EDISON INTERNATIONAL

Total capital expenditures (including accruals) were $4.0 billion and $3.9 billion for the nine months ended September 30, 2024 and 2023, respectively. As discussed in the 2023 Form 10-K, SCE forecasts total capital expenditures ranging from $32.2 billion to $37.5 billion for 2024 – 2028, and weighted average annual rate base from $43.0 billion to $60.6 billion for 2024 – 2028. These capital program and rate base projections incorporate the amounts requested in the 2025 GRC application and do not reflect subsequent updates included in SCE's amended and revised rebuttal testimony. For further information regarding the capital expenditures, see "Liquidity and Capital Resources—SCE—Capital Investment Plan" below and "Management Overview—Capital Program" in the 2023 MD&A.

In May 2023, the CAISO released its 2022 – 2023 Transmission Plan based on the CPUC's projections that more than 40 gigawatts of new resources need to be added in California by 2032. As the incumbent transmission owner for a portion of these transmission projects, SCE expects to construct projects requiring capital investment of at least $2.0 billion, most of which will be incurred beyond 2028. In May 2024, the CAISO released its 2023 – 2024 Transmission Plan which identified four additional transmission projects expected to be constructed by SCE with anticipated capital expenditures of approximately $40 million in 2027 and $48 million in 2029.

In addition to projects awarded to incumbent transmission owners, the CAISO identified projects eligible for competitive solicitation. On May 20, 2024, SCE, in association with Lotus Infrastructure Global Operations, LLC ("Lotus"), was selected

as the approved project sponsor for a 30-mile overhead transmission line project connecting San Diego and Orange Counties. The project is expected to be in-service in 2032. Subject to contract finalization with the CAISO and Lotus, under the terms of the commercial arrangement with Lotus, Lotus is expected to finance and construct the project. Upon the in-service date, SCE will purchase the entire project from Lotus for approximately $325 million, subject to certain adjustments, and lease 25% of the transmission capability to Lotus. Under the proposed lease agreement, Lotus will pay approximately $81 million in prepaid rent as well as 25% of the ongoing operations and maintenance costs. As a result, SCE expects to place approximately $244 million into its transmission rate base in 2032.