Exhibit 99.1

OCTOBER 29, 2024 BUSINESS UPDATE

Edison International | October 2024 Business Update 1 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, timely or at all, including uninsured wildfire-related and debris flow-related costs (including amounts paid for self-insured retention and co-insurance), costs incurred to mitigate the risk of utility equipment causing future wildfires, and increased costs due to supply chain constraints, inflation and rising interest rates; • impact of affordability of customer rates on SCE's ability to execute its strategy, including the impact of affordability on the regulatory approval of operations and maintenance expenses, and proposed capital investment projects; • ability of SCE to implement its operational and strategic plans, including its Wildfire Mitigation Plan and capital investment program; • risks of regulatory or legislative restrictions that would limit SCE's ability to implement operational measures to mitigate wildfire risk, including Public Safety Power Shutoff (“PSPS”) and fast curve settings, when conditions warrant or would otherwise limit SCE's operational practices relative to wildfire risk mitigation; • ability of SCE to obtain safety certifications from the Office of Energy Infrastructure Safety of the California Natural Resources Agency (“OEIS”) • risk that California Assembly Bill 1054 (“AB 1054“) does not effectively mitigate the significant exposure 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 California Public Utilities Commission (“CPUC”) interpretation of and actions under AB 1054, including its interpretation of the prudency standard clarified by AB 1054; • risks associated with the operation of electrical 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; • 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; • ability of Edison International and SCE to effectively attract, manage, develop and retain a skilled workforce, including its contract workers; • decisions and other actions by the CPUC, the Federal Energy Regulatory Commission, and the United States Nuclear Regulatory Commission and other governmental authorities, including decisions and actions related to nationwide or statewide crisis, approval of regulatory proceeding settlements, 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, approval and implementation of electrification programs, and delays in executive, regulatory and legislative actions; • potential for penalties or disallowances for non-compliance with applicable laws and regulations, including fines, penalties and disallowances related to wildfires where SCE's equipment is alleged to be associated with ignition; • extreme weather-related incidents (including events caused, or exacerbated, by climate change, such as wildfires, debris flows, flooding, droughts, high wind events and extreme heat events) and other natural disasters (such as earthquakes), which could cause, among other things, worker and public safety issues, property damage, rotating outages and other operational issues (such as issues due to damaged infrastructure), PSPS activations and unanticipated costs; • cost and availability of labor, equipment and materials, including as a result of supply chain constraints and inflation; • 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 and other radioactive material, delays, contractual disputes, and cost overruns; • 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 capital investment program, including those related to project site identification, public opposition, environmental mitigation, construction, permitting, contractor performance, changes in the California Independent System Operator’s transmission plans, and governmental approvals; and • actions by credit rating agencies to downgrade Edison International or SCE’s credit ratings or to place those ratings on negative watch or negative outlook. Other important factors are discussed under the headings “Forward-Looking Statements”, “Risk Factors” and “Management’s Discussion and Analysis” in Edison International’s Form 10-K and other reports filed with the Securities and Exchange Commission, which are available on our website: www.edisoninvestor.com. These filings also provide additional information on historical and other factual data contained in this presentation. Forward-Looking Statements

Edison International | October 2024 Business Update 2 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Edison International leads the transformation of the electric power industry One of the nation’s largest electric-only utilities, with over 5 million customer accounts in 50,000 square-mile service area EIX’s principal subsidiary, with $38–43 billion 2023–2028 electric infrastructure investment opportunity Growth driven by investment in strengthening and modernizing the grid and advancing California’s aggressive climate goals Wires-focused rate base, with limited power generation ownership (<20% of power delivered from owned generation) Partners with large commercial, industrial, and institutional organizations to navigate the energy transition by providing integrated energy management and sustainability solutions Clients include 50 of the world’s largest companies Focused on opportunities in clean energy, advancing electrification, building a modernized and more reliable grid, and enabling customers’ technology choices $32+ billion Market capitalization 125,000+ Miles of SCE T&D lines ~$43 billion SCE rate base >15 million Residents served 14,000+ Employees

Edison International | October 2024 Business Update 3 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Thesis: Wires-focused utility with rate base growth aligned with state’s aggressive clean energy goals Constructive California and Federal regulatory structures Aggressive climate goals met with clean, efficient, economy-wide electrification Significant investment required to ensure the grid is reliable, resilient, and ready for widespread electrification Investment in electric-led clean energy future results in strong rate base and dividend growth Decoupling of sales Forward-looking ratemaking Premium California ROE Wildfire prudency standard California GHG reduction Helping customers make clean energy choices Address wildfire risk and climate adaptation needs Infrastructure replacement Electrification infrastructure 6–8% 2023–2028 rate base CAGR Target dividend payout of 45–55% of SCE core earnings

Edison International | October 2024 Business Update 4 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix EIX well positioned for a decarbonized future; no coal or gas LDC exposure and high electric sales growth potential UTY1 EEI Index2 Electric-Only Utility & No Gas LDC Exposure (# of Companies) 5 of 201 12 of 39 ✓ No stranded asset risk with increased electrification No Coal Generation Ownership (# of Companies) 7 of 21 10 of 39 ✓ No coal generation or contracts in SCE’s portfolio Net-zero commitments across scopes 1, 2, and 3 by 20453 (# of Companies) 1 of 21 3 of 39 ✓ EIX’s net-zero commitment is strongly aligned with California’s ambitious climate goals Electric Sales per Customer (MWh/year)4 12–40 Avg: 24 12–57 Avg: 25 15 Relatively low per-customer usage will grow with electrification, which supports affordability 1. PHLX Utility Sector Index (UTY) consists of 21 geographically diverse public utility stocks, including one water utility. Values shown include EIX. Total company count for "electric-only utility & no gas LDC exposure" excludes Constellation Energy, which does not have any regulated utility operations 2. EEI Index consists of 39 publicly traded companies that are members of Edison Electric Institute, which includes 18 of the companies also in UTY. Values shown include EIX 3. Counts reflect companies with net-zero commitments by 2045 or sooner that are wholly inclusive of the company’s scopes 1, 2, and 3 greenhouse gas emissions profile 4. Refers to total customer base, including residential, commercial, and industrial customers. Based on latest available data for year ended 2023. Excludes Constellation Energy, which does not have any regulated utility operations Source: EIX research, S&P Capital IQ Pro

Edison International | October 2024 Business Update 5 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Sustainability at the core of Edison’s vision to lead the transformation of the electric power industry 2045 goals: net-zero GHG emissions across Scopes 1, 2, and 3; 100% carbon-free power delivered (~51% in 2023)1 Nearly $2 billion portfolio of programs to expand transportation electrification Winner of SEPA’s 2024 Policy Power Player of the Year Award for clean energy leadership and innovation Winner of EEI’s Edison Award for innovative suite of Transportation Electrification programs Committed to SCE vehicle fleet electrification goals by 2030 Highest level governance score from ISS Independent board chair since 2016; 1 of only 6 UTY companies with independent board chair2 8 of 11 directors diverse by gender, race/ethnicity, and/or LGBTQ+ self-ID; gender parity for independent directors 50% of executive annual incentive pay tied to safety & resiliency-related goals for 2024 CPA-Zicklin “Trendsetter” with 100% score in multiple years for political accountability and disclosure3 Recipient of several awards for workplace diversity & inclusion Long-standing community partnerships, including $2.3 billion annual spend with diverse suppliers Lowest system average rate among major California investor-owned utilities Committed to gender parity in executive roles by 2030 and broader DEI actions $20 million per year in philanthropic contributions with at least 80% going to diverse and underserved communities Committed to achieving net-zero GHG emissions by 2045. Also have long-term ESG goals for clean energy, electrification, DEI, and safety 1. Net zero goal is enterprise-wide. Delivered power goal is SCE-specific and percentages refer to power delivered to SCE customers. Reflects no coal generation of delivered electricity 2. UTY refers to the PHLX Utility Sector Index, which consists of 21 geographically diverse public utility stocks 3. Edison International is recognized as a “Trendsetter” on the Center for Public Accountability (“CPA”)-Zicklin Index of Corporate Political Disclosure and Accountability. The Trendsetter category highlights leaders in the S&P 500 for commitments to transparency and accountability in political spending Environmental Social Governance

Edison International | October 2024 Business Update 6 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix California’s regulatory mechanisms provide revenue certainty Revenue Decoupling means earnings aren’t affected by changes in electricity sales Long-standing regulatory mechanism that breaks the link between retail electricity sales and revenue; promotes energy efficiency, helps stabilize customer bills, and supports environmental goals Changes in sales only affect timing of cash collection Balancing Accounts allow SCE to collect and refund differences to authorized revenue SCE has several balancing accounts, including for variances in sales volume, such as those related to weather Balancing account established for incremental residential uncollectibles Forecast Ratemaking reduces regulatory lag Four-year GRC cycle with forward-looking test year and attrition year increases CPUC has historically authorized mechanism that gives SCE opportunity to offset some inflationary price increases based on utility-specific indices Cost of capital proceedings on three-year cycle separate from GRC with mechanism to reasonably adjust cost of capital if market conditions change significantly during cycles

CLEAN ENERGY TRANSITION LEADERSHIP

Edison International | October 2024 Business Update 8 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Reaching California’s 2045 GHG goals requires a near-complete transformation of energy use economy wide 100% of grid sales with carbon-free electricity ~90 GW of add’l utility-scale clean generation ~25 GW of add’l utility-scale energy storage >15 GW each of add’l behind-the-meter solar and storage Zero emission appliance regulations expected to drive >95% building electrification 98% and 90% of commercial water and space heating to be electrified by 2045, respectively 90% of light-duty vehicles need to be electric 90% of medium-duty vehicles need to be electric 54% of heavy-duty vehicles need to be electric 20% and 13% of pipeline natural gas volume to be hydrogen and RNG, respectively 37% of heavy-duty vehicles to be hydrogen fuel cell vehicles 20% of buses to be hydrogen fuel cell vehicles Edison is partnering with state and federal governments and with other stakeholders to advance policies that rapidly cut GHG emissions in a feasible way 25 MMT from carbon capture and storage (point source) 25 MMT from natural and working lands 25 MMT from other (e.g., direct air capture) DECARBONIZE ELECTRICITY ELECTRIFY TRANSPORTATION ELECTRIFY BUILDINGS USE LOW-CARBON FUELS SINK REMAINING CARBON 100% RETAIL SALES 90% OF VEHICLES 95% OF BUILDINGS 48% NON-ELECTRIC ENERGY 75 MMT CARBON SINK

Edison International | October 2024 Business Update 9 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Neutralize remaining emissions: Mostly from natural gas generation supporting reliability and affordability EIX is directly contributing to California’s clean energy transition by taking steps to reach net zero Deliver Carbon-Free Power to SCE’s Customers: Increase clean power procurement and decrease natural gas generation use, in line with commitment to deliver 100% carbon-free power by 2045 1 2 3 Reduce Operational Emissions: Engaging vendors to reduce supply chain emissions, phasing out older technology, and continuing to electrify vehicle fleet Source: EIX’s Reaching Net Zero analysis. See EIX’s Reaching Net Zero paper for additional information on the analysis and its methodology 10.3 (7.2) (1.1) (2.0) 2020 Emissions Power Delivery-related Operational Neutralized Our Net-Zero Action Plan Reducing Scope 1, 2, and 3 Emissions Reaching net-zero GHG Emissions by 2045 GHG Emissions Reductions by 2045 (MMT CO2e) Net Zero by 2045

Edison International | October 2024 Business Update 10 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Load growth of 80% by 2045 requires a significant acceleration in grid expansion Source: SCE’s Countdown to 2045 analysis. See Countdown to 2045 Appendices for additional information on the analysis and its methodology CAISO Grid Investment 2033–2045 At least half of incremental grid investment fits squarely within IOU jurisdictions Incremental CAISO-wide grid investment ~$125 billion (2023$) Transmission for Out-of-State Imports ISO Interconnections Distribution Subtransmission Infrastructure to interconnect and integrate resources May be mix of investment by utilities, generators, and other market participants Utility infrastructure additions and upgrades Predominantly investments by utilities in their service areas New transmission and distribution grid projects need to be added at up to 4x and 10x historical rates, respectively SCE expects distribution system to be 25% larger by 2045 – Equivalent of 85 new distribution substations – Upgrades to 345 of 900 existing substations – 1,400 new distribution circuits (30% more than today) +20,000 circuit miles of 500 kV transmission CAISO-wide to interconnect new resources

Edison International | October 2024 Business Update 11 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix 2023 2045 By 2045, electricity demand is projected to rise by over 80% from today, primarily due to electrification Households will benefit from these savings well before 2045, with the average SCE household expected to see more than 10% savings by the early 2030s Household savings driven by reduced fossil fuel expenses more than offsetting increase in electricity expense Improvements in equipment efficiency, energy efficiency, and demand response programs reduce consumption Adoption of electrified technologies results in significant savings for average SCE customer household 1. Reflects annual energy expenses using SCE data. Vehicles and appliance costs are not included. Assumes the average SCE customer in 2045 would have electric vehicle, solar, and electric water and space heating 2. Reflects the proportion of household income spent on energy. For 2045, projected median household income based on historical growth rates, then normalized to 2023$ Source: SCE’s Countdown to 2045 analysis Annual residential household energy expenses (2023$)1 Total annual energy expenses for the average SCE customer household decreases by ~40% by 2045 $3,880 $6,680 Home Solar Electricity Bill Home Gas Bill Gasoline Share of wallet2 >7% <3%

Edison International | October 2024 Business Update 12 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix 0% 2% 4% 6% 8% 10% 12% 14% Mississippi Alabama West Virginia Montana South Dakota Arkansas Kentucky South Carolina Oklahoma Wyoming Maine Louisiana Missouri Texas Tennessee Nevada New Mexico North Carolina Delaware Connecticut Arizona Indiana Vermont Michigan New Hampshire Wisconsin Georgia North Dakota Ohio Idaho Nebraska Florida Iowa Kansas Pennsylvania Rhode Island Virginia Oregon Colorado Illinois Minnesota Massachusetts SCE Maryland Utah Washington New York New Jersey Total energy share of wallet in SCE’s service area below median and can decrease with higher levels of electrification 2023 Est. Avg. Residential Customer Share of Wallet (% of Income)1 For customers of Electricity Nat. Gas Gasoline large utilities in: Electricity and energy share of wallet in SCE’s service area compare favorably to those in other states 1. EIX analysis and assumptions based on representative utilities in each state, median household income data from U.S. Census Bureau, electricity expenditure data from EIA, natural gas expenditure data from AGA and EIA, gasoline price data from EIA, and gasoline consumption calculated from vehicles per household from the US Census, vehicle-miles traveled per vehicle from FHWA Highway Statistics Series, and gas mileage from Bureau of Transportation Statistics

Edison International | October 2024 Business Update 13 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix 2019–2023 rate increases largely driven by external events % of Total Increase 2019–2024: SCE’s rate trend outpaced inflation (~12% vs. ~4%) 5 10 15 20 25 30 1990 '95 '00 '05 '10 '15 '20 Rate increases below local inflation for 30 years. External drivers largely drove 2019–2024 rate trend 1990–2019 SCE’s rates trend below local inflation for nearly 30 years 2019–2024 SCE System Average Rate1 Local inflation 68% from external events Cents per kWh 1. All rates include California Climate Credit 2. Includes items such as undercollection of rates in 2023 due to milder than anticipated weather and other one-time events 32% from standard operations 21% Wildfire 2% Public Purpose Programs 45% Power Supply and Weather2 4% Power Supply – Clean Energy 28% Load Growth / Infrastructure Replacement

Edison International | October 2024 Business Update 14 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix 33.7 33.1 26.7 27.5 27.5 28.3 29.6 PG&E SDG&E SCE 2025 2026 2027 2028 SCE rate increases through 2028 now expected to be near inflation, providing headroom for additional investment SCE’s system average rate growth aligns closely with local inflation (including full 2025 GRC request and full legacy wildfire cost recovery) as historical cost recovery rolls out of rates and kWh consumption rises +26% vs. SCE +24% vs. SCE SCE has the lowest system average rate among California IOUs System Average Rate1,2,3, Cents per kWh 1. All rates include California Climate Credit 2. Sources: SCE Advice 5307-E effective June 1, 2024, PG&E Advice 7307-E effective July 1, 2024, SDG&E Advice 4366-E effective March 1, 2024 3. Forecast and CAGR as of July 2024, based on beginning system average rate of 26.7¢/kWh, and incorporates 2025 GRC approval at full request, forecast of purchased power costs, and approval of filed applications. Forecast subject to change. Actual rates will vary based on actual authorized rates, changes in market prices, variability in sales, collections, timing of regulatory decisions, and other factors Forecast Current 3 ~2.6% CAGR3

Edison International | October 2024 Business Update 15 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Composition of an Average SCE Residential Bill 6% Transmission Investment in operations and maintenance for high-voltage transmission lines 26% Distribution Grid maintenance and new equipment, including poles, wires, and substations 10% Wildfire Covered conductor, vegetation clearing, enhanced inspections, weather stations, HD cameras, and insurance 4% Public Purpose Programs Mandated state programs, including incentives for energy efficiency and protection for low-income customers 11% Taxes Federal, state, county, and city taxes and uncollectibles 43% Power Supply Cost of energy sources, including natural gas, hydro, solar, and wind

Edison International | October 2024 Business Update 16 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Customer demand is accelerating — 10-year load growth forecast has increased significantly over last two years 2022 Distribution System Plan 2024 Distribution System Plan +4.2 GW +5.6 GW EV Load Non-EV Load …Now expect 35% higher 10-year load growth SCE Projected Load Growth, Total New Gigawatts Load growth trends underscore sustained need for distribution grid investment, reinforcing our wires-focused strategy +35% Customers requesting new load growth projects Expect new policy-driven EV and building electrification load Current forecast likely conservative as emerging loads materialize over longer-term Demand trends materializing sooner than expected…

Edison International | October 2024 Business Update 17 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Edison International has one of the strongest electrification profiles in the industry 1. Inflation Reduction Act of 2022 State plans for ~$525 million in budgets over next 5 years for equitable building decarbonization; IRA1 brings in excess of $22B in tax credits and rebates nationwide SCE considering further steps to help state close current deployment gap Target to have 27 million residential heat pumps in California by 2045 Represents ~4.3 million MWh of incremental load in SCE’s area by 2035 ~7.9 million MWh by 2045 SCE has installed or procured ~8.8 GW of storage capacity; ~3.5 GW currently online SCE commissioned ~310 MW and commissioning additional ~225 MW of utility-owned storage to support reliability Project 30+ GW of utility-scale storage needed California-wide by 2045 Growing energy storage capacity supports reliability as economy increasingly relies on electricity Largest U.S. IOU EV charging programs with over $800 million of approved funding plus over $1 billion of incentives Substantial state budget commitments to accelerate zero-emission vehicles 25% of new cars sold in California in 2023 were zero emission vehicles Current trajectory of 14 million EVs in CA (5.2 million in SCE’s area) by 2035 Represents ~24.6 million MWh in SCE’s service area by 2035 and ~50 million MWh by 2045 Transportation Electrification Energy Storage Building Electrification

Edison International | October 2024 Business Update 18 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix $872 $798 $527 $414 $309 $293 EIX Utility A Utility B Utility C Utility D Utility E SCE leads the largest utility transportation electrification initiatives and programs in the U.S. 1. Low Carbon Fuel Standard. The LCFS program at the California Air Resources Board (CARB) funds SCE’s vehicle rebate programs through the sale of LCFS credits to market participants and not through customer rates. These amounts are distinct from funding approved for SCE’s transportation electrification programs Sources: EEI Electric Transportation Biannual State Regulatory Update (December 2023), SCE Edison’s long-standing suite of transportation electrification programs enables California’s leadership of EV adoption Approved Electric Utility Transportation Electrification Portfolios >$250 Million $ in Millions By 2030, SCE will administer over $1 billion of EV purchase incentives and other equity-focused programs funded via California’s LCFS program1 By end of 2027, SCE’s programs expected to have: – Added ~22,000 light-duty vehicle chargers and ~8,500 medium- and heavy-duty vehicles – Directly contributed to electrification of >500,000 vehicles with ~25% in disadvantaged communities EIX/SCE received the prestigious Edison Electric Institute (EEI) Edison Award for SCE’s innovative suite of TE programs

Edison International | October 2024 Business Update 19 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix - 10,000 20,000 30,000 40,000 50,000 60,000 2023 2028 2033 2038 2043 SCE’s future load growth is highly levered to EV adoption, a critical component of reaching state GHG goals 1. Includes both light duty and non-light duty EV load 25% of new cars sold in California in 2023 were zero emission vehicles; state has >100,000 public chargers SCE’s Charge Ready programs are expected to stimulate growth in EV adoption and the build out of charging infrastructure SCE’s programs include a focus on serving multi-family dwellings and disadvantaged communities State budget funding of ~$9 billion to accelerate zero-emission vehicles represents significant progress in helping spur adoption Electric vehicles in SCE’s service area expected to add ~3,700 GWh of load in 2024 and could grow to 50,000+ GWh by 2045 Electric load from electric vehicles in SCE’s service area, GWh1 ~15x increase

SCE WILDFIRE MITIGATION: APPROACH, PROGRESS, AND RESULTS

Edison International | October 2024 Business Update 21 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix SCE is seeing numerous proof points and results from its differentiated and substantial wildfire mitigation efforts 1. Since 2018 and as of September, 30, 2024 6,100+ MILES OF COVERED CONDUCTOR1 2 MILLION+ TRIMS AND REMOVALS IN HFRA1 1 MILLION+ HFRA INSPECTIONS1 1,770+ WEATHER STATIONS1 ~200 HD CAMERAS1 100% fewer structures destroyed ✓ (in 2023 vs. 2017-18) No ignitions due to failure of ✓covered conductor 99% fewer acres burned ✓ (in 2023 vs. 2017-18) ~90% visual coverage of SCE’s ✓ High Fire Risk Area

Edison International | October 2024 Business Update 22 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix California has the strongest wildfire risk reduction profile in the nation Suppression CAL FIRE Budget: Doubled since 2017-18 CAL FIRE Staffing: 80% increase since 2017-18 CAL FIRE’s fleet is the largest civil aerial firefighting fleet in the world Legislation AB 1054 passed in July 2019 Codified prudent manager standard Created $21 billion wildfire insurance fund Regulation Wildfire Mitigation Plan Safety Certification Substantial approved funding for wildfire mitigation ✓ ✓ ✓

Edison International | October 2024 Business Update 23 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix AB 10541 provides a strong regulatory construct for determining wildfire liability and cost recovery Established safety certification process and additional safety oversight Under AB 1054, SCE can obtain an annual safety certification upon submission of required safety information, including an approved wildfire mitigation plan Safety certifications valid for 12 months and remain valid until Office of Energy Infrastructure Safety acts on SCE’s request for a new safety certification Codified prudency standard that assumes utility prudency unless serious doubt created Provided a utility is “safety certified,” establishes a prudency standard that assumes utility is prudent, unless intervenors create serious doubt Prudency based on reasonable utility conduct with potential for full or partial recovery, considering factors within and beyond a utility’s control (e.g., humidity, temperature, winds) Standard survives even if Wildfire Insurance Fund is depleted Established ~$21 billion Wildfire Insurance Fund to enhance liquidity Reimburses utility for eligible claims payments above the higher of $1 billion and required insurance coverage Currently ~$11.9 billion of assets, invested ~2/3 Treasury/Agency and ~1/3 corporate securities (Avg. credit rating of AA with average duration of 3.6 years)2 Caps utility liability exposure if utility found imprudent (SCE 2024 cap: ~$3.9 Bn) If found prudent, no requirement to reimburse fund for claims covered by fund If found imprudent or partially imprudent, shareholders reimburse fund Reimbursement capped if utility has valid safety certification.3 The cap covers trailing three-year period and limits reimbursement to 20% of electric T&D equity rate base4 1. California Assembly Bill 1054, executed by the governor of California on July 12, 2019 2. Source: California Earthquake Authority Financial Report presented at the August 12, 2024 California Catastrophe Response Council meeting 3. And has not been found to have acted with conscious or willful disregard of the rights and safety of others 4. Excluding general plant and intangibles

Edison International | October 2024 Business Update 24 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix $2.0 $2.5 $2.9 $2.5 $2.6 $3.7 $4.1 $4.2 2017-18 2018-19 2019-20 2020-21 2021-22 2022-23 2023-24 2024-25 California has continued to increase investments in wildfire suppression and prevention 60+ aircraft make CAL FIRE’s fleet the largest civil aerial firefighting fleet in the world3 1. As initially enacted. Does not include subsequent Emergency Fund funding 2. Budgeted across departments and budget years Portions of the funding for the Wildfire & Forest Resilience Strategy are captured within CAL FIRE’s overall budget and the action in this reference 3. https://www.fire.ca.gov/what-we-do/fire-protection/aviation-program 4. https://www.fire.ca.gov/incidents/2023 CAL FIRE’s budget has doubled since 2017-18 CAL FIRE Enacted Budget by Budget Year, $ in Billions1 CAL FIRE’s staffing has increased by ~80% since 2017-18 Thousands of CAL FIRE Budget Year Positions1 6.9 7.2 7.7 8.1 8.8 11.3 12.0 12.5 2017-18 2018-19 2019-20 2020-21 2021-22 2022-23 2023-24 2024-25 State has committed $2.6 billion over 7 years2 for Wildfire & Forest Resilience Strategy 2023 fire season saw substantial decrease in number of wildfires and total acreage burned vs. 5-year average4

Edison International | October 2024 Business Update 25 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Covered conductor is a very valuable tool to expeditiously and cost-effectively reduce wildfire risk specific to SCE ~2.9 ~4.5+ ~0.7 Under-ground Covered Conductor ~75–85% lower • Communities of Elevated Fire Concern3 • High burn frequency • Limited egress • Wind speeds exceeding covered conductor PSPS thresholds • Exceptionally high potential consequence (>10,000 acres) • Operational feasibility Cost per Mile1 $ in Millions Avg. Implementation Time In Months 1. Based on data provided in SCE’s 2025 GRC 2. The Schedule phase includes verifying permits, obtaining easements, scoping and bundling work, and scheduling construction 3. Communities of Elevated Fire Concern defined as smaller geographic areas where terrain, construction, and other factors could lead to smaller, fast-moving fires threatening populated locations under benign (normal) weather conditions Targeted Undergrounding Pursued Based on Risk Profile Lower Cost to Implement Faster Execution Speed Covered Conductor Under-ground Initiate ~2–3 ~2–3 Plan ~6–9 ~9–15 Schedule ~6–9 ~9–15 Execute ~2–3 ~5–15 Total 16–24+ 25–48+

Edison International | October 2024 Business Update 26 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix SCE reaches another milestone in hardening distribution lines in high fire risk area (HFRA): 85% of planned hardening complete Completed Hardening (~13,400 miles) Remaining Planned2,3 (~2,400 miles) Underground (~7,300 miles) Covered Conductor (6,100+ miles) By end of 2025, expect to be approaching 90% of total distribution lines in high fire risk area hardened1 Status of Currently Planned Grid Hardening in HFRA1 Distribution circuit miles, As of September 30, 2024 Completed 85% of plan 1. Refers to circuit miles of distribution infrastructure in SCE’s high fire risk areas (HFRA) 2. Includes covered conductor and undergrounding 3. 2025–2028 is subject to regulatory approval. SCE has requested funding for ~1,830 miles during 2025–2028 in its 2025 GRC

Edison International | October 2024 Business Update 27 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix SCE’s total hardened miles in high fire risk area exceed all other California IOUs combined1 - 5 10 15 20 25 30 IOU A IOU B IOU C IOU D IOU E 1. As of December 31, 2023, ~13k distribution circuit miles vs. ~9k distribution circuit miles (underground and hardened overhead) for other IOUs combined 2. Estimated based on data reported by Large and Small IOUs (as defined by Office of Energy Infrastructure Safety) 2023–2025 Wildfire Mitigation Plans on Table 5-2, assuming proposed miles in those plans for 2023 were completed or based on disclosed data, and Q4 2023 Quarterly Data Reports Hardening Status of California IOU Distribution Lines in High Fire Risk Area Thousands of circuit miles, Sorted by percentage of total distribution circuit miles in HFRA hardened, Estimated as of December 31, 20232 Underground Hardened Overhead Not Yet Hardened

Edison International | October 2024 Business Update 28 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix SCE’s wildfire mitigation and improved state fire suppression have significantly reduced damage when ignitions occur1 SCE Ignitions in HFRA1 56 49 47 57 51 45 19 34 1. Refers to CPUC reportable ignitions (>1 linear meter) and Electric Safety Incident Report (ESIR) ignitions in SCE’s high fire risk area (HFRA). Ignitions and the associated acres burned includes acres burned from ESIR ignitions where a cause is undetermined: most notable are 2022 Fairview Fire (28.307 acres) & 2024 Pauba Fire (101 acres). Year-to-date 2024 data is as of September 30, 2024. The provision of ignition data should not be construed as an admission of any wrongdoing or liability by SCE. SCE further notes that the damages metrics provided may be tracked by other agencies and thus, SCE does not guarantee the accuracy of such information. Additionally, in many instances the cause of wildfires are still under investigation and even where an Authority Having Jurisdiction has issued a report on the cause, SCE may dispute the conclusions of such report 2. As initially enacted. Does not include subsequent Emergency Fund funding Significant decrease in acres burned from SCE’s ignitions1 Thousands of Acres Burned from CPUC-reportable and ESIR ignitions in SCE’s High Fire Risk Area (HFRA)1 304.5 0.2 2017 2018 2019 2020 2021 2022 2023 YTD 2024 2017 2024 SCE Covered Conductor Miles – 6,100+ CAL FIRE Budget ($Bn)2 $2.0 $4.2 Substantial physical hardening and fire suppression enhancements

Edison International | October 2024 Business Update 29 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix SCE estimates its wildfire mitigation and PSPS have significantly reduced probability of losses from catastrophic wildfires1,2 1. Baseline risk estimated by Risk Management Solutions, Inc. (Moody’s RMS) using its wildfire model, relying on the following data provided by SCE: the location of SCE’s assets, CPUC reportable ignitions from 2014–Q3 2023, mitigation effectiveness and locations of installed covered conductor, tree removals, inspections, line clearing, fast curve settings, and PSPS de-energization criteria 2. There are risks inherent in the simulation analysis, models and predictions of SCE and Moody’s RMS relating to the likelihood of and damage due to wildfires and climate change. As with any simulation analysis or model related to physical systems, particularly those with lower frequencies of occurrence and potentially high severity outcomes, the actual losses from catastrophic wildfire events may differ from the results of the simulation analysis and models of Moody’s RMS and SCE. Range may vary for other loss thresholds 3. Includes (i) total potential insured losses estimated by Moody’s RMS, and (ii) total potential uninsured losses estimated by SCE based on management experience and consultation with insurance industry experts. “Fund” refers to CA AB 1054 Wildfire Insurance Fund. SCE used Moody’s RMS loss estimates along with its estimates of uninsured losses to quantify the reductions in estimated probability Risk of Loss Probability of Loss Reduced By Achieved predominantly via grid hardening ≥$1 billion3 (AB 1054 Wildfire Insurance Fund threshold) ~85% ≥$3.5 billion3 Drawn from Fund over 3 years (Proxy for Liability Cap) ~88% ≥$4 billion3 90%+ Stochastic modeling of 50,000 simulations to estimate future probability of losses Uses Moody’s RMS’ model widely used by insurance industry to price risk Loss levels tied to AB 1054 fund and liability cap Completed 85% of planned grid hardening

Edison International | October 2024 Business Update 30 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix SCE has reduced use of PSPS for lowering wildfire risk through use of covered conductor and other physical mitigation 1. Baseline risk estimated by Risk Management Solutions, Inc. (Moody’s RMS) using its wildfire model, relying on the following data provided by SCE: the location of SCE’s assets, reported ignitions from 2014–Q3 2023, mitigation effectiveness and locations of installed covered conductor, tree removals, inspections, line clearing, fast curve settings, and PSPS de-energization criteria. 2. There are risks inherent in the simulation analysis, models and predictions of SCE and Moody’s RMS relating to the likelihood of and damage due to wildfires and climate change. As with any simulation analysis or model related to physical systems, particularly those with lower frequencies of occurrence and potentially high severity outcomes, the actual losses from catastrophic wildfire events may differ from the results of the simulation analysis and models of Moody’s RMS and SCE. Range may vary for other loss thresholds 3. PSPS and System Hardening Values are estimated by SCE based on operational experience in 2018–2020 compared to the subsequent modeled years SCE’s wildfire risk mitigation is differentiated by its speed of hardening its infrastructure Estimated reduction in probability of catastrophic losses using the independent Moody’s RMS wildfire risk model compared to pre-2018 levels 1,2,3 20% 55–60% 55–60% 65–70% 75–80% 85–90%+ 2018 2019 2020 2021 2022 2023 Public Safety Power Shutoffs (PSPS) (Contribution has declined from 100% to ~10%) Physical Mitigation (Grid hardening (e.g., covered conductor), inspections, vegetation management) ~125 ~495 ~1,480 ~2,980 ~4,400 Cumulative miles of covered conductor installed at year-end: Current ~5,600

FINANCIAL INFORMATION

Edison International | October 2024 Business Update 32 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix 5.2 5.6 6.7 7.2 7.2 7.0 0.2 0.4 0.8 0.9 1.0 0.7 $5.4 $6.0 $7.5 $8.1 $8.2 $7.7 2023 2024 2025 2026 2027 2028 Capital deployment expected to increase in 2025–20281 Range Case2 (Recorded) $5.6 $6.6 $6.8 $6.8 $6.4 GRC underpins ~$38–43 billion 2023–2028 capex forecast; substantial additional investment opportunities offer upside CPUC FERC Capital Expenditures, $ in Billions Forecast does not include substantial additional capital deployment opportunities 1. NextGen ERP 2. Advanced Metering Infrastructure (AMI) 2.0 3. Other potential investments in the grid supporting reliability, resilience, and readiness 4. FERC transmission $2bn+ $2bn+ Forecast 1. Forecast for 2025 includes amounts requested in SCE’s 2025 GRC filing. Additionally, reflects non-GRC spending subject to future regulatory requests beyond GRC proceedings and FERC Formula Rate updates 2. Annual Range Case capital reflects variability associated with future requests based on management judgment, potential for permitting delays and other operational considerations

Edison International | October 2024 Business Update 33 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Over 85% of SCE’s capital investments are in its distribution grid and essential to reliability, resiliency, and readiness objectives Distribution Non-distribution 30% 18% 15% 13% 11% 8% 3% 2% Infrastructure Replacement Wildfire Mitigation Load Growth & New Service Connections Inspections & Maintenance Other Distribution1 Transmission Generation Electrification >85% distribution grid SCE forecasts investing $38–43 billion from 2023 to 2028 to support SCE’s wildfire mitigation strategy and clean energy transformation in California Percentage of 2023–2028 capital plan 1. Includes utility-owned storage

Edison International | October 2024 Business Update 34 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix 33.6 35.9 41.8 45.3 48.7 51.8 7.6 7.5 7.6 7.7 8.1 8.8 $41.2 $43.4 $49.4 $53.0 $56.8 $60.6 2023 2024 2025 2026 2027 2028 Projected ~6–8% rate base growth 2023–2028; substantial additional investment opportunities offer upside CPUC FERC ~8% CAGR 2023–2028 Rate Base1 , $ in Billions Strong rate base growth driven by wildfire mitigation and important grid work to support California’s leading role in clean energy transition Range Case2 (Recorded) $43.0 $48.1 $50.4 $52.8 $55.3 Forecast does not include substantial additional capital deployment opportunities 1. NextGen ERP 2. Advanced Metering Infrastructure (AMI) 2.0 3. Other potential investments in the grid supporting reliability, resilience, and readiness 4. FERC transmission $2bn+ $2bn+ 1. Weighted-average year basis 2. Range Case rate base reflects only changes in forecast capital expenditures

Edison International | October 2024 Business Update 35 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix 2025 GRC record complete — now awaiting proposed decision 1. Does not reflect updates to 2025 cost of capital 2. Refers to stipulated agreements entered into the GRC’s procedural record and the CPUC-approved Joint Motion For Early Decision Extending The Wildfire Liability Customer-Funded Self-Insurance Program All steps by parties complete. Awaiting issuance of proposed decision ✓ Partial settlements2 with intervenors ✓ covering 12 areas – Represents ~19% of O&M and ~8% of capital request – Would approve ~96% of requests in respective areas Annual GRC Revenue Requirement Increases1 $ Millions 2025 2026 2027 2028 ~$1,900 ~$670 ~$750 ~$730 Event Date Reply Briefs August 5, 2024 Proposed Decision (PD) TBD Oral Arguments TBD Final Decision ≥30 days after PD ✓ Wildfire Liability Customer-funded Self-insurance ✓ Billing Services, Credit and Payment Services ✓ Business Customer Services and Communications, Education, and Outreach ✓ Customer Experience Management ✓ Customer Programs Management ✓ Customer Contacts ✓ Environmental Services ✓ Employee Support ✓ Capital Forecast for Enterprise Technology and OU Capitalized Software (Technology Solutions) ✓ Training & Development ✓ Non-Wildfire Insurance ✓ Cybersecurity and Physical Security *Final decision will be retroactive to January 1, 2025

Edison International | October 2024 Business Update 36 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Resolution of legacy wildfires entering final stages: TKM settled and Woolsey application filed TKM (A.23-08-013) Woolsey (A.24-10-002) Value ~$1.6 billion (Settlement value)1 ~$5.4 billion (Request) Next Steps Response to ALJ request for more information due Nov. 42 Settlement pending CPUC approval (expected by first half of 2025) Protests due Nov. 12 SCE proposed scoping memo issuance by mid-December Avg. Residential Customer Cost3 ~$1.00/month ~$3.44/month (vs. average bill of ~$174) Remaining Ind. Plaintiffs ~80 ~360 Both cost recovery applications for 2017/2018 TKM: 2025 Modeling Considerations Wildfire/Mudslide Events now filed 1. Settlement would authorize recovery of 60% of WEMA costs (claims and associated financing and legal expenses) and 85% of CEMA costs 2. ALJ requested comments on rate recovery proposal if Settlement Agreement is approved but securitization request is denied 3. For WEMA costs only. Estimated cost assuming securitization. Average bill shown is for non-CARE residential customers CPUC final decision on settlement triggers accounting in the quarter received – ~30¢ one-time core EPS benefit (for interest incurred up to decision date) – Begin deferring interest expense on $1.6 billion of debt (full-year run rate of 14¢) Securitization follows CPUC approval of financing order – SCE will file separate application following final approval of settlement agreement – Expect ~6 months for review and implementation – Proceeds of ~$1.6 billion expected by year-end 2025 Use of proceeds – Offsets normal-course debt issuances as SCE reallocates outstanding debt for rate base growth

Edison International | October 2024 Business Update 37 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Key Takeaways of TKM Settlement Agreement Authorized Amounts 60% of claims, financing, and legal costs (~$1.6 billion WEMA recovery) 85% of restoration costs (~$55 million CEMA recovery) Permanent Capital Structure Exclusion Permanently exclude after-tax charges to equity and associated debt from SCE’s CPUC regulatory capital structure Cost Recovery SCE will file separate application seeking approval to recover authorized WEMA amounts through issuance of securitized bonds CEMA amounts will be recovered through normal course recovery (i.e., rate base) Next Steps Response to ALJ request for more information due Nov. 41 SCE anticipates proposed decision by first half of 2025 Following final settlement approval, separate application to issue securitized bonds expected to take 6 months for CPUC review SCE anticipates securitized bond proceeds would be received by end of 20252 1. ALJ requested comments on rate recovery proposal if Settlement Agreement is approved but securitization request is denied 2. Assuming securitization approved

Edison International | October 2024 Business Update 38 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Cost recovery for 2017/2018 events benefits financial strength of the utility and reduces costs for customers Modeling sensitivities: For each $1 billion of cost recovery… Debt paydown with proceeds of securitization $1 billion Higher FFO-to-Debt ~40–50 bps Reduced interest expense ~$35 million (~9¢/share) Total potential avoided excess financing costs2 for SCE debt issued over next 10 years As high as $4.9 billion 1. Bill impact of $0.63/month for each $1 billion of recovery, with no impact to low-income customers. This will be offset by avoided excess financing costs for all customers 2. Based on analysis in the Thomas Fire and Debris Flow Cost Recovery Application – Financial Policy Testimony (SCE-01, Volume 3) Reduces overall costs to customers1

Edison International | October 2024 Business Update 39 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix EIX narrows 2024 Core EPS guidance to $4.80–5.00 1. SCE is unable to conclude, at this time, that these amounts are probable of recovery; however, recovery being sought as part of cost recovery applications Note: See Earnings Per Share Non-GAAP Reconciliations and Use of Non-GAAP Financial Measures in Appendix. All tax-effected information on this slide is based on our current combined statutory tax rate of approximately 28%. Totals may not add due to rounding 2023 2024 YTD 2024 Guidance Rate Base EPS 5.51 4.54 6.06–6.10 SCE Operational Variance 0.82 0.64 0.57–0.70 SCE Costs Excluded from Authorized (0.76) (0.66) (0.95)–(0.94) EIX Parent and Other Operational expense (0.11) (0.07) (0.10)–(0.09) Interest expense, pref. div. (0.70) (0.57) (0.78)–(0.77) EIX Consolidated Core EPS $4.76 $3.88 $4.80–5.00 Share Count (in millions) 383.2 385.6 385.7 EIX 2024 Core Earnings Per Share Guidance Range Building from SCE Rate Base EPS 2024 Modeling Considerations Rate Base EPS: CPUC ROE: 10.75% / FERC ROE: 10.30% SCE Operational Variance includes: – AFUDC ~48¢ – 2022 CEMA (Approved in May) ~14¢ SCE Costs Excluded From Authorized includes: – Wildfire claims debt interest1 62–64¢ ▪ Reflects refinancing of maturing wildfire claims debt ▪ Additional debt issuance Parent Interest Expense and Preferred Dividends: – Reflects full year of debt issued in 2023 in excess of amounts needed to fund preferred stock repurchase and lower gain on repurchase

Edison International | October 2024 Business Update 40 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix ✓ EIX’s 2024 financing plan completed 1. Financing plans are subject to change EIX 2024 Financing Plan1 Equity needs fully addressed: $100 million of equity need, $75 million pre-funded with excess JSN proceeds in Dec. 2023; remaining need fully addressed via internal programs in Q1 2024 ✓ Minimal debt financing: Issued $500 million parent debt in Q2 to refinance $500 million maturity

Edison International | October 2024 Business Update 41 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix ~$4.5 billion memo account recovery 2021–Q3 20241 ~$1.6 billion securitizations of AB 1054 capex completed ~$3.2 billion remaining recoveries through 2026 Cash flow from memo account recovery and securitization strengthens our balance sheet and credit metrics Approved Applications Application / Account Balance @ Sept. 30, ’24 Recovery Through Remaining Rate Recovery by Year Q4 2024 2025 2026 ✓ 2022 CEMA 288 Sept. ’25 72 216 – ✓ 2021 WM/VM 253 May ’25 95 158 – ✓ 2022 WM/VM—interim rate recovery 210 Feb. ‘26 37 148 25 ✓ GRC Tracks 2 & 3 190 Sept. ’25 67 122 – ✓ CSRP Track 1 124 Dec. ’25 22 102 – ✓ 2021 CEMA & Others 71 Varies 52 19 – Total 1,135 344 766 25 Pending Applications2 (Subject to CPUC Authorization) Application Request2,3 Expected Amort.2 Expected Rate Recovery by Year3 Q4 2024 2025 2026 WMCE 326 12 months – 82 245 2022 WM/VM—non-interim rate recovery 174 12 months – 102 73 Total Rate Recovery 500 – 184 318 TKM Securitization 1,627 n/a – 1,627 – Total Including Securitization 2,127 – 1,810 318 1. Includes ~$1.6 billion recovered through securitization of AB 1054 capital expenditures 2. Pending Applications reflects applications already submitted to the CPUC. Additional CEMA applications will be made for other events. Requested revenue requirement shown. Amounts and amortization subject to CPUC approval 3. Reflects request at the time of the application. SCE continues to record capital-related revenue requirements and interest that would also be authorized upon commission approval. For TKM securitization, amount reflects costs recovered upfront. Recovery in customer rates of costs to service the bonds takes place over the tenor of the debt at a fixed recovery charge rate Note: Numbers may not add due to rounding Remaining GRC and Wildfire-related Application Recoveries $ in Millions

Edison International | October 2024 Business Update 42 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix EIX and SCE are committed to investment grade credit ratings 1. Excludes amortization of securitized bonds related to SCE’s AB 1054 Excluded Capital Expenditures and short-term debt 2. Based on S&P’s methodology SCE EIX Moody’s Baa1 Stable Baa2 Stable S&P BBB Stable BBB Stable Fitch BBB Stable BBB Stable EIX and SCE upgraded by Moody’s and Fitch in 2023, reflecting decline in wildfire risk facing SCE. In 2024, S&P lowered FFO-to-Debt downgrade threshold to 14% from 15% Targeting EIX long-term FFO-to-Debt ratio of 15–17%2 Manageable long-term debt maturities; ~15% of total $34 billion debt portfolio at parent Credit strengths include: – Stable, regulated T&D operations – Extensive cost recovery mechanisms – Credit supportive measures under AB 1054 – Wildfire mitigation investments Investment grade ratings at SCE and EIX Long-term Issuer Rating and Outlook as of October 28, 2024 Long-term Debt Maturities1 $ in Millions, as of September 30, 2024 EIX Parent SCE 1,200 1,850 1,739 2,259 800 600 1,150 1,050 500 2,000 1,850 2,450 2,889 3,309 2024 2025 2026 2027 2028 2029

Edison International | October 2024 Business Update 43 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix EIX & SCE do not have variable-rate long-term debt exposure Approximately $13 billion of the total ~$34 billion long-term debt portfolio matures through 20291 SCE Wildfire Interest expense will be included in cost recovery applications SCE Operational Minimal exposure based on authorized cost of capital EIX Parent Parent long-term debt is ~15% of total ~$34 billion portfolio1 Outstanding Long-Term Debt Maturities (2024–2029)1 as of September 30, 2024, $ in Millions - 900 - - 439 1,659 2024 2025 2026 2027 2028 2029 1. Does not include commercial paper or amortization of secured recovery bonds issued by SCE Recovery Funding LLC. Total long-term debt portfolio value excludes secured recovery bonds issued by SCE Recovery Funding LLC. - 300 1,850 1,850 1,300 600 2024 2025 2026 2027 2028 2029 500 800 - 600 1,150 1,050 2024 2025 2026 2027 2028 2029 4.2% 5.2% 5.4% 3.7% 4.8% 5.8% Fixed Rate Wtd. Avg. Rate 4.2% Variable Rate - 6.2% 3.5% 3.7% 3.6% 4.7% 5.2%

Edison International | October 2024 Business Update 44 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix EIX has a solid track record of delivering on Core EPS guidance over the last two decades 2023 2022 2021 2020 2019 In-line In-line Exceeded In-line In-line 2017 2016 2015 2014 2013 Exceeded In-line Exceeded Exceeded Exceeded 2011 2010 2009 2008 2007 Exceeded In-line Exceeded In-line Exceeded 2006 2005 2004 Exceeded Exceeded Exceeded EIX Actual Core EPS vs. Guidance Range History1 ✓ ✓ ✓ ✓ ✓ ✓ ✓ 1. 2012 and 2018 not shown because Core EPS guidance was not given in those years due to GRC decision timing ✓+ ✓+ ✓+ ✓+ ✓+ ✓+ ✓+ ✓+ ✓+ ✓+ ✓+

Edison International | October 2024 Business Update 45 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix EIX has 20 consecutive years of dividend growth1 $0.80 $3.12 2004 2024 7% CAGR Dividends per Share 1. 2024 dividend annualized based on dividend declaration on December 14, 2023

Edison International | October 2024 Business Update 46 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix EIX expects 5–7% Core EPS growth for 2025–2028, with financing plan showing minimal equity needs 1. For 2025, represents the midpoint of the 2025 Core EPS guidance range for $5.50–5.90 2. Financing plan is subject to change. Does not incorporate potential cost recovery in the 2017/2018 Wildfire/Mudslide cost recovery proceedings, which could materially change the financing plan 3. EIX Dividends includes common and preferred dividends, which are subject to approval by the EIX Board of Directors 4. Incremental to refinancing of maturities. Values shown include both SCE and parent debt $5.70 $6.60–7.00 2025 Midpoint 2028 Achievable EPS growth for 2028 Core Earnings per Share Guidance1 5–7% CAGR Uses Sources 2025–2028 EIX consolidated financing plan2 $ in Billions Capital Plan $27–32 Dividends3 $6–7 Net cash provided by operating activities $25–28 Incremental Debt4 $8–11 Equity ~$0.4

Edison International | October 2024 Business Update 47 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix EIX offers double-digit total return potential 1. Compound annual growth rate (CAGR) based on the midpoint of the 2021 Core EPS guidance range of $4.42–4.62 established on September 16, 2021; CAGR for 2025–2028 based on the midpoint of 2025 Core EPS guidance range of $5.50–5.90 2. Based on EIX stock price on October 28, 2024 3. At current P/E multiple. Excludes changes in P/E multiple 4. Risk reduction based on mitigations through December 31, 2023 5–7% Core EPS CAGR1 2021–2025 and 2025–2028 Underpinned by strong rate base growth of ~6–8% $38–43 billion 2023–2028 capital program ~4% current dividend yield2 20 consecutive years of dividend growth Target dividend payout of 45–55% of SCE core earnings Investments in safety and reliability of the grid Wildfire mitigation execution reduces risk for customers Creates strong foundation for climate adaptation and the clean energy transition One of the strongest electrification profiles in the industry Industry-leading programs for transportation electrification Expected 35% load growth by 2035 and 80% by 2045 9–11% total return opportunity3 before potential P/E multiple expansion driven by estimated 85–90%+ wildfire risk reduction4 , and ongoing utility and government wildfire mitigation efforts

APPENDIX

Edison International | October 2024 Business Update 49 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Partners with large commercial, industrial, and institutional organizations to navigate the energy transition by providing integrated energy management and sustainability solutions Provide independent, expert advice and services Provides strategy and implementation solutions across sustainability, renewables, conventional supply, energy optimization, and transportation electrification Global reach. Local impact. Clients include 50 of the world’s largest companies2 Serving clients in 30+ countries globally 12.2+ GW of offsite renewable procurement deals Provide insights for clean energy efforts Supports Edison International’s clean energy, electrification, and sustainability strategy Trio1 partners with the world's largest organizations to create meaningful climate impact — globally 1. In March 2024, Edison Energy began doing business as Trio 2. Based on the Fortune 500 and Fortune Global 500 lists

Edison International | October 2024 Business Update 50 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix SCE continues to fund wildfire claims payments with debt Series Principal Due Rate 2022C 300 6/1/25 4.200% 2020C 350 2/1/26 1.200% 2024C 600 3/1/26 5.350% 2023C 400 6/1/26 4.900% 2024G 500 9/6/26 4.400% 2024A 500 2/1/27 4.875% 2022D 600 6/1/27 4.700% 2022F 750 11/1/27 5.850% 2023A 750 3/1/28 5.300% 2023E 550 10/1/28 5.650% 2024D 600 6/1/29 5.150% 2024F 750 6/1/31 5.450% 2022E 350 6/1/52 5.450% Total $7,000 Forecasted 2024 Interest (pre-tax): ~$335 Wildfire Claims Payment-Related Debt Issuances $ in Millions except percentages, as of September 30, 20241 Interest expense not currently recoverable in rates, however, included in 2017/2018 Wildfire/Mudslide Events cost recovery applications SCE has waiver from CPUC, allowing exclusion with respect to certain current and future charges to equity and associated debt for calculating SCE’s regulatory equity ratio – Waiver approved through August 2025 (with ability to seek additional extension via application) or until CPUC makes a final determination on cost recovery for 2017/2018 Wildfire/Mudslide Events – When approved, TKM settlement agreement would authorize permanent exclusion for disallowed TKM costs

Edison International | October 2024 Business Update 51 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix TKM Settlement Agreement: Authorized Cost Recovery and Permanent Disallowances Final Settlement (in millions)1 SCE Application Authorized Permanent Disallowance Recovery WEMA Initial Application $2,406 $1,444 $963 60% WEMA Costs Incurred 7/31/23 to 5/31/242 305 183 122 60% Total WEMA through 5/31/243 $2,711 $1,627 $1,085 60% CEMA 65 55 10 85% Total WEMA and CEMA $2,776 $1,682 $1,094 1. Numbers in table may not add due to rounding 2. A portion of the costs is an estimate for the cost of financing from 5/31/2024 through the end of 2025. The amount recovered from customers will be trued up to reflect SCE’s actual financing costs recorded in SCE’s WEMA 3. SCE will recover 60% of the amounts incurred after May 31, 2024, after deducting the disallowance of $125 million from the Safety and Enforcement Division Administrative Consent Order and associated financing costs

Edison International | October 2024 Business Update 52 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix EIX reaffirms 5–7% 2021–2025 Core EPS growth rate target, which would result in 2025 Core EPS of $5.50–5.901 1. Based on the midpoint of initial 2021 Core EPS guidance range of $4.42–4.62 established September 16, 2021. Growth in any given year can be outside the range Component Modeling Considerations Rate Base EPS (based on capex levels) 6.60–6.80 •CPUC ROE of 10.33% and FERC ROE 10.30% •Reflects reduction in 2025 ROE from Cost of Capital Phase 2 decision SCE Op. Variance 0.75–0.95 •AFUDC is the largest contributor: ~$0.40 • Timing of regulatory decisions and other variances from authorized • Financing benefits (timing and market environment) SCE Costs Excluded from Authorized (1.00)–(0.90) •Primarily wildfire claims payment-related debt •Current interest rate assumption of 5.3% (sensitivity: ~0.5¢ per ±50bps change) EIX Parent & Other (0.88)–(0.93) •Current interest rate assumption of 6.1% (sensitivity: ~0.5¢ per ±50bps change) 2025 Core Earnings per Share Component Ranges Does not incorporate upside from TKM settlement

Edison International | October 2024 Business Update 53 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Key 2028 Earnings Sensitivities Variable Sensitivity 2028 EPS1 (“Per year” amounts refer to 2025–2028) Capex & Rate Base Rate Base $100 million/year of capex ~5¢ AFUDC Annual capex of $200 million 1¢ Requested ~$400 million increase in depreciation in 2025 GRC If requested increase not authorized +15–35¢ (on range case) Rates & Financing CPUC ROE (Currently 10.33%) 10 bps 7¢2 FERC ROE (Currently 10.30%) 10 bps 1¢2 Wildfire Debt Rate (4.6% weighted average portfolio) 20 bps 2¢ EIX Parent Debt Rate (5.0% weighted average portfolio) 20 bps 2¢ Equity (~$100 million/year 2025–2028) For each $10 million/year reduction +1¢ 1. Assumes ~390 million shares outstanding for 2028 2. Based on a CPUC / FERC rate base mix of 86% CPUC / 14% FERC and current authorized capital structures

Edison International | October 2024 Business Update 54 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix SCE Key Regulatory Proceedings Proceeding Description Next Steps Base Rates 2025 GRC (A.23-05-010) Sets CPUC base revenue requirement for 2025–2028. For more information, see the Investor Guide to SCE’s 2025 GRC Awaiting proposed decision Wildfire TKM Cost Recovery (A.23-08-013) Requesting approval of settlement agreement with Cal Advocates that would result in recovery of $1.6 billion of costs to resolve claims associated with the Thomas Fire and Montecito Mudslides and $55 million of restoration costs Comments on ALJ request for more information — Nov. 4–13 Awaiting proposed decision on motion for approval of settlement agreement Woolsey Cost Recovery (A.24-10-002) Request recovery of $5.4 billion of costs to resolve claims associated with the Woolsey fire and $84 million of restoration costs Protests due November 12 SCE requested prehearing conference and scoping ruling in December 2022 Wildfire Mitigation & Vegetation Management (A.23-10-001) Requesting approval of ~$384MM of rev. req. for incremental 2022 wildfire mitigation capex and O&M, and incremental 2022 veg. management O&M; Interim rate recovery of $210 million over 17-month period approved by CPUC in July 2024 Evidentiary hearings (if needed) scheduled for November 19 & 20 Opening briefs due December 17 Wildfire Mitigation & Vegetation Management, Catastrophic Events (WMCE) (A.24-04-005) Requesting approval of $326MM of rev. req. for incremental 2023 wildfire mitigation capex and O&M, incremental 2023 veg. management O&M, cumulative 2019–2023 incremental wildfire covered conductor program capex, storm-related costs associated with certain 2020–2022 events, and certain wildfire liability insurance premium expenses Intervenor testimony due December 6; All parties’ rebuttal testimony due January 15

Edison International | October 2024 Business Update 55 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Woolsey Cost Recovery Proposed Schedule Event SCE Proposed Date ✓ Application Filed October 8, 2024 Protests and responses November 12, 2024 SCE’s reply to protests November 22, 2024 Prehearing Conference Early December 2024 Scoping ruling issued Mid-December 2024 Intervenors’ prepared direct testimony Mid-March 2025 Rebuttal testimony Mid-May 2025 Evidentiary Hearings Mid-August 2025 Opening Briefs Mid-October 2025 Reply Briefs Mid-November 2025 Proposed Decision (PD) February 2026 Final Decision March 2026 55

Edison International | October 2024 Business Update 56 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Low High Basic EIX EPS $3.37 $3.57 Total Non-Core Items1 (1.43) (1.43) Core EIX EPS $4.80 $5.00 1. Non-core items are presented as they are recorded Earnings Per Share Non-GAAP Reconciliations Reconciliation of EIX Basic Earnings Per Share Guidance to EIX Core Earnings Per Share Guidance 2024 EPS Available to Edison International

Edison International | October 2024 Business Update 57 Introduction Clean Energy Transition Leadership Wildfire Mitigation Financial Information Appendix Use of Non-GAAP Financial Measures EIX Investor Relations Contact Sam Ramraj, Vice President Derek Matsushima, Principal Manager (626) 302-2540 (626) 302-3625 Sam.Ramraj@edisonintl.com Derek.Matsushima@edisonintl.com Edison International's earnings are prepared in accordance with generally accepted accounting principles used in the United States. Management uses core earnings (loss) internally for financial planning and for analysis of performance. Core earnings (loss) 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 (loss) are a non-GAAP financial measure and may not be comparable to those of other companies. Core earnings (loss) 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, such as write downs, asset impairments, wildfire-related claims, 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. A reconciliation of Non-GAAP information to GAAP information is included either on the slide where the information appears or on another slide referenced in this presentation.