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