37th largest plant in California · 671st nationally
Cosumnes is a other fossil power plant in California with a nameplate capacity of 557 MW. It generates roughly 2.9M MWh per year — enough to power about 277,576 average U.S. homes.
Its capacity factor of 60% puts it in the middle range — running steadily but not full-time. At 847 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (557 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Cosumnes |
|---|---|
| Operator | Sacramento Municipal Util Dist |
| City | Herald |
| County | Sacramento County |
| State | California |
| ZIP | 95638 |
| Coordinates | 38.33848, -121.12398 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 2 | Natural Gas Fired Combined Cycle | Natural Gas | 197 MW | Operating | 2006 |
| 1 | Natural Gas Fired Combined Cycle | Natural Gas | 190 MW | Operating | 2006 |
| 3 | Natural Gas Fired Combined Cycle | Natural Gas | 170 MW | Operating | 2006 |
| Owner | Location | Share |
|---|---|---|
| Sacramento Financing Authority | Sacramento, CA | 10000.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| CO₂ | 1.2M metric tons |
|---|---|
| SO₂ | 6 metric tons |
| NOₓ | 57 metric tons |
| CO₂ Rate | 847 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | WECC |
|---|---|
| Balancing Authority | Balancing Authority Of Northern California |
Cosumnes is a federally registered power generation facility in California.