Company: SREA
Filing Date: 2025-02-25
Form Type: 10-K
Source: 0001032208-25-000012
Chunk: 61

Company: SEMPRA
Filing Date: 2025-02-25
Form: 10-K
Item: Item 1A
Chunk 61
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▪Sempra Texas Utilities

▪Sempra Infrastructure

SDG&E and SoCalGas each has one reportable segment.

2024 Form 10-K  |  12

Sempra California

SDG&E

SDG&E is a regulated public utility that provides electric services to a population of, at December 31, 2024, approximately 3.6 million and natural gas services to approximately 3.3 million of that population, covering an approximate 4,100 square mile service territory in Southern California that encompasses San Diego County and an adjacent portion of Orange County. 

SDG&E’s assets at December 31, 2024 covered the following territory:

We describe SDG&E’s electric utility operations below. We describe SDG&E’s natural gas utility operations below in “Sempra California’s Natural Gas Utility Operations.” For a discussion of the risks and uncertainties facing SDG&E’s business, see “Part I – Item 1A. Risk Factors” and “Part II – Item 7. MD&A – Capital Resources and Liquidity – Sempra California.”

Electric Transmission and Distribution System. Service to SDG&E’s customers is supported by its electric transmission and distribution system, which includes substations and overhead and underground lines. These electric facilities are primarily in the San Diego, Imperial and Orange counties of California, and in Arizona and Nevada and consisted of 2,021 miles of transmission lines, 24,149 miles of distribution lines and 159 substations at December 31, 2024. Occasionally, various areas of the service territory require expansion to accommodate customer growth and maintain reliability and safety. 

SDG&E’s 500-kV Southwest Powerlink transmission line, which is shared with Arizona Public Service Company and Imperial Irrigation District, extends from Palo Verde, Arizona to San Diego, California. SDG&E’s share of the line is 1,163 MW, although it can be less under certain system conditions. SDG&E’s Sunrise Powerlink is a 500-kV transmission line constructed by SDG&E and operated by the California ISO. Both of these lines together provide SDG&E with import capability of 3,900 MW of power.

2024 Form 10-K  |  13

Mexico’s Baja California transmission system is connected to SDG&E’s system via two 230-kV interconnections with combined capacity of up to 600 MW in the north-to-south direction and 800 MW in the south-to-north direction. However