Welcome to the  California Energy Almanac

California Electricity Sector Overview

Electric Utility Companies

California is served by about 75 load-serving entities (LSEs). These are broken down as:

  • Investor-Owned Utilities - 6
  • Publicly Owned Utilites - 48
  • Rural Electricity Cooperatives - 4
  • Native American Utilities - 3
  • Other Electricity Service Providers - 14

A list of the utilities and LSEs in California is online at: http://energyalmanac.ca.gov/electricity/utilities.html


The five largest utilities and total electricity consumption (in 2007) are:

  1. Southern California Edison Company (SCE) - 88,208 million kliowatt-hours
  2. Pacific Gas and Electric Company (PG&E) - 85,057 million kliowatt-hours
  3. Los Angeles Department of Water and Power (LADWP) - 24,317 million kilowatt-hours
  4. San Diego Gas & Electric (SDG&E) - 20,300 million kliowatt-hours
  5. Sacramento Municipal Utility District (SMUD) - 10,917 million kliowatt-hours

California's investor-owned electric utilities send power through roughly 200,000 miles of overhead transmission and distribution lines and an additional 70,000 miles of underground lines. For a map of the major transmission lines, please see the On-Line Energy Maps page.


Power Plants

California produces roughly 70 percent of its electricity from power plants located within our state and from plants that are outside of the state but owned by California utilities. About 30 percent is imported electricity from the Pacific Northwest and the American Southwest. In 2010, the total electricity imported was 92,130 gigawatt-hours.

The installed capacity of the 1,008 in-state power plants (greater than 0.1 megwatts - MW) totals 69,709 MW. These plants produced 205,695 gigawatt-hours of electricity in 2009.

For additional information on power plants, please see the Power Plants section on the Energy Almanac.

For additional information on electricity, please see the main Electricity Section on the Energy Almanac.