Costco Wholesale operates 2 power plants across 1 country, with a combined installed capacity of 6 MW. Its plants with measured data emit a combined 5,491 t CO₂/yr.
| Plant | Fuel | Country | MW | t CO₂/yr |
|---|---|---|---|---|
| Mira Loma | Solar | United States of America | 3 | 5,491 |
| Costco Lake Drive | Gas | United States of America | 3 | — |
Ownership & capacity: WRI Global Power Plant Database (CC BY 4.0). Measured CO₂ where reported to EPA/EU ETS/Climate TRACE.