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EIX US Equity

Edison InternationalUtilities · Electric Services · CIK 827052 · FY ends Dec 31
$71.59
-3.07 (-4.11%)
USD · as of 2026-08-21 · marketstack

EIX · 10-K · period ended 2021-12-31

← all EIX documents
filed 2022-02-24 · EDGAR original ↗

Our rendering of the filing — original pagination and typography are not reproduced, and tables are reduced to their short label cells (the figures live on FA). Nothing is summarized: every line below is the filing's own text.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

☑ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

​ ​

For the fiscal year ended December 31, 2021

☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

​ ​ ​ ​ ​ ​ ​

​ ​ ​

EDISON INTERNATIONAL SOUTHERN CALIFORNIA EDISON COMPANY

2244 Walnut Grove Avenue ​ 2244 Walnut Grove Avenue

(P.O. Box 976) ​ (P.O. Box 800)

Rosemead, California 91770 ​ Rosemead, California 91770

Securities registered pursuant to Section 12(b) of the Act:

Edison International:

​ ​ ​ ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, no par value EIX NYSE LLC

Southern California Edison Company: None

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

​ ​ ​ ​ ​ ​ ​

Edison International Yes þ No ☐ Southern California Edison Company Yes þ No ☐

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.

​ ​ ​ ​ ​ ​ ​

Edison International Yes ☐ No þ Southern California Edison Company Yes ☐ No þ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

​ ​ ​ ​ ​ ​ ​

Edison International Yes þ No ☐ Southern California Edison Company Yes þ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

​ ​ ​ ​ ​ ​ ​

Edison International Yes þ No ☐ Southern California Edison Company Yes þ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-12 of the Exchange Act. (Check One):

​ ​ ​ ​ ​ ​

​ ☑ ☐ ☐ ☐ ☐

​ ☐ ☐ ☑ ☐ ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

​ ​ ​ ​ ​ ​ ​

Edison International ☐ Southern California Edison Company ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C 7262(b)) by the registered public accounting firm that prepared or issued its audit report.

​ ​ ​ ​ ​ ​ ​

Edison International ☑ Southern California Edison Company ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

​ ​ ​ ​ ​ ​ ​

Edison International Yes ☐ No þ Southern California Edison Company Yes ☐ No þ

Aggregate market value of voting and non-voting common equity held by non-affiliates of the registrants as of June 30, 2021, the last business day of the most recently completed second fiscal quarter:

​ ​ ​ ​ ​ ​ ​

Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date:

Common Stock outstanding as of February 17, 2022:

​ ​ ​ ​ ​

OMISSION OF CERTAIN INFORMATION

Southern California Edison Company meets the conditions set forth in General Instruction I(1)(a) and (b) of Form 10-K and is therefore filing this Form with the reduced disclosure format allowed under the General Instruction.

DOCUMENTS INCORPORATED BY REFERENCE

Designated portions of the Edison International Proxy Statement relating to Edison International's 2022 Annual Meeting of Shareholders are incorporated by reference into Part III of this report.

Table of Contents

TABLE OF CONTENTS

​ ​ ​

​ ​ ​

​ ​ SEC Form 10-K

​ ​ Reference Number

GLOSSARY vi ​

FORWARD-LOOKING STATEMENTS 1 ​

MANAGEMENT OVERVIEW 4 ​

Highlights of Operating Results 4 ​

Electricity Industry Trends 6 ​

2021 Cost of Capital Application 7 ​

Capital Program 8 ​

Southern California Wildfires and Mudslides 10 ​

RESULTS OF OPERATIONS 12 ​

Southern California Edison Company 12 ​

Earning Activities 14 ​

Cost-Recovery Activities 16 ​

Supplemental Operating Revenue Information 16 ​

Income Taxes 16 ​

Edison International Parent and Other 17 ​

Loss from Operations 17 ​

LIQUIDITY AND CAPITAL RESOURCES 17 ​

Southern California Edison Company 17 ​

Available Liquidity 19 ​

Regulatory Proceedings 19 ​

Capital Investment Plan 23 ​

Decommissioning of San Onofre 25 ​

SCE Dividends 26 ​

Margin and Collateral Deposits 27 ​

Edison International Parent and Other 28 ​

Net Operating Loss and Tax Credit Carryforwards 29 ​

Historical Cash Flows 29 ​

Southern California Edison Company 29 ​

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Edison International Parent and Other 33 ​

Contractual Obligations and Contingencies 34 ​

Contractual Obligations 34 ​

Contingencies 35 ​

Off-Balance Sheet Arrangements 35 ​

Environmental Developments 35 ​

MARKET RISK EXPOSURES 35 ​

Interest Rate Risk 35 ​

Commodity Price Risk 36 ​

Credit Risk 36 ​

CRITICAL ACCOUNTING ESTIMATES AND POLICIES 37 ​

Rate Regulated Enterprises 37 ​

Accounting for Contingencies 37 ​

Income Taxes 39 ​

Nuclear Decommissioning – Asset Retirement Obligation 40 ​

Pensions and Postretirement Benefits Other than Pensions 41 ​

Contributions to the Wildfire Insurance Fund 43 ​

NEW ACCOUNTING GUIDANCE 44 ​

RISK FACTORS 44 Part I, Item 1A

RISKS RELATING TO EDISON INTERNATIONAL 44 ​

RISKS RELATING TO SOUTHERN CALIFORNIA EDISON COMPANY 44 ​

Regulatory and Legislative Risks 44 ​

Operating Risks 46 ​

Financing Risks 50 ​

Competitive and Market Risks 51 ​

Cybersecurity and Physical Security Risks 51 ​

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK 53 Part II, Item 7A

FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA 53 Part II, Item 8

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM (PCAOB ID 238) 54 ​

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM (PCAOB ID 238) 58 ​

CONSOLIDATED FINANCIAL STATEMENTS 62 ​

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Consolidated Statements of Income for Edison International 62 ​

Consolidated Statements of Comprehensive Income for Edison International 63 ​

Consolidated Balance Sheets for Edison International 64 ​

Consolidated Statements of Cash Flows for Edison International 66 ​

Consolidated Statements of Changes in Equity for Edison International 67 ​

Consolidated Statements of Income for Southern California Edison Company 69 ​

Consolidated Balance Sheets for Southern California Edison Company 70 ​

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 74 ​

Note 1. Summary of Significant Accounting Policies 74 ​

Note 2. Property, Plant and Equipment 86 ​

Note 3. Variable Interest Entities 87 ​

Note 4. Fair Value Measurements 89 ​

Note 5. Debt and Credit Agreements 93 ​

Note 6. Derivative Instruments 95 ​

Note 7. Revenue 97 ​

Note 8. Income Taxes 98 ​

Note 9. Compensation and Benefit Plans 103 ​

Note 10. Investments 116 ​

Note 11. Regulatory Assets and Liabilities 117 ​

Note 12. Commitments and Contingencies 121 ​

Note 15. Accumulated Other Comprehensive Loss 136 ​

Note 16. Other Income 137 ​

Note 17. Supplemental Cash Flows Information 137 ​

Note 18. Related-Party Transactions 137 ​

CONTROLS AND PROCEDURES 138 Part II, Item 9A

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BUSINESS 139 Part I, Item 1

CORPORATE STRUCTURE, INDUSTRY AND OTHER INFORMATION 139 ​

Subsidiaries of Edison International 140 ​

Regulation of Edison International as a Holding Company 140 ​

Human Capital 140 ​

SOUTHERN CALIFORNIA EDISON COMPANY 143 ​

Regulation 143 ​

Overview of Ratemaking Process 145 ​

Purchased Power and Fuel Supply 147 ​

Competition 149 ​

Properties 151 ​

Seasonality 151 ​

SOUTHERN CALIFORNIA WILDFIRES 152 ​

Recovery of Wildfire-Related Costs 152 ​

Safety Certification and Wildfire Mitigation Plan 154 ​

ENVIRONMENTAL CONSIDERATIONS 155 ​

Greenhouse Gas Regulation 155 ​

Environmental Risks 156 ​

UNRESOLVED STAFF COMMENTS 156 Part I, Item 1B

PROPERTIES 156 Part I, Item 2

LEGAL PROCEEDINGS 156 Part I, Item 3

Environmental Proceedings 157 ​

MINE SAFETY DISCLOSURES 158 Part I, Item 4

CERTAIN INFORMATION ABOUT EDISON INTERNATIONAL 158 ​

INFORMATION ABOUT OUR EXECUTIVE OFFICERS 158 Part I

DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE 159 Part III, Item 10

EXECUTIVE COMPENSATION 159 Part III, Item 11

PRINCIPAL ACCOUNTANT FEES AND SERVICES 161 Part III, Item 14

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Edison International 162 ​

Southern California Edison Company 162 ​

Comparison of Five-Year Cumulative Total Return 162 ​

FORM 10-K SUMMARY 163 Part IV, Item 16

OTHER INFORMATION 163 Part II, Item 9BPart II, Item 6

EXHIBITS AND FINANCIAL STATEMENT SCHEDULES 163 Part IV, Item 15

Exhibit Index 165 ​

Schedules Supplementing Financial Statements 171 ​

SIGNATURES 180 ​

This is a combined Form 10-K separately filed by Edison International and Southern California Edison Company. Information contained herein relating to an individual company is filed by such company on its own behalf. Each company makes representations only as to itself and makes no other representation whatsoever as to any other company.

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GLOSSARY

The following terms and abbreviations appearing in the text of this report have the meanings indicated below.

ARO(s) asset retirement obligation(s)

BRRBA Base Revenue Requirement Balancing Account

CAISO California Independent System Operator

CAPP California Arrearage Payment Program

CCC California Coastal Commission

CDP Coastal Development Permit

CEMA Catastrophic Event Memorandum Accounts

COVID-19 Coronavirus disease 2019

CPUC California Public Utilities Commission

DERs distributed energy resources

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EEI SIF a work-related fatality or an EEI Serious Injury

ERRA Energy Resource Recovery Account

FERC Federal Energy Regulatory Commission

FHPMA Fire Hazard Prevention Memorandum Account

Fitch Fitch Ratings, Inc.

GAAP generally accepted accounting principles

GHG greenhouse gas

GRC general rate case

GS&RP Grid Safety and Resiliency Program

Moody's Moody's Investors Service, Inc.

NEM net energy metering

NERC North American Electric Reliability Corporation

NRC Nuclear Regulatory Commission

PABA Portfolio Allocation Balancing Account

PBOP(s) postretirement benefits other than pension(s)

PCIA Power Charge Indifference Adjustment

PG&E Pacific Gas & Electric Company

PSPS Public Safety Power Shutoff(s)

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ROE return on common equity

RPS California's Renewables Portfolio Standard

S&P Standard & Poor's Financial Services LLC

SDG&E San Diego Gas & Electric

SEC U.S. Securities and Exchange Commission

SED Safety and Enforcement Division of the CPUC

SED Agreement An agreement dated October 21, 2021 between SCE and the SED

SoCalGas Southern California Gas Company

WCCP Wildfire Covered Conductor Program

WEMA Wildfire Expense Memorandum Account

Wildfire Insurance Fund the insurance fund established under AB 1054

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FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements reflect Edison International's and SCE's current expectations and projections about future events based on Edison International's and SCE's knowledge of present facts and circumstances and assumptions about future events and include any statements that do not directly relate to a historical or current fact. Other information distributed by Edison International and SCE that is incorporated in this report, or that refers to or incorporates this report, may also contain forward-looking statements. In this report and elsewhere, the words "expects," "believes," "anticipates," "estimates," "projects," "intends," "plans," "probable," "may," "will," "could," "would," "should," and variations of such words and similar expressions, or discussions of strategy or plans, are intended to identify forward-looking statements. Such statements necessarily involve risks and uncertainties that could cause actual results to differ materially from those anticipated. Some of the risks, uncertainties and other important factors that could cause results to differ from those currently expected, or that otherwise could impact Edison International and SCE, include, but are not limited to the:

● ability of SCE to implement its WMP and capital program;

● ability of SCE to maintain a valid safety certification;

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● changes in the fair value of investments and other assets;

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Additional information about risks and uncertainties, including more detail about the factors described in this report, is contained throughout this report. Readers are urged to read this entire report, including information incorporated by reference, and carefully consider the risks, uncertainties, and other factors that affect Edison International's and SCE's businesses. Forward-looking statements speak only as of the date they are made and neither Edison International nor SCE are obligated to publicly update or revise forward-looking statements. Readers should review future reports filed by Edison International and SCE with the SEC. Edison International and SCE post or provide direct links to (i) certain SCE and other parties' regulatory filings and documents with the CPUC and the FERC and certain agency rulings and notices in open proceedings in a section titled "SCE Regulatory Highlights," (ii) certain documents and information related to Southern California wildfires which may be of interest to investors in a section titled "Southern California Wildfires," and (iii) presentations, documents and other information that may be of interest to investors in a section titled "Events and Presentations" at www.edisoninvestor.com in order to publicly disseminate such information.

Except when otherwise stated, references to each of Edison International or SCE mean each such company with its subsidiaries on a consolidated basis. References to "Edison International Parent and Other" mean Edison International Parent and its consolidated competitive subsidiaries and "Edison International Parent" mean Edison International on a stand-alone basis, not consolidated with its subsidiaries.

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MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The discussion related to the results of operations and changes in financial condition for 2020 compared to 2019 is incorporated by reference to Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations in Edison International's and SCE's combined Annual Report on Form 10-K for the year ended December 31, 2020, which was filed with the SEC in February 2021.

MANAGEMENT OVERVIEW

Highlights of Operating Results

Edison International is the ultimate parent holding company of SCE and Edison Energy. SCE is an investor-owned public utility primarily engaged in the business of supplying and delivering electricity to an approximately 50,000 square mile area of southern California. Edison Energy is engaged in the competitive business of providing integrated decarbonization and energy solutions to commercial, institutional and industrial customers. Edison Energy's business activities are currently not material to report as a separate business segment.

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Net income (loss) attributable to Edison International ​ ​ ​ ​

Edison International Parent and Other ​ (70) ​ (71) ​ 1 ​ (125)

Less: Non-core items ​ ​ ​ ​

SCE ​ ​ ​ ​ ​ ​ ​

Wildfire Insurance Fund expense ​ (155) ​ (242) ​ 87 ​ (109)

Sale of San Onofre nuclear fuel ​ 7 ​ 108 ​ (101) ​ 8

Re-measurement of tax assets and liabilities ​ — ​ 18 ​ (18) ​ 88

Edison International Parent and Other ​ ​ ​ ​

Customer revenues for EIS insurance contract ​ 17 ​ — ​ 17 ​ —

Sale of Vidalia lease ​ — ​ 96 ​ (96) ​ —

Goodwill impairment ​ — ​ (25) ​ 25 ​ (18)

Re-measurement of tax liabilities ​ — ​ (3) ​ 3 ​ —

Core earnings (losses) ​ ​ ​ ​

Edison International Parent and Other ​ (202) ​ (139) ​ (63) ​ (107)

Edison International's earnings are prepared in accordance with GAAP. Management uses core earnings (losses) internally for financial planning and for analysis of performance. Core earnings (losses) are also used when communicating with investors and analysts regarding Edison International's earnings results to facilitate comparisons of the company's performance from period to period. Core earnings (losses) are a non-GAAP financial measure and may not be comparable to those of other companies. Core earnings (losses) are defined as earnings attributable to Edison International shareholders less non-core items. Non-core items include income or loss from discontinued operations and income or loss from significant discrete items that management does not consider representative of ongoing earnings,

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such as write downs, asset impairments and other income and expense related to changes in law, outcomes in tax, regulatory or legal proceedings, and exit activities, including sale of certain assets and other activities that are no longer continuing.

Edison International's 2021 earnings increased $20 million, driven by an increase in SCE's earnings of $19 million and a decrease in Edison International Parent and Other losses of $1 million. SCE's higher net income consisted of $99 million of higher non-core losses and $118 million of higher core earnings.

The increase in SCE's core earnings was due to higher revenue from the 2021 GRC final decision, higher FERC revenue and income tax benefits from the settlement of 2007 – 2012 California tax audits, partially offset by lower insurance benefits and higher property taxes.

Edison International Parent and Other lower losses consisted of $64 million of higher non-core earnings and $63 million higher core losses. The increase in core losses in 2021 was primarily due to higher preferred dividends as a result of preferred equity issuances in 2021.

Consolidated non-core items for 2021 and 2020 for Edison International included:

See "Results of Operations" for discussion of SCE and Edison International Parent and Other results of operations.

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Electricity Industry Trends

The electric power industry is undergoing transformative change driven by technological advances, such as customer-owned generation, electric vehicles and energy storage, which are altering the nature of energy generation and delivery. California is committed to reducing its GHG emissions, improving local air quality and supporting continued economic growth. The state set goals to reduce GHG emissions by 40% from 1990 levels by 2030 and 80% from the same baseline by 2050. Additionally, the state is aiming to be carbon neutral by 2045. State and local air quality plans call for substantial improvements. In the most polluted areas of the state this includes reducing smog-causing nitrogen oxides 90% below 2010 levels by 2032. If California is to meet its 2030 and 2045 climate change goals, the state must quadruple its annual rate of greenhouse gas reductions by adopting market-transforming policies and incentives that address historical inequities within the next one to two years. While these policy goals cannot be achieved by the electric sector alone, the electric grid is a critical enabler of the adoption of new energy technologies that support California's climate change and GHG reduction objectives. California has set RPS targets which require California retail sellers of electricity to provide 60% of energy sales from renewable resources by 2030. California also requires sellers of electricity to deliver 100% of retail sales from carbon free sources by 2045. In 2021, approximately 42% of SCE's customer deliveries came from carbon-free resources. SCE remains well-positioned to meet its 2030 and 2045 RPS and carbon-free power goals and interim targets. In addition, Edison International is committed to achieving net-zero GHG emissions by 2045, in alignment with economy-wide climate actions planned by California. This commitment covers the power SCE delivers to customers and Edison International's enterprise-wide operations.

The current federal administration has shown an enhanced and renewed desire to respond to climate change through numerous regulatory and Executive Order actionsincluding for the development of more robust fuel efficiency and vehicle emission standards. Many of these actions align with internal company goals and efforts to address and mitigate climate change. Additionally, Congress passed historic infrastructure legislation that provides significant new funding to electrify the economy. Edison International believes these actions complement its industry-leading efforts to equitably transition to a decarbonized economy.

Edison International believes that California's 2045 goals can be achieved most economically through emissions reductions from using clean electricity serving 100% of retail sales, electrifying approximately 76% of light-duty vehicles, 67% of medium-duty vehicles, 38% of heavy-duty vehicles, 85% of buses and 70% of buildings and using low-carbon fuels for technologies that are not yet viable for electrification. California has demonstrated strong long-term support of transportation electrification as shown by the approval of SCE's Charge Ready 2 program and the Governor's September 2020 Executive Order banning sales of new gas vehicles by 2035. However, SCE believes that more state policy support, along with public and private investment, is needed to enable California to reach its 2030 GHG reduction targets.

To support these goals, Edison International's vision is to lead the transformation of the electric power industry and the company is focused on opportunities in delivering clean energy, advancing efficient electrification, building a modernized and more reliable grid, and enabling customers' technology choices. SCE is focused on improving the safety, reliability and resilience of the transmission and distribution network and enabling increased penetration of DERs, electric transportation, building electrification and energy efficiency programs. SCE's ongoing focus to drive operational and service excellence is intended to allow it to achieve these objectives safely while controlling costs and customer rates. SCE's focus on the transmission and distribution of electricity aligns with California's policy supporting competitive power procurement markets.

SCE is undertaking projects and programs to accelerate economy-wide electrification. To support system reliability, SCE is investing $1.0 billion in utility owned storage capacity in 2022. See "—Capital Program" for further details. SCE also continues to implement its transport electrification programs and as of December 31, 2021, SCE had completed

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construction at 151 sites to support 2,759 charge ports under its suite of light duty Charge Ready Programs, and 27 sites to support the electrification of 311 medium and heavy-duty vehicles through its Charge Ready Transport program.

To address a portion of the expected outcome gap to achieving California's 2030 goals, in December 2021, SCE filed a $677 million Building Electrification Program Application for a four-year program (2024 – 2027) to incentivize replacing 250,000 gas-fueled water and space heaters with efficient electric heat pumps and to upgrade the electrical infrastructure for 65,000 homes to support electrification. The proposed program includes $200 million for customer-side electrical infrastructure upgrades for which SCE has requested inclusion as a regulatory asset in rate base and $69 million in capital expenditures. The remaining $408 million of operations and maintenance expense includes heat pump incentives, program administration, and implementation costs.

Changes in the electric power industry are impacting customers and jurisdictions outside California as well. Edison International believes that other states will also pursue climate change and GHG reduction objectives and large commercial and industrial customers will continue to pursue cost reduction and sustainability goals. Edison Energy provides integrated decarbonization and energy solutions to commercial, institutional and industrial customers who may be impacted by these changes. Edison Energy aims to provide energy solutions that address cost, carbon and complex choices for their customers.

To better engage in this broader transformation and provide a view of developments outside of SCE, Edison International has made several minority investments in emerging companies in areas related to the technology changes that are driving industry transformation and may make additional investments in the future. These investments are not financially material to Edison International.

2021 Cost of Capital Application

In August 2021, SCE filed an application with the CPUC for authority to establish its authorized cost of capital for utility operations for 2022 and to reset the related annual cost of capital mechanism. SCE filed its application pursuant to the cost of capital mechanism's provision that the utilities have a right to file a cost of capital application at any time upon an extraordinary or catastrophic event that materially impacts their respective cost of capital and/or capital structure and affects them differently than the overall financial markets. SCE believes the COVID-19 pandemic and accompanying government stimulus efforts constitute such an extraordinary event because they have led to a decrease in interest rates but an increase in SCE and other utilities' cost of equity, disrupting the traditional relationship between debt and equity assumed in adopting the cost of capital mechanism.

In October 2021, the CPUC consolidated SCE's, PG&E's and SDG&E's cost of capital proceedings and ordered the utilities to file all materials that would have normally been required in advice letters filed as a result of triggering the cost of capital mechanism (see "Business—SCE—Overview of Ratemaking Process" for further information on the adjustment mechanism). SCE provided this information in November 2021. In December 2021, the CPUC granted SCE's motion to establish a memorandum account to record the difference in the revenue requirements from rates in effect beginning January 1, 2022 and the rates adopted in the proceeding. In December 2021, the CPUC also set an initial phase for the proceeding to determine whether extraordinary circumstances warrant a departure from the cost of capital mechanism for 2022 and, if so, whether the CPUC should leave the cost of capital components at pre-2022 levels for the year 2022 or open a second phase to consider alternative proposals. SCE served opening testimony in January 2022 in support of suspending operation of the cost of capital mechanism's formula adjustment mechanism and leaving cost of capital components at pre-2022 levels for 2022.

If the CPUC ultimately finds that the cost of capital mechanism adjustment should have been implemented effective January 1, 2022, SCE's revenue requirements for 2022 would reduce by $179 million due to adjustments to SCE's authorized weighted average cost of capital.

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SCE is required to file its regularly scheduled cost of capital application in April 2022 for rates effective in 2023.

Capital Program

Total capital expenditures (including accruals) were $5.4 billion in 2021 and $5.5 billion in 2020. SCE's year-end rate base was $37.9 billion at December 31, 2021, compared to $34.7 billion at December 31, 2020, after excluding rate base associated with AB 1054 Excluded Capital Expenditures.

SCE's capital expenditure forecast reflects planned CPUC-jurisdictional spending including WCCP and other programs outlined in SCE's WMP and above amounts authorized in the 2021 GRC, CPUC-approved utility owned storage expenditures and planned FERC capital expenditures.

Potential capital spending variability associated with future regulatory requests based on management judgment, potential for permitting delays and other operational considerations is reflected in the range case below. The completion of projects, the timing of expenditures, and the associated cost recovery may be affected by permitting requirements and delays, construction schedules, availability of labor, equipment and materials, financing, legal and regulatory approvals and developments, community requests or protests, weather and other unforeseen conditions.

SCE's 2021 recorded and 2022 – 2023 forecast for capital expenditures are set forth in the table below:

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total

Traditional capital expenditures ​ ​ ​ ​

Wildfire mitigation-related capital expenditures ​ 1.2 ​ 1.1 ​ 1.1 ​ 2.2

Total capital expenditures ​ $ 5.4 ​ $ 6.2 ​ $ 5.5 ​ $ 11.7

* Not applicable

SCE expects to make additional CPUC capital expenditures, the recovery of which will be subject to future regulatory approval. This includes expenditures from track 4 of the 2021 GRC, the 2025 GRC and non-GRC programs including the Building Electrification Program. These capital expenditures and expected FERC capital expenditures, excluded from the table above, are expected to be approximately $0.2 billion in 2023 and in a range of approximately $10.4 billion to $12.8 billion between 2024 and 2025.

In October 2021, SCE contracted for the construction of utility owned storage at three sites in SCE's service territory with an aggregate capacity of 537.5 MW. These storage projects are expected to result in $1.0 billion of capital expenditures through the anticipated in-service date in the summer of 2022. In December 2021, the CPUC approved recovery of these expenditures and establishment of a balancing account for the associated revenue requirement, to be reflected in rates beginning in the first quarter of 2022.

SCE's authorized CPUC-jurisdictional rate base is determined through the GRC and other regulatory proceedings. Differences between actual and CPUC-authorized capital expenditures are addressed in subsequent GRC or other regulatory proceedings. FERC-jurisdictional rate base is generally determined based on actual capital expenditures.

Reflected below is SCE's weighted average annual rate base for 2021 – 2023 incorporating authorized CPUC-jurisdictional expenditures including utility owned storage, planned FERC capital expenditures, and planned non-GRC

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projects or programs. The table below does not reflect the $1.6 billion of AB 1054 Excluded Capital Expenditures. The table below reflects the July 2021 reduction in rate base from a $400 million payment from a third party for the 30-year use of a portion of the West of Devers transmission project.

​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Rate base for expected capital expenditures ​ $ 35.3 ​ $ 38.7 ​ $ 41.3

* Not applicable

Including programs outlined in SCE's WMP subject to future cost recovery proceedings, rate base associated with wildfire restoration capital expenditures subject to future CEMA applications, and planned expenditures from track 4 of the 2021 GRC and the 2025 GRC, SCE's weighted average annual rate base could be up to $41.8 billion in 2023, and between $43.8 billion and $46.0 billion in 2024 and between $46.6 billion and $49.4 billion in 2025.

For further information regarding the capital program see "Liquidity and Capital Resources—SCE—Capital Investment Plan."

COVID-19

The COVID-19 pandemic is having a significant impact on global society and economies. As a result of the pandemic, Edison International and SCE have experienced increased costs and SCE's supply chain has faced constraints, but the pandemic has not had a pervasive impact on SCE's or Edison International's ability to operate their businesses (see "Risk Factors" for further information). However, the total impacts of the COVID-19 pandemic on Edison International and SCE will depend on numerous factors that continue to evolve and which Edison International and SCE are unable to accurately predict at this time, including the impact of any legal requirements or company policies for mandatory COVID-19 vaccination, or testing, on SCE's ability to retain its workforce.

As a result of actions taken in response to the pandemic and increased estimates of uncollectible expenses, largely related to the economic impacts of the pandemic on SCE's customers, SCE has incurred $303 million of incremental costs, net of savings, as of December 31, 2021, of which $94 million has been deferred to memorandum accounts for CPUC reasonableness review and $197 million has been transferred to balancing accounts pending recovery.

In July 2021, California's state assembly passed legislation to authorize, fund and implement the CAPP, which reduced SCE's 2020 and 2021 customer arrearages for certain residential customers. SCE received $185 million of CAPP funds on behalf of customers in January 2022. To the extent SCE's uncollectible expenses against qualified arrearages were offset by the CAPP, no recovery will be sought through other mechanisms. The legislation also prohibited certain customer disconnections for non-payment during the period that the California Department of Community Services and Development reviews the allocation of CAPP funds, SCE expects to be able to recommence disconnections of customers for non-payment in mid-2022.

In September 2021, SCE requested recovery of $57 million of incremental operation and maintenance expenses tracked in a CEMA related to COVID-19 in 2020. Incremental expenses deferred to the COVID-19 Pandemic Protections Memorandum Account of $47 million are subject to CPUC reasonableness review in annual ERRA review proceedings, with a decision on the 2020 balance expected in mid-2022. For further information see "Liquidity and Capital Resources—SCE—Regulatory Proceedings—2021 CEMA Application."

In January 2022, the CPUC approved SCE's application to recover $78 million of incremental residential uncollectible expenses subject to balancing account recovery in customer rates over a 36-month period starting March 2022. Remaining amounts subject to balancing account recovery will be recovered over a 12-month period beginning in the first quarter of 2022.

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For further information see "Notes to the Consolidated Financial Statements—Note 11. Regulatory Assets and Liabilities" and "Risk Factors."

Southern California Wildfires and Mudslides

California has experienced unprecedented weather conditions in recent years due to climate change. The worsening weather and fuel conditions across California increase the likelihood of wildfires, including those where SCE's equipment may be alleged to be associated with the fire's ignition, and SCE's service territory remains susceptible to additional wildfire activity in 2022 and beyond. In response to worsening conditions and increased wildfire activity over the past several years, SCE has developed and is implementing its 2020 – 2022 WMP to reduce the risk of SCE equipment contributing to the ignition of wildfires. In addition, California has increased its investment in wildfire prevention and fire suppression capabilities. In addition to the investments SCE is making as part of its WMP, SCE also uses its PSPS program to proactively de-energize power lines as a last resort to mitigate the risk of catastrophic wildfires during extreme weather events.

Wildfires in SCE's territory in December 2017 and November 2018 caused loss of life, substantial damage to both residential and business properties, and service outages for SCE customers. Edison International and SCE have incurred material losses in connection with the 2017/2018 Wildfire/Mudslide Events.

SCE's equipment has been, and may further be, alleged to be associated with several wildfires that have originated in Southern California subsequent to 2018. Edison International and SCE expect that any losses incurred in connection with those fires will be covered by insurance, subject to self-insured retentions and co-insurance, or third-party receivables, and expect that any such losses after recoveries will not be material.

2017/2018 Wildfire/Mudslide Events

Multiple lawsuits and investigations related to the 2017/2018 Wildfire/Mudslide Events have been initiated against SCE and Edison International. As of December 31, 2021, in addition to the Local Public Entity Settlement, the TKM Subrogation Settlement and the Woolsey Subrogation Settlement, SCE had entered into settlements with approximately 5,000 individual plaintiffs in the 2017/2018 Wildfire/Mudslide Events litigation under which it has agreed to pay an aggregate of approximately $2.0 billion.

In addition, in October 2021, SCE and the SED executed the SED Agreement to resolve the SED's investigations into the 2017/2018 Wildfire/Mudslide Events and three other 2017 wildfires for, among other things, aggregate costs of $550 million. The $550 million in costs is comprised of a $110 million fine to be paid to the State of California General Fund, $65 million of shareholder-funded safety measures, and an agreement by SCE to waive its right to seek cost recovery in CPUC-jurisdictional rates for $375 million of third-party uninsured claims payments (the "SED Excluded Losses"). The SED Agreement provides that SCE may, on a permanent basis, exclude from its ratemaking capital structure any after-tax charges to equity or debt borrowed to finance costs incurred under the SED Agreement. The SED Agreement also imposes other obligations on SCE, including reporting requirements and safety-focused studies. SCE did not admit imprudence, negligence or liability with respect to the 2017/2018 Wildfire/Mudslide Events in the SED Agreement. The CPUC approved the SED Agreement in December 2021 but its approval has been legally challenged by The Utility Reform Network. SCE's obligations under the SED Agreement will only commence after CPUC approval of the SED Agreement is final and non-appealable.

Through December 31, 2021, Edison International and SCE have recorded total pre-tax charges of $7.5 billion, recoveries from insurance of $2.0 billion and expected recoveries through FERC electric rates of $300 million related to the 2017/2018 Wildfire/Mudslide Events. The after-tax net charges to earnings recorded through December 31, 2021 have been $3.8 billion.

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As of December 31, 2021, SCE had paid $5.7 billion under executed settlements and had $131 million to be paid under executed settlements related to the 2017/2018 Wildfire/Mudslide Events. In addition, SCE's obligations under the SED Agreement will commence after CPUC approval of the SED Agreement is final and non-appealable. As of December 31, 2021, SCE had recovered $2.0 billion through insurance and $135 million through FERC-jurisdictional electric rates.

After giving effect to all payment obligations under settlements entered into through December 31, 2021, Edison International's and SCE's best estimate of expected losses for remaining alleged and potential claims related to the 2017/2018 Wildfire/Mudslide Events and for the SED Agreement was $1.6 billion. As of the same date, Edison International and SCE had assets for expected recoveries through FERC electric rates of $165 million on their consolidated balance sheets and had exhausted expected insurance recoveries related to the 2017/2018 Wildfire/Mudslide Events.

Estimated losses for the 2017/2018 Wildfire/Mudslide Events litigation are based on a number of assumptions and are subject to change as additional information becomes available. Actual losses incurred may be higher or lower than estimated based on several factors, including: the uncertainty in estimating damages that have been or may be alleged, the ability to reach settlements through the ongoing claims mediation processes, uncertainties related to the litigation processes, uncertainty as to the legal and factual determinations to be made during litigation, including uncertainty as to the contributing causes of the 2017/2018 Wildfire/Mudslide Events, the complexities associated with fires that merge and whether inverse condemnation will be held applicable to SCE with respect to damages caused by the Montecito Mudslides, and the uncertainty as to how these factors impact future settlements.

SCE will seek rate recovery of prudently-incurred, actual losses realized in connection with the 2017/2018 Wildfire/Mudslide Events in excess of available insurance, other than for CPUC-jurisdictional rate recovery of the $375 million of SED Excluded Losses if the CPUC's approval of the SED Agreement becomes final and non-appealable. SCE believes that, in light of the CPUC's decision in a cost recovery proceeding involving SDG&E arising from several 2007 wildfires in SDG&E's service area, there is substantial uncertainty regarding how the CPUC will interpret and apply its prudency standard to an investor-owned utility in wildfire cost-recovery proceedings for fires ignited prior to July 12, 2019. Accordingly, while the CPUC has not made a determination regarding SCE's prudency relative to any of the 2017/2018 Wildfire/Mudslide Events, SCE is unable to conclude, at this time, that uninsured CPUC-jurisdictional wildfire-related costs are probable of recovery through electric rates.

For further information, see "Business— Southern California Wildfires," "Risk Factor," "Notes to Consolidated Financial Statements—Note 1. Summary of Significant Accounting Policies—Initial and annual contributions to the wildfire insurance fund established pursuant to California Assembly Bill 1054" and "Notes to Consolidated Financial Statements—Note 12. Commitments and Contingencies—Contingencies—Southern California Wildfires and Mudslides" in this report.

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RESULTS OF OPERATIONS

SCE

SCE's results of operations are derived mainly through two sources:

Impact of 2021 GRC

The table below reflects the 2020 GRC authorized revenue adjusted for revenue requirements from the WEMA and GS&RP approvals in 2020, which included revenue requirements for expenditures incurred from 2018 – 2020. Revenue requirements of $497 million for operation and maintenance expense and depreciation incurred in 2020 are not included in the table as they remain subject to approval in track 3 of the 2021 GRC.

The 2021 GRC final decision resulted in a non-core impairment of utility property, plant and equipment of $79 million ($47 million after-tax) related to disallowed historical capital expenditures of pole replacements the CPUC determined were performed prematurely.

The 2021 GRC final decision determines the amount of revenue that SCE is authorized to collect from customers to recover anticipated costs, including return on rate base. The 2021 GRC final decision approved an authorized revenue requirement of $6.9 billion in 2021, an increase of $1.0 billion over amounts authorized in the 2018 GRC and an increase of $331 million over revenue requirements authorized for 2020 including the 2018 GRC and subsequent WEMA and GS&RP approvals.

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This table sets out the authorized revenue and costs of service for revenue requirements authorized in 2020 as discussed above and the 2021 GRC final decision through December 31, 2021:

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Cost of service: ​ ​ ​ ​ ​ ​ ​

4 Authorized revenue for return increased due to authorized rate base growth.

Authorized revenue increased $331 million in 2021 compared to 2020, which was comprised of an increase of $200 million in authorized revenue for earning activities and $131 million in authorized revenue for cost recovery activities.

The following tables summarize SCE's results of operations for the periods indicated. The presentation below separately identifies earning activities and cost-recovery activities. In the 2021 GRC final decision, the CPUC approved balancing accounts for cost recovery of vegetation management and wildfire insurance costs. As a result, SCE classified revenues and costs associated with these programs as cost recovery activities in 2021. Previously, SCE classified the recovery of actual costs incurred under these programs as earnings activities. The reclassification of revenues and costs had no impact on earnings.

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Years ended December 31, 2021, 2020 and 2019

The following table is a summary of SCE's results of operations for the periods indicated:

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ Cost- ​ ​ ​ ​ ​ ​ ​ Cost- ​ ​ ​ ​ ​ ​ ​ Cost- ​ ​ ​ ​

Other operating income (2) ​ — ​ (2) ​ ​ (1) ​ ​ — ​ (1) ​ (4) ​ ​ — ​ (4) ​

Less: Non-core expense ​ ​ (1,114) ​ ​ ​ (1,015) ​ ​ ​ (293) ​

Earning Activities

Earning activities in 2021 compared to 2020 were primarily affected by the following:

● Higher operating revenue of $404 million is primarily due to:

The $200 million change in authorized revenue impacting earnings included an increase of $352 million in GRC revenues from the 2021 GRC final decision offset by lower non-GRC authorized revenue of $152 million from the approval of the GS&RP balancing account in the third quarter of 2020.

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Cost-Recovery Activities

Cost-recovery activities in 2021 compared to 2020 were primarily affected by the following:

● Higher operation and maintenance expenses of $330 million due to:

Supplemental Operating Revenue Information

SCE's retail billed and unbilled revenue (excluding wholesale sales) was $13.5 billion, $12.5 billion, and $11.4 billion for 2021, 2020 and 2019, respectively.

The 2021 revenue increase is primarily related to the authorization for cost recovery as part of the GRC implementation through various balancing accounts and higher cost-recovery activities related to higher purchased power and fuel costs driven by higher power and gas prices. See "—Cost-Recovery Activities" and "—Earnings Activities" for further details.

As a result of the CPUC-authorized decoupling mechanism, the price of SCE's services depends on amounts authorized for recovery through SCE's GRCs and other regulatory proceedings and SCE earnings are not affected by changes in retail electricity sales (see "Business—SCE—Overview of Ratemaking Process").

Income Taxes

SCE's income tax benefit decreased by $294 million in 2021 compared to 2020. The effective tax rates were 1.8% and (41.7)% for 2021 and 2020, respectively. SCE's effective tax rate is below the federal statutory rate of 21% for 2021 and 2020 primarily due to the CPUC's ratemaking treatment for the current tax benefit arising from certain property-related and other temporary differences, which reverse over time. The accounting treatment for these temporary differences

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results in recording regulatory assets and liabilities for amounts that would otherwise be recorded to deferred income tax expense.

The effective tax rate increase in 2021 is primarily due to the impact of higher pre-tax income, non-tax deductible portions of the SED Agreement, an adjustment as a result of an IRS private letter ruling discussed above, lower flow-through tax benefits as a result of the adoption of the 2021 GRC final decision for certain property-related items discussed above, partially offset by higher tax benefits from the re-measurement of uncertain tax positions, including the impacts of a settlement with the FTB for tax years 2007 – 2012.

See "Notes to Consolidated Financial Statements—Note 8. Income Taxes" for a reconciliation of the federal statutory rate to the effective income tax rates.

Edison International Parent and Other

Results of operations for Edison International Parent and Other includes amounts from other subsidiaries that are not significant as a reportable segment as well as intercompany eliminations.

Loss from Operations

The following table summarizes the results of Edison International Parent and Other:

​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ Years ended December 31,

Edison Energy Group and subsidiaries ​ $ (15) ​ $ (35) ​ $ (24)

Corporate expenses and other subsidiaries ​ 5 ​ (36) ​ (101)

Edison International Parent and Other net loss ​ $ (10) ​ $ (71) ​ $ (125)

Preferred stock dividend requirement ​ ​ 60 ​ ​ — ​ ​ —

The net loss attributable to common stock from operations of Edison International Parent and Other decreased $1 million in 2021 compared to 2020 primarily due to:

LIQUIDITY AND CAPITAL RESOURCES

SCE

SCE's ability to operate its business, fund capital expenditures, and implement its business strategy is dependent upon its cash flow and access to the bank and capital markets. SCE's overall cash flows fluctuate based on, among other things, its ability to recover its costs in a timely manner from its customers through regulated rates, changes in commodity

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prices and volumes, collateral requirements, interest obligations, dividend payments to and equity contributions from Edison International, obligations to preference shareholders, and the outcome of tax, regulatory and legal matters.

In the next 12 months, SCE expects to fund its cash requirements through operating cash flows, capital market financings, and equity contributions from Edison International Parent, as needed. SCE also has availability under its credit facilities to fund cash requirements. SCE expects to issue bonds to finance or refinance eligible sustainable projects. Eligible sustainable projects include categories such as renewable energy, clean transportation, energy efficiency and carbon reduction, climate change adaptation, and socioeconomic advancement and empowerment. SCE maintains processes to ensure that proceeds from the sale of the bonds are only used for projects that are aligned with the Edison International sustainable financing framework issued in June 2021. SCE also expects to issue additional debt for general corporate purposes and to finance payments for future resolutions of claims related to the 2017/2018 Wildfire/Mudslide Events.

At December 31, 2021 SCE had invested all $1.6 billion of the required AB 1054 Excluded Capital Expenditures and SCE expects to finance these amounts by issuing securitized bonds. SCE issued securitized bonds in the amounts of $338 million in February 2021 and $533 million in February 2022. SCE expects to securitize the remaining balance of AB 1054 Excluded Capital Expenditures based on the timing of the CPUC approval of those expenditures and related financing costs. For further information, see "—Regulatory Proceedings—Wildfire Related Regulatory Proceedings." SCE expects to extend a $1.2 billion term loan due in May 2022 as necessary prior to full settlement from the proceeds of the securitized bonds.

SCE's cash flows are affected by regulatory balancing and memorandum accounts overcollections or undercollections. Overcollections and undercollections represent differences between cash collected in current rates for specified forecasted costs and the costs actually incurred. With some exceptions, SCE seeks to adjust rates on an annual basis or at other designated times to recover or refund the balances recorded in its balancing accounts. Undercollections or overcollections in these balancing and memorandum accounts impact cash flows and can change rapidly. Undercollections and overcollections generally accrue interest based on a three-month commercial paper rate published by the Federal Reserve. See "—Regulatory Proceedings" and "Notes to Consolidated Financial Statements—Note 11. Regulatory Assets and Liabilities" for further information.

The following table summarizes SCE's current, long-term issuer credit ratings and outlook from the major credit rating agencies:

​ Moody's Fitch S&P

Credit Rating ​ Baa2 ​ BBB- ​ BBB

Outlook ​ Stable ​ Stable ​ Stable

SCE's credit ratings may be further affected if, among other things, regulators fail to successfully implement AB 1054 in a consistent and credit supportive manner or the Wildfire Insurance Fund is depleted by claims from catastrophic wildfires. Credit rating downgrades increase the cost and may impact the availability of short-term and long-term borrowings, including commercial paper, credit facilities, bond financings or other borrowings. In addition, some of SCE's power procurement contracts and environmental remediation obligations would require SCE to pay related liabilities or post additional collateral if SCE's credit rating were to fall below investment grade. For further details, see "—Margin and Collateral Deposits."

The cost of capital mechanism set by the CPUC could impact SCE's results of operations and cash flows. For further information see "Management Overview—2021 Cost of Capital Application."

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Available Liquidity

At December 31, 2021, SCE had cash on hand of $279 million and $2.6 billion available to borrow on its $3.4 billion revolving credit facility. The credit facility is available for borrowing needs until May 2025.

At December 31, 2021, SCE had $601 million outstanding commercial paper, net of discount, at a weighted average interest rate of 0.45% supported by the $3.4 billion revolving credit facility. The aggregate maximum principal amount under the SCE revolving credit facility may be increased up to $4.0 billion, provided that additional lender commitments are obtained. For further details, see "Notes to Consolidated Financial Statements—Note 5. Debt and Credit Agreements."

SCE may finance balancing account undercollections and working capital requirements to support operations and capital expenditures with commercial paper, its credit facilities or other borrowings, subject to availability in the bank and capital markets. As necessary, SCE will utilize its available liquidity, capital market financings, other borrowings or parent company contributions to SCE equity in order to meet its obligations as they become due, including costs related to the 2017/2018 Wildfire/Mudslide Events. For further information, see "Management Overview—Southern California Wildfires and Mudslides."

Debt Covenant

SCE's credit facilities and term loan require a debt to total capitalization ratio as defined in the applicable agreements of less than or equal to 0.65 to 1. At December 31, 2021, SCE's debt to total capitalization ratio was 0.55 to 1.

At December 31, 2021, SCE was in compliance with all financial covenants that affect access to capital.

Regulatory Proceedings

2021 General Rate Case

The 2021 GRC consists of four separate tracks. Track 1 was similar to previous GRCs and addressed revenue requirements for the three-year period of 2021 – 2023. Tracks 2 and 3 address the reasonableness of 2018 – 2019 and 2020 wildfire mitigation costs that were incremental to amounts authorized in the 2018 GRC, respectively. Track 4 will address the revenue requirement for 2024. SCE is scheduled to submit its testimony for track 4 in May 2022. In January 2021, the CPUC approved a settlement between SCE and all the parties to track 2 of the 2021 GRC proceeding, for further information on track 3 see "—Wildfire Related Regulatory Proceedings."

Track 1

In August 2021, the CPUC approved a final decision on track 1 of the 2021 GRC, which resulted in a base rate revenue requirement of $6.9 billion in 2021, an increase of $1.0 billion over amounts authorized for 2020 in the 2018 GRC. This represented an increase of $331 million over revenue requirements authorized for 2020 through the 2018 GRC and subsequent WEMA and GS&RP CPUC approvals.

The CPUC has approved the establishment of a memorandum account making the authorized revenue requirement changes effective January 1, 2021. Under the final decision, the increase in January 2021 to September 2021 authorized revenues of $722 million are being collected over a 27-month period beginning October 1, 2021.

The final decision authorized $4.9 billion of capital expenditures for 2021. Included in the authorized capital expenditures is $2.4 billion of capital expenditures to install 4,500 miles of covered conductor between 2019 and 2023 as part of SCE's WCCP.

See "Results of Operations—SCE" and "Notes to Consolidated Financial Statements—Note 11. Regulatory Assets and Liabilities" for further information.

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Wildfire Related Regulatory Proceedings

In response to the increase in wildfire activity, and faster progression of and increased damage from wildfires across SCE's service territory and throughout California, SCE has incurred wildfire mitigation, wildfire insurance and wildfire and drought restoration related spending at levels significantly exceeding amounts authorized in its 2018 GRC. The 2021 GRC decision authorized the establishment of balancing accounts for expenses for vegetation management, wildfire insurance, and the WCCP program, with expenditures up to certain thresholds approved for cost recovery. SCE may submit subsequent reasonableness review applications for any spending in excess of these thresholds. During the 2021 – 2023 GRC period, SCE expects to incur vegetation management expenses and capital expenditures for WCCP in excess of thresholds established in the 2021 GRC. SCE also expects to incur costs in excess of amounts authorized in the 2021 GRC related to other wildfire mitigation activities, including inspections and maintenance and PSPS. SCE will track these incremental amounts in memorandum accounts which will be subject to approval in future regulatory proceedings. For more information see "Business—SCE—Overview of Ratemaking Process."

The following table presents changes in deferred wildfire-related and wildfire and drought restoration expenses during 2021:

​ ​ ​

(in millions) ​ ​

Regulatory deferral ​ 728

These deferred wildfire-related and wildfire and drought restoration expenses include $401 million of operations and maintenance expense authorized for recovery in the GRC track 2 proceeding in January 2021. In January 2022, the CPUC approved SCE's request to recover these costs in customer rates over a 36-month period starting March 2022.

Wildfire Mitigation Plan Memorandum Account

SCE's WMPs describe strategies, programs and activities that are in place, being implemented or are under development by SCE, including associated cost estimates, to reduce the risk of SCE equipment contributing to the ignition of wildfires.

SCE filed updates to its 2020 – 2022 WMP with the CPUC and OEIS in February 2021 and February 2022, respectively. Due to the requirement to file annual updates to the WMP, many, but not all, of the programs and activities described in SCE's 2020 – 2022 WMP including the 2021 and 2022 updates, are part of SCE's 2021 GRC, which was originally filed on a forecast basis in 2019. The WMP memorandum account is used to track costs of WMP activities in excess of amounts authorized in SCE's GRCs.

SCE tracked $133 million and $229 million of expenses in the WMP memorandum account during 2021 and 2020, respectively. WMP capital expenditures not authorized in the 2021 GRC, 2018 GRC or contemplated in the GS&RP proceeding were $114 million and $190 million during 2021 and 2020, respectively.

Expenses from 2020 are subject to reasonableness review through track 3 of the 2021 GRC, described below. Expenses from 2021 and subsequent years are subject to reasonableness review, which SCE expects to be conducted through annual proceedings. SCE plans to file an application for recovery of expenses incurred in 2021 that were above authorized amounts in 2022.

Fire Hazard Prevention Memorandum Account

The FHPMA was established to record the costs incurred related to fire hazard prevention in compliance with decisions

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from the CPUC. Prior to 2021, SCE used the FHPMA to track incremental vegetation management activities undertaken to reduce the risk of fires. In 2021, SCE recorded vegetation management expenses to the vegetation management balancing account established by the 2021 GRC. During 2021, there were no costs recorded in FHPMA.

Expenses from 2018 and 2019 are being recovered in accordance with the GRC track 2 settlement. During 2020, SCE recorded expenses of $252 million in the FHPMA, which are subject to reasonableness review through track 3 of the 2021 GRC, described below.

2021 General Rate Case Wildfire Mitigation Memorandum Account Balances

The 2021 GRC decision provided balancing accounts for cost recovery of up to 115% of authorized vegetation management expenses. SCE has recorded $229 million of 2021 vegetation management expenses above 115% of 2021 GRC authorized levels and tracked in the vegetation management balancing account. Such expenses from 2021 and subsequent years are subject to reasonableness review, which SCE expects to be conducted through annual proceedings.For further information, see "Notes to Consolidated Financial Statements—Note 11. Regulatory Assets and Liabilities."

In March 2021, SCE made its 2021 GRC track 3 filing with the CPUC. In its filing, SCE requested reasonableness review of approximately $1.2 billion of wildfire mitigation costs incurred prior to 2021, consisting of $497 million of incremental operations and maintenance expenses and other costs, and $679 million of incremental capital expenditures. The track 3 expenditures predominantly related to grid hardening, vegetation management, PSPS activities and enhancements to grid operations. The capital expenditures included $502 million of GS&RP capital expenditures not previously subject to settlement.

The $679 million in incremental capital expenditures to be reviewed by the CPUC in track 3 are AB 1054 Excluded Capital Expenditures. After receipt of a final decision in track 3, SCE intends to seek a financing order from the CPUC to securitize these expenses if such expenses are deemed reasonable by the CPUC.

The CPUC schedule for SCE's 2021 GRC includes a proposed decision on track 3 in the first quarter of 2022.

Wildfire Expense Memorandum Account

SCE tracks insurance premium costs related to wildfire liability insurance policies as well as other wildfire-related costs in its WEMA. In December 2020, SCE filed a WEMA application with the CPUC to seek recovery of $215 million of costs recorded in WEMA at December 31, 2020. The costs primarily related to incremental wildfire insurance premium expenses and associated costs for wildfire liability insurance policies that provide coverage for the last six months of 2020. SCE has requested a final decision in the current WEMA proceeding that would allow these costs to be recovered in rates beginning in 2022.

2020 Emergency Wildfire Restoration

Multiple wildfires occurred during 2020 which caused damage within SCE's service territory and to SCE's Big Creek hydroelectric facility. Restoration work is ongoing in relation to these wildfires. SCE expects to file CEMA requests for recovery of approximately $220 million of operation and maintenance expenses and approximately $345 million of capital expenditures incremental to authorized revenue requirements related to these restoration efforts, the majority to be filed in 2022.

2019 CEMA Application

In July 2019, SCE filed a CEMA application with the CPUC to seek recovery of $79 million of operation and maintenance expenses related to 2017 – 2018 drought mitigation efforts and $8 million of revenue requirement

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associated with $60 million of capital expenditures and capital related expenses related to six 2017 wildfires.

In August 2021, the CPUC issued a decision that authorized full recovery of requested drought restoration costs and approved a revenue requirement of $81 million. However, the final decision denied without prejudice SCE's application to recover a revenue requirement of $8 million for all six 2017 wildfires on the basis that SCE did not demonstrate that it was prudent in relation to the Thomas and Rye fires and that SCE had failed to segregate the costs attributable to the other four fires. Of the $8 million revenue requirement that was denied, $6 million was for the Thomas and Rye fires. The decision allows SCE to submit additional applications with the CPUC to recover the costs associated with the Thomas and Rye fires, does not specify a deadline for any such applications and directs that SCE must prove it was prudent in relation to the Thomas and/or Rye fires, as applicable, in any such future applications. As required by the final decision with respect to the other four fires, SCE filed supplemental testimony in November 2021 segregating the restoration costs attributable to each such fire. SCE's updated revenue requirement for these fires is $1.5 million.

As of December 31, 2021, SCE has $186 million recorded in property, plant and equipment in relation to restoration costs related to the 2017/2018 Wildfire/Mudslide Events, which require future regulatory filings before recovery may be allowed. These assets would be impaired if permanently disallowed by the CPUC in future cost recovery proceedings and are currently excluded from authorized rate base, pending further regulatory action.

2021 CEMA Application

In September 2021, SCE filed a CEMA application with the CPUC requesting a revenue requirement of $132 million related to various 2018 – 2020 events, which includes revenue requirements of $69 million related to incremental drought mitigation operation and maintenance expenses incurred from 2019 – 2020 and $58 million related to incremental operation and maintenance expenses related to COVID-19.

ERRA Proceeding

SCE's cost-recovery mechanism for its fuel and purchased power-related costs is primarily facilitated in two main balancing accounts, the ERRA and the PABA. SCE sets rates based on an annual forecast of the costs that it expects to incur during the subsequent year. At December 31, 2021, the ERRA was undercollected by approximately $760 million due to higher gas and power prices. The undercollection in ERRA at September 30, 2021 resulted in SCE triggering an established mechanism requiring SCE to file an application to advise the CPUC that SCE's undercollections had exceeded the trigger amount and request a rate change (See "Business—Overview of Ratemaking Process," for further information). In January 2022 the CPUC approved inclusion of the rate increase with a scheduled rate change in March 2022. SCE expects to finance power procurement-related costs using commercial paper, its credit facilities and other borrowings until rates are adjusted.

2022 FERC Formula Rate Annual Update

SCE filed its 2022 annual update with the FERC in November 2021, with the proposed rate effective January 1, 2022. The update reflected an increase in SCE's transmission revenue requirement of $326 million, 30.0% higher than amounts included in the 2021 annual rates. The increase is primarily due to the portion of charges for wildfire-related claims recorded in 2020 subject to recovery from FERC customers, increased plant in service and recovery of prior year undercollections.

CSRP

In April 2021, SCE implemented a new customer service system, which replaced a majority of SCE's customer systems. During the initial months of post-implementation stabilization of CSRP, SCE experienced operational issues, including delayed customer billings, generally in line with forecasted operational issues. These operational issues are expected to return to normal by the end of third quarter of 2022. SCE has tracked the cost of the CSRP system implementation in a

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memorandum account. Expenditures for the CSRP project were significantly higher than originally projected, approximately $546 million in capital and $63 million in operations and maintenance expenses from inception through 2021.

In July 2021, SCE filed an application with the CPUC requesting approval of $483 million of capital expenditures and $40 million of operations and maintenance expenses recorded in the CSRP memorandum account through April 2021 resulting in revenue requirements of $411 million from 2021 to 2024. SCE plans to seek recovery of costs from May to December 2021 in a future application anticipated to be filed in the second quarter of 2022. The recorded CSRP incremental memo account expenses and capital during 2022 – 2024 will be included for cost recovery in the 2025 GRC Application.

Capital Investment Plan

Major Transmission Projects

A summary of SCE's most significant transmission and substation construction projects during the next two years is presented below. The timing of the projects below is subject to timely receipt of permitting, licensing and regulatory approvals.

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ Direct ​ ​ ​ ​

​ ​ Project ​ Expenditures ​ Inception to Date ​ Scheduled In- ​

Project Name Lifecycle Phase (in millions)1 (in millions)1 Service Date

Mesa Substation Construction ​ $ 661 ​ $ 587 2022 ​

Riverside Transmission Reliability Licensing ​ 584 ​ 25 2026 ​

Alberhill System2 Licensing ​ 486 ​ 46 — 2​

Eldorado-Lugo-Mohave Upgrade Construction ​ 247 ​ 183 2023 ​

Mesa Substation

The Mesa Substation Project consists of replacing the existing 220 kV Mesa Substation with a new 500/220 kV substation. The Mesa Substation Project will address reliability concerns by providing additional transmission import capability, allowing greater flexibility in the siting of new generation, and reducing the total amount of new generation required to meet local reliability needs in the Western Los Angeles Basin area. In October 2019, SCE achieved the first energization of the new substation. SCE plans to have the 500 kV substation in service in the second quarter of 2022.

Riverside Transmission Reliability

The Riverside Transmission Reliability Project is a joint project between SCE and Riverside Public Utilities ("RPU"), the municipal utility department of the City of Riverside. While RPU will be responsible for constructing some of the project's facilities within Riverside, SCE's portion of the project consists of constructing upgrades to its system, including a new 230 kV substation; certain interconnection and telecommunication facilities and transmission lines in the cities of Riverside, Jurupa Valley and Norco and in portions of unincorporated Riverside County. The purpose of the project is to provide RPU and its customers with adequate transmission capacity to serve existing and projected load, to provide for long-term system capacity for load growth, and to provide needed system reliability.

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In September 2020, SCE obtained approval from the FERC for abandoned plant treatment for the project, which allows SCE to seek recovery of 100% of all prudently incurred costs after the approval date and 50% of prudently incurred costs prior to the approval date. SCE plans to begin construction in the second quarter of 2022.

Alberhill System

The Alberhill System Project consists of constructing a new 500 kV substation, two 500 kV transmission lines to connect the proposed substation to the existing Serrano-Valley 500 kV transmission line, telecommunication equipment and subtransmission lines in western Riverside County. The project was designed to meet long-term forecasted electrical demand in the proposed Alberhill System Project area and to increase electrical system reliability and resiliency. In April 2018 and July 2018, the CPUC issued a proposed decision and an alternate proposed decision, both denying SCE's ability to construct the Alberhill System Project based on a perceived lack of need. SCE filed comments on both proposed decisions requesting that the CPUC grant the certificate of public convenience and necessity ("CPCN") for the Alberhill System Project. In August 2018, the CPUC issued a decision that did not deny or approve the Alberhill System Project but directed SCE to submit supplemental information on the Alberhill System Project including but not limited to a load forecast and cost benefit analysis of several alternatives to the proposed project. Ongoing capital spending has been deferred as a result of the CPUC request for additional information. In January 2020, SCE submitted a supplemental analysis to the CPUC for the Alberhill System Project including several alternatives to the proposed project as well as an update to the original project cost. A final decision on the Alberhill System Project remains pending. Given the uncertainty associated with the resolution of the permitting process, potential revisions to the project have not been reflected in total direct expenditures. SCE continues to believe a system solution is needed for the project area but is unable to predict the timing of a final CPUC decision in connection with the Alberhill System Project proceeding.

Approximately 48% of the Alberhill System Project costs spent to date would be subject to recovery through CPUC revenue and 52% through FERC revenue. In October 2017, SCE obtained approval from the FERC for abandoned plant treatment for the Alberhill System Project, which allows SCE to seek recovery of 100% of all prudently incurred costs after the approval date and 50% of prudently incurred costs prior to the approval date. Excluding land costs, which may be recovered through sale to a third party, SCE has incurred approximately $55 million of capital expenditures, including overhead costs, as of December 31, 2021, of which approximately $39 million may not be recoverable if the project is cancelled.

Eldorado-Lugo-Mohave Upgrade

The Eldorado-Lugo-Mohave Upgrade Project will increase capacity on existing transmission lines to allow additional renewable energy to flow from Nevada to southern California. The project would modify SCE's existing Eldorado, Lugo, and Mohave electrical substations to accommodate the increased flows from Nevada to southern California; increase the power flow through the existing 500 kV transmission lines by constructing two new capacitors along the lines; raise transmission tower heights to meet ground clearance requirements; and install fiber optics on the transmission lines to provide communications between existing SCE substations. In August 2020, the CPUC approved the CPCN for the project.

Construction for the project began in November 2020 and the project is expected to be operational in the second quarter of 2023. SCE has revised the commercial operation date from 2022 due to delayed construction start date pending approvals from the Bureau of Land Management and the National Park Service, and due to shortages of foam insulation material caused by production delays within the United States resulting from the COVID-19 pandemic and extreme winter conditions in early 2021.

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Other Capital Investment Projects and Programs

For a discussion of utility owned storage and Grid Development Electrification Programs, see "Management Overview—Capital Program" and "— Electricity Industry Trends." For a discussion of Grid Development for Wildfire Mitigation, see "—Regulatory Proceedings—Wildfire Related Regulatory Proceedings."

Decommissioning of San Onofre

The decommissioning of a nuclear plant requires the management of three related activities: radiological decommissioning, non-radiological decommissioning and the management of spent nuclear fuel. SCE has engaged a decommissioning general contractor to undertake a significant scope of decommissioning activities for Units 1, 2 and 3 at San Onofre. The decommissioning of San Onofre is expected to take many years.

Under federal law, the DOE is responsible for the selection and construction of a facility for the permanent disposal of spent nuclear fuel and high-level radioactive waste. The DOE has not met its contractual obligation to accept spent nuclear fuel. Extended delays by the DOE have led to the construction of costly alternatives and associated siting and environmental issues.

Two Independent Spent Fuel Storage Installations ("ISFSI") store nuclear fuel at San Onofre. The first primarily stores nuclear fuel from Unit 1 ("ISFSI 1") and the second stores nuclear fuel from Units 2 and 3 ("ISFSI 2"). In March 2022, SCE will submit an application to the CCC to amend SCE's CDP for Unit 1 to extend the permit from November 2022 to November 2035. SCE's CDP for ISFSI 2 extends through 2035.

Decommissioning of San Onofre Unit 1 began in 1999 and the transfer of spent nuclear fuel from Unit 1 to dry cask storage in ISFSI 1 was completed in 2005. Major decommissioning work for Unit 1 has been completed except for certain underground work.

Decommissioning of San Onofre Units 2 and 3 began in June 2013 and the transfer of spent nuclear fuel from San Onofre Units 2 and 3 to dry cask storage in the two ISFSIs was completed in August 2020. In October 2019, the CCC approved SCE's application for a CDP, the principal discretionary permit required to start major decommissioning activities at San Onofre Units 2 and 3. In August 2020, SCE commenced, and is currently conducting, major decommissioning activities in accordance with the terms of the permit. The CCC's issuance of the permit was challenged in December 2019 and an October 2021 Los Angeles Superior Court ruling upholding the validity of the permit has been appealed.

In the third quarter of 2021, SCE updated its decommissioning cost estimate for decommissioning activities to be completed at San Onofre Units 2 and 3 to $3.4 billion (SCE share is $2.6 billion) in 2021 dollars. The decommissioning cost estimate included costs through the expected decommissioning completion date, currently estimated to be in 2053 for San Onofre Units 2 and 3. SCE will file its updated decommissioning cost estimate with the CPUC by May 2022. Decommissioning cost estimates are subject to a number of uncertainties including the cost and timing of nuclear waste disposal, the time it will take to obtain required permits, cost of removal of property, site remediation costs, as well as a number of other assumptions and estimates, including when the federal government will provide for either interim or permanent off-site storage of spent nuclear fuel enabling the removal and transport of spent fuel canisters from the San Onofre site, as to which there can be no assurance. Cost estimates are subject to change as decommissioning proceeds and such changes may be material.

SCE's share of the San Onofre Units 2 and 3 decommissioning costs recorded during 2021 were $236 million (in 2021 dollars). The CPUC conducts a reasonableness review of recorded decommissioning costs.

SCE had nuclear decommissioning trust funds for San Onofre Units 2 and 3 of $2.8 billion as of December 31, 2021. Based upon the resolution of a number of uncertainties, including the uncertainties of decommissioning discussed above,

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the financial performance of the nuclear decommissioning trust fund investments, as well as the resolution of a number of other assumptions and estimates, additional contributions to the nuclear decommissioning trust funds may be required. If additional contributions to the nuclear decommissioning trust funds become necessary, SCE will seek recovery of such additional funds through electric rates and any such recovery will be subject to a reasonableness review by the CPUC. Cost increases resulting from contractual disputes, delays in performance by the contractor, elevated levels of inflation, or permitting delays, among other things, could cause SCE to materially overrun the decommissioning cost estimate and could materially impact the sufficiency of trust funds. In December 2021, the CPUC approved disbursements from SCE's nuclear decommissioning trusts to cover forecasted 2022 decommissioning costs for San Onofre Units 2 and 3, of which SCE's share is $290 million in 2022 dollars.

SCE Dividends

CPUC holding company rules require that SCE's dividend policy be established by SCE's Board of Directors on the same basis as if SCE were a stand-alone utility company, and that the capital requirements of SCE, as deemed to be necessary to meet SCE's electricity service obligations, shall receive first priority from the Boards of Directors of both Edison International and SCE. In addition, the CPUC regulates SCE's capital structure which limits the dividends it may pay to its shareholders.

Effective January 1, 2020, the common equity component of SCE's CPUC authorized capital structure was increased from 48% to 52% on a weighted average basis over the January 1, 2020 to December 31, 2022 compliance period. For further information, see "Business—SCE—Overview of Ratemaking Process." Certain amounts, including the impact of SCE's contributions to the Wildfire Insurance Fund under AB 1054, are excluded from the measurement of SCE's CPUC-jurisdictional authorized capital structure. For further information, see "Business—Southern California Wildfires."

The CPUC authorized capital structure differs from the capital structure calculated based on GAAP due to certain exclusions allowed by CPUC. In May 2020, the CPUC issued a decision on SCE's application to the CPUC for waiver of compliance with its equity ratio requirement, that allows SCE to exclude from its equity ratio calculations (i) net charges accrued in connection with the 2017/2018 Wildfire/Mudslide Events and (ii) debt issued for the purpose of paying claims related to the 2017/2018 Wildfire/Mudslide Events up to an amount equal to the net charges accrued in connection with the 2017/2018 Wildfire/Mudslide Events. The temporary exclusion will lapse on May 7, 2022 and SCE anticipates filing another application for waiver of compliance with its equity ratio requirement in April 2022. Under the CPUC's rules, SCE will not be deemed to be in violation of the equity ratio requirement while the waiver application is pending resolution. While the exclusion is in place, SCE is required to notify the CPUC if an adverse financial event reduces SCE's spot equity ratio by more than one percent from the level most recently filed with the CPUC in the proceeding. The last spot equity ratio SCE filed with the CPUC in the proceeding did not exclude the then $1.8 billion net charge and was 45.2% as of December 31, 2018 (at the time the common equity component of SCE's CPUC authorized capital structure was required to remain at or above 48% on a weighted average basis over the applicable 37-month period). SCE's spot equity ratio on December 31, 2018 would have been 48.7% had the $1.8 billion net charge at December 31, 2018 been excluded, therefore SCE will notify the CPUC if its spot ratio drops below 47.7% in any quarter. For further information, see "Notes to Consolidated Financial Statements—Note 12. Commitments and Contingencies—Contingencies—Southern California Wildfires and Mudslides."

SCE monitors its compliance with the CPUC's equity ratio requirement based on the weighted average of the common equity component of SCE's CPUC authorized capital structure over the Capital Structure Compliance Period using its actual capital structure from the beginning of the Capital Structure Compliance Period through the reporting date together with forecasted performance and expected financing activities for the remainder of the Capital Structure Compliance Period. SCE expects to be compliant with its CPUC authorized capital structure at December 31, 2022.

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SCE's ability to declare and pay common dividends may be restricted under the terms of its outstanding series of preference stock. For further information see "Notes to Consolidated Financial Statements—Note 14. Equity."

As a California corporation, SCE's ability to pay dividends is also governed by the California General Corporation Law. California law requires that for a dividend to be declared: (a) retained earnings must equal or exceed the proposed dividend, or (b) immediately after the dividend is made, the value of the corporation's assets must exceed the value of its liabilities plus amounts required to be paid, if any, in order to liquidate stock senior to the shares receiving the dividend. Additionally, a California corporation may not declare a dividend if it is, or as a result of the dividend would be, likely to be unable to meet its liabilities as they mature. Prior to declaring dividends, SCE's Board of Directors evaluates available information, including when applicable, information pertaining to the 2017/2018 Wildfire/Mudslide Events, to ensure that the California law requirements for the declarations are met. On February 24, 2022, SCE declared a dividend to Edison International of $325 million.

The timing and amount of future dividends are also dependent on a number of other factors including SCE's requirements to fund other obligations and capital expenditures, its ability to access the capital markets, and generate operating cash flows and earnings. If SCE incurs significant costs related to catastrophic wildfires, including the 2017/2018 Wildfire/Mudslide Events, and is unable to recover such costs through insurance, the Wildfire Insurance Fund (for fires after July 12, 2019), or from customers or is unable to access capital markets on reasonable terms, SCE may be limited in its ability to pay future dividends to Edison International and its preference shareholders.

Margin and Collateral Deposits

Certain derivative instruments, power and energy procurement contracts and other contractual arrangements contain collateral requirements. In addition, certain environmental remediation obligations require financial assurance that may be in the form of collateral postings. Future collateral requirements may differ from the requirements at December 31, 2021 due to the addition of incremental power and energy procurement contracts with collateral requirements, if any, the impact of changes in wholesale power and natural gas prices on SCE's contractual obligations, and the impact of SCE's credit ratings falling below investment grade.

The table below provides the amount of collateral posted by SCE to its counterparties as well as the potential collateral that would have been required as of December 31, 2021, if SCE's credit rating had been downgraded to below investment grade as of that date. The table below also provides the potential collateral that could be required due to adverse changes in wholesale power and natural gas prices over the remaining lives of existing power and energy procurement contracts.

In addition to amounts shown in the table, power and fuel contract counterparties may also institute new collateral requirements, applicable to future transactions to allow SCE to continue trading in power and fuel contracts at the time of a downgrade or upon significant increases in market prices. Furthermore, SCE may also be required to post up to $50 million in collateral in connection with its environmental remediation obligations, within 120 days of the end of the fiscal year in which the downgrade occurs.

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​ ​ ​ ​

(in millions) ​ ​

Posted and potential collateral requirements ​ $ 405

1 Net collateral provided to counterparties and other brokers consisted of $201 million in letters of credit and surety bonds and $65 million of cash collateral, of which $16 million was offset against derivative liabilities and $49 million was reflected in "Other current assets" on the consolidated balance sheets.

2 Represents potential collateral requirements for accounts payable and market-to-market valuation at December 31, 2021. Requirement varies throughout the period and is generally lower at the end of the month.

3 Incremental collateral requirements were based on potential changes in SCE's forward positions as of December 31, 2021 due to adverse market price movements over the remaining lives of the existing power contracts using a 95% confidence level.

Edison International Parent and Other

In the next 12 months, Edison International expects to fund its net cash requirements through cash on hand, dividends from SCE, and equity issuances and bank financings. Edison International may finance its ongoing cash requirements, including common stock dividends, working capital requirements, payment of obligations, and capital investments, including capital contributions to subsidiaries, with short-term or other financings, subject to availability in the bank and capital markets.

Source: SEC EDGAR (public domain) · 10-K for the period ended 2021-12-31, filed 2022-02-24 · accession 0000827052-22-000006

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