Edison International Reports First Quarter 2021 Results

• First Quarter 2021 GAAP EPS of $0.68; Core EPS of $0.79
• SCE continues to upgrade its infrastructure and invest in new technologies to prevent wildfires

Edison International EIX today reported first quarter 2021 net income of $259 million, or $0.68 per share, compared to net income of $183 million, or $0.50 per share, in the first quarter 2020. As adjusted, first quarter 2021 core earnings were $301 million, or $0.79 per share, compared to core earnings of $228 million, or $0.63 per share, in the first quarter 2020.

Southern California Edison's (SCE) first quarter 2021 core earnings per share (EPS) increased year-over-year primarily due to lower expenses related to wildfire mitigation activities and employee benefits. Wildfire mitigation expenses were lower in the first quarter primarily because fewer remediations were identified through the inspection process. These were partially offset by the increase in shares outstanding mainly associated with the equity offering in May 2020.

Edison International Parent and Other's first quarter 2021 loss per share of $0.10 was unchanged compared to first quarter 2020.

"SCE continues to invest in its infrastructure and new technologies to reduce the risk of fires associated with electric infrastructure, increase accuracy in fire weather forecasting, enhance its operational practices, and improve its Public Safety Power Shutoff program," said Pedro J. Pizarro, president and CEO of Edison International. "The utility is accelerating the pace of covered conductor deployment and by year-end expects to have hardened over 25% of all its overhead distribution infrastructure in high fire risk areas and substantially reduced the risk of wildfires associated with utility equipment."

Pizarro added, "Looking ahead, a successful transition to a clean energy economy will place greater demands on electrical infrastructure and require significant incremental investments. As highlighted in SCE's Pathway 2045 analysis, the least expensive way to achieve economywide decarbonization is through an equitable clean energy future with increasing amounts of carbon-free generation powering the further electrification of the economy."

Edison International uses core earnings, which is a non-GAAP financial measure that adjusts for significant discrete items that management does not consider representative of ongoing earnings. Edison International management believes that core earnings provide more meaningful comparisons of performance from period to period. Please see the attached tables for a reconciliation of core earnings to basic GAAP earnings.

2021 Earnings Guidance

Edison International will provide 2021 earnings guidance after a final decision has been adopted by the CPUC on the Southern California Edison 2021 GRC, consistent with the company's prior practice.

First Quarter 2021 Earnings Conference Call and Webcast Details

Edison International has posted its earnings conference call prepared remarks by the CEO and CFO, the teleconference presentation, and Form 10-Q to the company's investor relations website. These materials are available at www.edisoninvestor.com.

About Edison International

Edison International EIX is one of the nation's largest electric utility holding companies, providing clean and reliable energy and energy services through its independent companies. Headquartered in Rosemead, California, Edison International is the parent company of Southern California Edison Company, a utility that delivers electricity to 15 million people across Southern, Central and Coastal California. Edison International is also the parent company of Edison Energy, a global energy advisory company delivering comprehensive, data-driven energy solutions to commercial and industrial users to meet their cost, sustainability and risk goals.

Appendix

Use of Non-GAAP Financial Measures

Edison International's earnings are prepared in accordance with generally accepted accounting principles used in the United States and represent the company's earnings as reported to the Securities and Exchange Commission. Our management uses core earnings and core earnings per share (EPS) internally for financial planning and for analysis of performance of Edison International and Southern California Edison. We also use core earnings and core EPS when communicating with analysts and investors regarding our earnings results to facilitate comparisons of the Company's performance from period to period. Financial measures referred to as net income, basic EPS, core earnings, or core EPS also apply to the description of earnings or earnings per share.

Core earnings and core EPS are non-GAAP financial measures and may not be comparable to those of other companies. Core earnings and core EPS are defined as basic earnings and basic EPS excluding income or loss from discontinued operations and income or loss from significant discrete items that management does not consider representative of ongoing earnings. Basic earnings and losses refer to net income or losses attributable to Edison International shareholders. Core earnings are reconciled to basic earnings in the attached tables. The impact of participating securities (vested awards that earn dividend equivalents that may participate in undistributed earnings with common stock) for the principal operating subsidiary is not material to the principal operating subsidiary's EPS and is therefore reflected in the results of the Edison International holding company, which is included in Edison International Parent and Other.

Safe Harbor Statement

Statements contained in this presentation about future performance, including, without limitation, operating results, capital expenditures, rate base growth, dividend policy, financial outlook, and other statements that are not purely historical, are forward-looking statements. These forward-looking statements reflect our current expectations; however, such statements involve risks and uncertainties. Actual results could differ materially from current expectations. These forward-looking statements represent our expectations only as of the date of this presentation, and Edison International assumes no duty to update them to reflect new information, events or circumstances. Important factors that could cause different results include, but are not limited to the:

• ability of SCE to recover its costs through regulated rates, including uninsured wildfire-related and debris flow-related costs, costs incurred to mitigate the risk of utility equipment causing future wildfires, costs incurred to implement SCE's new customer service system and costs incurred as a result of the COVID-19 pandemic;
• ability of SCE to implement its Wildfire Mitigation Plan;
• risks of regulatory or legislative restrictions that would limit SCE's ability to implement Public Safety Power Shutoff ("PSPS") when conditions warrant or would otherwise limit SCE's operational PSPS practices;
• risks associated with implementing PSPS, including regulatory fines and penalties, claims for damages and reputational harm;
• ability of SCE to maintain a valid safety certification;
• ability to obtain sufficient insurance at a reasonable cost, including insurance relating to SCE's nuclear facilities and wildfire-related claims, and to recover the costs of such insurance or, in the event liabilities exceed insured amounts, the ability to recover uninsured losses from customers or other parties;
• extreme weather-related incidents (including events caused, or exacerbated, by climate change, such as wildfires, debris flows, high wind events and extreme heat events) and other natural disasters (such as earthquakes), which could cause, among other things, public safety issues, property damage, operational issues (such as rotating outages and issues due to damaged infrastructure), PSPS activations and unanticipated costs;
• risks associated with California Assembly Bill 1054 ("AB 1054") effectively mitigating the significant risk faced by California investor-owned utilities related to liability for damages arising from catastrophic wildfires where utility facilities are alleged to be a substantial cause, including the longevity of the Wildfire Insurance Fund and the CPUC's interpretation of and actions under AB 1054, including its interpretation of the new prudency standard established under AB 1054;
• decisions and other actions by the California Public Utilities Commission, the Federal Energy Regulatory Commission, the Nuclear Regulatory Commission and other governmental authorities, including decisions and actions related to nationwide or statewide crisis, determinations of authorized rates of return or return on equity, the recoverability of wildfire-related and debris-flow-related costs, issuance of SCE's wildfire safety certification, wildfire mitigation efforts, and delays in executive, regulatory and legislative actions;
• ability of Edison International or SCE to borrow funds and access bank and capital markets on reasonable terms;
• risks associated with the decommissioning of San Onofre, including those related to worker and public safety, public opposition, permitting, governmental approvals, on-site storage of spent nuclear fuel, delays, contractual disputes, and cost overruns;
• pandemics, such as COVID-19, and other events that cause regional, statewide, national or global disruption, which could impact, among other things, Edison International's and SCE's business, operations, cash flows, liquidity and/or financial results and cause Edison International and SCE to incur unanticipated costs;
• physical security of Edison International's and SCE's critical assets and personnel and the cybersecurity of Edison International's and SCE's critical information technology systems for grid control, and business, employee and customer data;
• risks associated with cost allocation resulting in higher rates for utility bundled service customers because of possible customer bypass or departure for other electricity providers such as Community Choice Aggregators ("CCA," which are cities, counties, and certain other public agencies with the authority to generate and/or purchase electricity for their local residents and businesses) and Electric Service Providers (entities that offer electric power and ancillary services to retail customers, other than electrical corporations (like SCE) and CCAs);
• risks inherent in SCE's transmission and distribution infrastructure investment program, including those related to project site identification, public opposition, environmental mitigation, construction, permitting, power curtailment costs (payments due under power contracts in the event there is insufficient transmission to enable acceptance of power delivery), changes in the California Independent System Operator's transmission plans, and governmental approvals; and
• risks associated with the operation of transmission and distribution assets and power generating facilities, including worker and public safety issues, the risk of utility assets causing or contributing to wildfires, failure, availability, efficiency, and output of equipment and facilities, and availability and cost of spare parts.

Additional information about risks and uncertainties, including more detail about the factors described in this report, is contained throughout this report and in the 2020 Form 10-K, including the "Risk Factors" section. Readers are urged to read this entire report, including information incorporated by reference, as well as the 2020 Form 10-K, and carefully consider the risks, uncertainties, and other factors that affect Edison International's and SCE's businesses. Edison International and SCE post or provide direct links (i) to 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) to 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) to presentations, documents and other information that may be of interest to investors in a section title "Presentations" at www.edisoninvestor.com in order to publicly disseminate such information.

These forward-looking statements represent our expectations only as of the date of this news release, and Edison International assumes no duty to update them to reflect new information, events or circumstances. Readers should review future reports filed by Edison International and SCE with the SEC.

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