Company: PCG-PB
Filing Date: 2025-02-13
Form Type: 10-K
Source: 0001004980-25-000010
Chunk: 118

Company: PG&E Corp
Filing Date: 2025-02-13
Form: 10-K
Item: Item 1
Chunk 118
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 operating at voltages ranging from 60 kV to 500 kV.  The Utility also operated 33 electric transmission substations with a capacity of approximately 67,000 MVA.  The Utility’s electric transmission system is interconnected with electric power systems in the Western Electricity Coordinating Council, which includes many western states, the Canadian provinces of Alberta and British Columbia, and parts of Mexico.

Decisions about expansions and maintenance of the transmission system can be influenced by decisions of the Utility’s regulators and the CAISO.

Electricity Distribution

Distribution lines allow electricity to travel at lower voltages from substations directly to customers.  The Utility’s electric distribution network consists of approximately 108,000 circuit miles of distribution lines (of which, as of December 31, 2024, approximately 27% are underground and approximately 73% are overhead), 59 transmission and distribution substations, and 603 distribution substations with a capacity of approximately 33,000 MVA.  The Utility’s distribution network interconnects with its transmission system, primarily at switching and distribution substations, where equipment reduces the high-voltage transmission voltages to lower voltages, suitable for distribution to the Utility’s customers.

These distribution substations serve as the central hubs for the Utility’s electric distribution network.  Emanating from each substation are primary and secondary distribution lines connected to local transformers and switching equipment that link distribution lines and provide delivery to customers.  In some cases, third parties, such as municipal and other utilities, who generate or procure their own power rely upon the Utility’s distribution facilities to deliver their power to them, so that they are able to resell the electricity.  The Utility operates electric distribution control center facilities in Concord, Rocklin, and Fresno, California; these control centers form a key part of the Utility’s efforts to create a smarter, more resilient grid.

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Electricity Operating Statistics

The following table shows certain of the Utility’s operating statistics from 2022 to 2024 for electricity sold or delivered, including the classification of revenues by type of service.  No single customer of the Utility accounted for 10% or more of consolidated revenues for electricity sold in 2024, 2023, or 2022.

202420232022Customers (average for the year)5,606,873 5,584,185 5,562,223 Deliveries (in GWh) (1) 74,111 72,933 77,769 Re