Guam
power plants.
Guam has 3 operating power plants in the catalog, 295 MW in all. Its operating fleet leans on natural gas, which accounts for 67.1% of operating capacity (198 MW), with solar a distant second at 32.9%. The largest operating plant in the catalog is Ukudu Power Station (198 MW, recorded start year 2025).
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Guam electricity mix
Operating installed capacity by fuel. Each row gives megawatts and its share of the operating total.
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Largest plants in Guam
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Newest plants in Guam
Operating plants with the most recent recorded start years. The catalog records years, not full commissioning dates.
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Frequently asked questions
Where does Guam get its electricity?
Across the 3 operating plants in the catalog, Guam's capacity is led by natural gas at 67.1% (198 MW), then solar at 32.9%. These are installed-capacity shares, not live generation.
What is the largest power plant in Guam?
The largest operating plant in the catalog for Guam is Ukudu Power Station, a natural gas facility with 198 MW of capacity and a recorded start year of 2025.
How many power plants does Guam have?
The catalog tracks 3 operating power plants in Guam, with 295 MW in all.
Can I see Guam's power grid on a map?
Yes. Open nrgmap at app.nrgmap.com and search Guam to fly to it. Every tracked plant is a marker sized by capacity and coloured by fuel, with the national fuel mix in the side panel.