Company: SCE-PL
Filing Date: 2025-01-07
Form Type: 424B5
Source: 0001193125-25-002794
Chunk: 2

Company: SOUTHERN CALIFORNIA EDISON Co
Filing Date: 2025-01-07
Form: 424B5
Chunk 2
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. The second part, the base prospectus, provides general information about the first mortgage bonds and other securities that we may offer from time to time, some of which may not apply
to the bonds we are offering hereby. Generally, when we refer to the prospectus, we are referring to both parts of this document combined. If the description of the bonds varies between this prospectus supplement and the accompanying base
prospectus, you should rely on the information in this prospectus supplement.

References in this prospectus to “Southern California
Edison,” “we,” “us,” and “our” mean Southern California Edison Company, a California corporation. In this prospectus, we refer to our Series 2025A Bonds and Series 2025B Bonds, which are offered hereby, as the
“bonds.” We refer to all of our outstanding First and Refunding Mortgage Bonds as our “first mortgage bonds.”

S-1

FORWARD-LOOKING STATEMENTS This prospectus and the documents they incorporate by reference contain “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements reflect our current expectations and projections about future events based on our knowledge of present facts and circumstances and assumptions about future events and include any statement that does not directly relate to a historical or current fact. In this prospectus and elsewhere, the words “expects,” “believes,” “anticipates,” “estimates,” “projects,” “intends,” “plans,” “probable,” “may,” “will,” “could,” “would,” “should,” “targets,” and variations of such words and similar expressions, or discussions of strategy or of 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 us, include, but are not limited to:

| • |     | our ability to recover 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 our ability to execute our strategy, including the impact of                  
 affordability on the