emissionhub.cc / Largest emitters / Guam
Largest greenhouse-gas emitters in Guam
9 facilities in Guam reported 1,304,859 metric tons CO2e of direct emissions to the EPA for 2023, 0.1% of the national total for reporting direct emitters. Power Plants accounts for the most (95%). Largest first.
| # | Facility | City | Sector | t CO2e |
|---|---|---|---|---|
| 1 | Marianas Energy Company | Piti | Power Plants | 407,086 |
| 2 | GUAM POWER AUTHORITY - CABRAS POWER PLANT | Piti | Power Plants | 393,807 |
| 3 | Piti 7 Combustion Turbine | Piti | Power Plants | 155,142 |
| 4 | Dededo Combustion Turbine Generating Facility | Dededo | Power Plants | 143,113 |
| 5 | Layon Municipal Solid Waste Landfill | Inarajan | Waste | 61,608 |
| 6 | Macheche Combustion Turbine | Dededo | Power Plants | 53,333 |
| 7 | Yigo Diesels | Yigo | Power Plants | 44,260 |
| 8 | Yigo Combustion Turbine | Yigo | Power Plants | 33,462 |
| 9 | Tenjo Vista Power Plant | Piti | Power Plants | 13,048 |
Source: EPA Greenhouse Gas Reporting Program, 2023 reporting year, sector-level emissions from data.epa.gov (fetched October 31, 2026). Direct emissions in metric tons CO2e as EPA totals them: emitter sectors only, biogenic CO2 reported separately. Covers facilities that report as direct emitters; most emit 25,000 t CO2e or more a year. Reference only.
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