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Guam   Guam Profile

Territory Profile and Energy Estimates

Profile Overview

Quick Facts

  • In 2023, the residential sector accounted for 34% of Guam's electricity use, the commercial sector accounted for 33%, the U.S. military for 20%, and Guam’s government for 12%.
  • The Guam Power Authority has about 464 megawatts of generation capacity, four-fifths of which is oil-fired generation capacity.
  • Sales of diesel fuel—used mostly to generate electricity—make up 53% of Guam’s petroleum sales. Motor gasoline accounts for 26%, jet fuel for 19%, and propane makes up most of the rest of the island’s petroleum sales.
  • In 2023, Guam's average residential electricity price was $0.38 per kilowatthour (kWh), more than two times the average U.S. rate of $0.16/kWh.
  • Guam's renewable portfolio standard requires that 50% of the island's electricity sales come from renewables by 2035 and 100% by 2045. In 2023, renewables accounted for about 6% of Guam's electricity generation.

Last Updated: April 17, 2025