s expenses, interim segment profit or loss, and how a public entity’s CODM uses reported segment profit or loss information in assessing segment performance and allocating resources. This ASU became effective for fiscal years beginning after December 15, 2023. The Company adopted ASU 2023-07 during the year ended December 31, 2024, see Segment Information above in this footnote for further detail.

Accounting standards adopted January 1, 2025:

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which expands disclosures in an entity’s income tax rate reconciliation table and regarding cash taxes paid both in the U.S. and foreign jurisdictions. This ASU is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The Company adopted ASU 2023-09 on a prospective basis during the year ended December 31, 2025.

Accounting standards to be adopted:

In October 2023, the FASB issued ASU 2023-06, Disclosure Improvements — Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative, to modify the disclosure or presentation requirements of a variety of topics, which will allow users to more easily compare entities subject to the SEC’s existing disclosures with those entities that were not previously subject to the SEC’s requirements, and to align the requirements in the FASB accounting standard codification with the SEC’s regulations. The amendments in this ASU are effective when the related disclosure is effectively removed from Regulations S-X or S-K, with early adoption prohibited. The Company is currently evaluating the provisions of the amendments and the impact on its future consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures: Disaggregation of Income Statement Expenses. This guidance requires disclosures about significant expense categories, including but not limited to, inventory purchases, employee compensation, depreciation, amortization, and selling expenses. This ASU is effective for fiscal years beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating this guidance and the impact it may have on its financial statement disclosures.

In November 2024, the FASB issued ASU 2024-04, Debt — Debt with Conversion and Other Options (Subtopic 470-20) — Induced Conversions of Convertible Debt Instruments. This guidance clarifies the requirements for determining whether to account for certain early settlements of convertible debt instruments as induced conversions or extinguishment. This ASU is effective for fiscal years beginning after December 15, 2025, with early adoption permitted for entities that have already adopted ASU 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity's Own Equity (Subtopic 815- 40), Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity. The Company is currently evaluating this guidance and the impact it may have on its future consolidated financial statements.

In July 2025, the FASB issued ASU 2025-05, Financial Instruments — Credit Losses (Topic 326) — Measurement of Credit Losses for Accounts Receivable and Contract Assets. This guidance provides a practical expedient permitting an entity to assume that conditions at the balance sheet date remain unchanged over the life of the asset when estimating expected credit losses for current accounts receivable and current contract assets. This ASU is effective for fiscal years beginning after December 15, 2025 and interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating this guidance and the impact it may have on its future consolidated financial statements.

In September 2025, the FASB issued ASU 2025-06, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40) — Targeted Improvements to the Accounting for Internal-Use Software. The amendments in this update improve the operability of the guidance by removing all references to software development project stages and clarifies the threshold entities apply to begin capitalizing cost.This ASU is effective for fiscal years beginning after December 15, 2027 and interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating this guidance and the impact it may have on its future consolidated financial statements.

In November 2025, the FASB issued ASU 2025-09, Derivatives and Hedging (Topic 815): Hedge Accounting Improvements. This ASU amends certain aspects of hedge accounting guidance to more closely align hedge accounting with the economics of an entity’s risk management activities in the financial statements. Specifically, this guidance allows entities to apply hedge accounting to a greater number of highly effective

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economic hedges in five areas: (i) similar risk assessment for cash flow hedges; (ii) hedging forecasted interest payments on choose-your-rate debt instruments; (iii) cash flow hedges of nonfinancial forecasted transactions; (iv) net written options as hedging instruments; and (v) Foreign-currency-denominated debt instrument as hedging instrument and hedged item (dual hedge). This ASU is effective for fiscal years beginning after December 15, 2026, with early adoption permitted. The Company is currently evaluating this guidance and the impact it may have on its future consolidated financial statements.

In December 2025, the FASB issued ASU 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements. This guidance creates a comprehensive list of interim disclosures required under GAAP and codifies a disclosure principle that requires disclosures at interim periods when an event or change that has a material effect on an entity has occurred since the last annual report. This ASU is effective for fiscal years beginning after December 15, 2027 and interim periods within those fiscal years. The Company is currently evaluating this guidance and the impact it may have on its financial statement disclosures.

In December 2025, the FASB issued ASU 2025-12, Codification Improvements. The FASB issued final guidance to clarify, correct errors in or make other improvements to a variety of topics in the Codification that are intended to make it easier to understand and apply. This ASU is effective for fiscal years beginning after December 15, 2026 and interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating this guidance and the impact it may have on its future consolidated financial statements.

Note 3. Fair Value Measurement

At December 31, 2025 and 2024, the carrying value of receivables, accounts payable, accrued expenses and distributions payable to noncontrolling interests approximates fair value due to their short-term nature and falls under the Level 2 hierarchy. The carrying values and fair values of debt instruments are as follows (in thousands):

Carrying Value Fair Value Carrying Value Fair Value

At December 31, 2025 and 2024, the fair value of certain recourse debt and certain senior, subordinated and securitization loans approximate their carrying values because their interest rates are variable rates that approximate rates currently available to the Company. At December 31, 2025 and 2024, the fair value of the Company’s other debt instruments are based on rates currently offered for debt with similar maturities and terms. The Company’s fair value of the debt instruments fell under the Level 2 hierarchy. These valuation approaches involve some level of management estimation and judgment, the degree of which is dependent on the price transparency for the instruments or market.

At December 31, 2025 and 2024, financial instruments measured at fair value on a recurring basis, based upon the fair value hierarchy are as follows (in thousands):

Level 1 Level 2 Level 3 Total

Derivative assets:

Derivative liabilities:

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Level 1 Level 2 Level 3 Total

Derivative assets:

Derivative liabilities:

Interest rate swaps $ — $ 7,385 $ — $ 7,385

The above balances are recorded in other assets and other liabilities, respectively, in the consolidated balance sheets, except for $9.8 million and $30.6 million as of December 31, 2025 and 2024, respectively, which is recorded in prepaid expenses and other current assets and $6.3 million as of December 31, 2025, which is recorded in accrued expenses and other liabilities.

The Company determines the fair value of its interest rate swaps using a discounted cash flow model that incorporates an assessment of the risk of non-performance by the interest rate swap counterparty and an evaluation of the Company’s credit risk in valuing derivative instruments. The valuation model uses various inputs including contractual terms, interest rate curves, credit spreads and measures of volatility.

Note 4. Inventories

Inventories consist of the following (in thousands):

December 31,

The Internal Revenue Service (“IRS”) provided taxpayers a safe harbor opportunity for solar facilities that began construction prior to January 1, 2025 and are placed in service on or after January 1, 2025 to elect the application of the ITC (as defined below) under Section 48(a) of the Code. The Company has sought to avail itself of the safe harbor in order to retain the ability to elect the application of the ITC under Section 48(a) of the Code by incurring certain costs and taking title to equipment in 2024. As of December 31, 2025, and 2024, there was $85.3 million and $349.5 million, respectively, related to the safe harbor program within raw materials.

Note 5. Energy Systems, net

Energy systems, net consists of the following (in thousands):

December 31,

Less: accumulated depreciation and amortization (3,384,021) (2,732,888)

All energy systems, including construction-in-progress, have been leased to or are subject to signed Customer Agreements with customers. In accordance with its policy, the Company periodically reviews the

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estimated useful lives of its fixed assets on an ongoing basis and recognizes any changes in estimated useful lives by prospectively adjusting depreciation expense. During the three months ended June 30, 2024, the Company completed an assessment of its battery equipment, which included review of an independent engineering report, and determined that the useful life of its batteries was longer than the estimated useful life being used to calculate depreciation. As a result, effective April 1, 2024, the Company changed its estimated useful life to reflect the estimated period these assets will remain in service. The estimated useful life of batteries previously was 10 years and was increased to 15 years. The impact of this change in estimate reduces depreciation expense and was immaterial for the twelve months ended December 31, 2024. For batteries placed in service as of the effective date of April 1, 2024, the impact on depreciation for the year ended December 31, 2024 was approximately $14.0 million. The Company recorded depreciation expense related to energy systems of $677.7 million, $584.6 million and $500.6 million for the years ended December 31, 2025, 2024 and 2023, respectively. The depreciation expense was reduced by the amortization of deferred grants of $9.5 million, $7.8 million and $8.2 million for the years ended December 31, 2025, 2024 and 2023, respectively.

Note 6. Property and Equipment, net

Property and equipment, net consists of the following (in thousands):

December 31,

Leasehold improvements, furniture, and computer hardware 29,009 43,835

Less: Accumulated depreciation and amortization (164,001) (156,449)

Depreciation and amortization expense was $38.3 million, $44.1 million and $31.9 million for the years ended December 31, 2025, 2024 and 2023, respectively.

Note 7. Goodwill, net

The goodwill was acquired as part of the acquisition of Mainstream Energy Corporation, which included AEE Solar and its racking business SnapNrack; Clean Energy Experts, LLC; Omni Energy, LLC; and Vivint Solar.

The Company has determined that it has one reporting unit and performs its annual impairment test of goodwill on October 1 of each fiscal year or whenever events or circumstances change or occur that would indicate that goodwill might be impaired. During the fourth quarter of 2024, the Company as part of its annual impairment test performed a qualitative assessment as of October 1, 2024 related to the recoverability of its goodwill for its one reporting unit. As of October 1, 2024, the Company concluded that the fair value of the Company’s one reporting unit exceed its carrying value with consideration of a reasonable control premium. However, during the fourth quarter of fiscal 2024, the Company performed an interim quantitative assessment as of December 31, 2024 related to the recoverability of its goodwill for its one reporting unit as a result of a material sustained decline in the Company’s market capitalization below the book value of equity. The Company concluded that the fair value of its one reporting unit did not exceed its carrying value as of December 31, 2024 and recorded a non-cash goodwill impairment charge of $3.1 billion in its consolidated statements of operations. As of September 30, 2023, the Company concluded that the fair value of the Company’s one reporting unit did not exceed its carrying value with consideration of a control premium and recorded a non-cash goodwill impairment charge of $1.2 billion in its consolidated statements of operations.

The change in the carrying value of goodwill is as follows (in millions):

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Note 8. Other Assets

Other assets consist of the following (in thousands):

December 31,

Costs to obtain contracts - customer agreements $ 2,474,515 $ 2,084,545

Costs to obtain contracts - incentives 2,481 2,481

Accumulated amortization of costs to obtain contracts (338,450) (243,989)

Allowance for credit loss on unbilled receivables (9,767) (6,928)

The Company recorded amortization of costs to obtain contracts of $95.3 million and $76.2 million for the years ended December 31, 2025 and 2024, respectively, in sales and marketing expense in the consolidated statements of operations.

The majority of unbilled receivables arise from fixed price escalators included in the Company's long-term Customer Agreements. The escalator is included in calculating the total estimated transaction value for an individual Customer Agreement. The total estimated transaction value is then recognized over the term of the Customer Agreement. The amount of unbilled receivables increases while billings for an individual Customer Agreement are less than the revenue recognized for that Customer Agreement. Conversely, the amount of unbilled receivables decreases once the billings become higher than the amount of revenue recognized in the period. At the end of the initial term of a Customer Agreement, the cumulative amounts recognized as revenue and billed to date are the same, therefore the unbilled receivable balance for an individual Customer Agreement will be zero. The Company applies an estimated loss-rate in order to determine the current expected credit loss for unbilled receivables. The estimated loss-rate is determined by analyzing historical credit losses, residential first and second mortgage foreclosures and consumers' utility default rates, as well as current economic conditions. The Company reviews individual customer collection status of electricity billings to determine whether the unbilled receivables for an individual customer should be written off, including the possibility of a service transfer to a potential new homeowner.

Note 9. Accrued Expenses and Other Liabilities

Accrued expenses and other liabilities consist of the following (in thousands):

December 31,

Accrued supplier finance obligations — 130,238

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Note 10. Indebtedness

As of December 31, 2025 and 2024, respectively, debt consisted of the following (in thousands, except percentages):

Recourse debt

Non-recourse debt (7)(12)

Unamortized debt (discount) premium, net (154,220) (117,595) —

(1)Represents the additional amount the Company could borrow, if any, based on the state of its existing assets as of December 31, 2025.

(2)Reflects weighted average contractual, unhedged rates. See Note 11, Derivatives, for hedge rates.

(3)Ranges shown reflect fixed interest rate and rates using SOFR, as applicable.

(4)The working capital facility (the “Facility”) was amended in December 2025 and its total commitment of up to $321.4 million is secured by substantially all of the unencumbered assets of the Company, as well as ownership interests in certain subsidiaries of the Company. Borrowings under the Facility may be designated as Base Rate Loans or Term SOFR Loans, subject to certain terms and conditions under the Credit Agreement. Base Rate Loans accrue interest at a rate per year equal to 2.25% to 2.75% depending on total outstanding balance as a percentage of total commitment plus the highest of (a) the federal funds rate plus 0.50%, (b) the interest rate determined from time to time by the Administrative Agent as its prime rate and notified to the Company, (c) the Adjusted Term SOFR Rate (defined below) for a one-month interest period in effect on such day (or if such day is not a business day, the immediately preceding business day) plus 1.00% and (d) 0.00%. Term SOFR Loans accrue interest at a rate per annum equal to (a) 3.25% to 3.75% depending on total outstanding balance as a percentage of total commitment plus (b) the greater of (i) 0.00% and (ii) the sum of (x) the forward-looking term rate for a period comparable to the applicable available tenor based on SOFR that is published by CME Group Benchmark Administration Ltd or a successor for the applicable interest period and (y) (1) if the applicable interest period is one month, 0.11448%, (2) if the applicable interest period is three months, 0.26161% or (c) if the applicable interest period is six months, 0.42826% (the rate

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pursuant to clause (b), the “Adjusted Term SOFR Rate”). As part of the December 2025 amendment, the maturity date of this facility was extended to March 1, 2028. The Company is in compliance with its quarter-end liquidity covenant. This facility is subject to various restrictive covenants, such as the completion and presentation of audited consolidated financial statements, maintaining a minimum modified interest coverage ratio, a minimum modified current ratio, a maximum modified leverage ratio, and a minimum unencumbered cash balance, in each case, tested quarterly. The Company was in compliance with all debt covenants as of December 31, 2025.

(5)Convertible senior notes due 2026 (the "2026 Notes") under this category with an outstanding balance of $5.5 million as of December 31, 2025 will not bear regular interest, and the principal amount of the 2026 Notes will not accrete. The 2026 Notes may bear special interest under specified circumstances relating to the Company’s failure to comply with its reporting obligations under the Indenture or if the 2026 Notes are not freely tradeable as required by the indenture. The 2026 Notes will mature on February 1, 2026, unless earlier repurchased by the Company, redeemed by the Company or converted pursuant to their terms. The initial conversion rate of the Notes is 8.4807 shares of the Company’s common stock, par value $0.0001 per share, per $1,000 principal amount of 2026 Notes, which is equivalent to an initial conversion price of approximately $117.91 per share. The conversion rate will be subject to adjustment upon the occurrence of certain specified events but will not be adjusted for any accrued and unpaid special interest. In addition, upon the occurrence of a make-whole fundamental change or an issuance of a notice of redemption, the Company will, in certain circumstances, increase the conversion rate by a number of additional shares for a holder that elects to convert its 2026 Notes in connection with such make-whole fundamental change or notice of redemption. The debt discount recorded on the 2026 Notes is being amortized to interest expense at an effective interest rate of 0.57%. As of December 31, 2025, $7.7 million of the debt discount was amortized to interest expense inception to date. In connection with the offering of the 2026 Notes, the Company entered into privately negotiated capped call transactions (the “2026 Capped Calls”) with certain of the initial purchasers and/or their respective affiliates at a cost of approximately $28.0 million. The 2026 Capped Calls are classified as equity and were recorded to additional paid-in-capital within stockholders’ equity as of March 31, 2021. The 2026 Capped Calls each have an initial strike price of approximately $117.91 per share, subject to certain adjustments, which corresponds to the initial conversion price of the 2026 Notes. The 2026 Capped Calls have initial cap prices of $157.22 per share. The 2026 Capped Calls cover, subject to anti-dilution adjustments, approximately 3.4 million shares of common stock. The 2026 Capped Calls are expected generally to reduce the potential dilution to the common stock upon any conversion of 2026 Notes and/or offset any cash payments the Company is required to make in excess of the principal amount of the 2026 Notes, as the case may be, in the event the market price per share of common stock, as measured under the 2026 Capped Calls, is greater than the strike price of the 2026 Capped Call, with such offset subject to a cap. If, however, the market price per share of the common stock, as measured under the 2026 Capped Calls, exceeds the cap price of the 2026 Capped Calls, there would be dilution and/or there would not be an offset of such potential cash payments, in each case, to the extent that the then-market price per share of the common stock exceeds the cap price. The 2026 Capped Calls expired on January 29, 2026 and the 2026 Notes were repaid on February 2, 2026. None of the conversion criteria has been met as of December 31, 2025. The 2026 Notes outstanding balance is recorded in accrued and other liabilities in the consolidated balance sheet as of December 31, 2025.