21st largest plant in California · 514th nationally
Valley (Ca) is a natural gas power plant in California with a nameplate capacity of 691 MW. It generates roughly 1.5M MWh per year — enough to power about 143,715 average U.S. homes.
Its capacity factor of 25% reflects intermittent or peaking operation. At 834 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 (691 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 | Valley (Ca) |
|---|---|
| Operator | Los Angeles Department Of Water & Power |
| City | Sun Valley |
| County | Los Angeles County |
| State | California |
| ZIP | 91352 |
| Coordinates | 34.24499, -118.39133 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 8 | Natural Gas Fired Combined Cycle | Natural Gas | 264 MW | Operating | 2003 |
| 6 | Natural Gas Fired Combined Cycle | Natural Gas | 183 MW | Operating | 2003 |
| 7 | Natural Gas Fired Combined Cycle | Natural Gas | 183 MW | Operating | 2003 |
| 3 | Natural Gas Steam Turbine | Natural Gas | 173 MW | Retired | 1955 |
| 4 | Natural Gas Steam Turbine | Natural Gas | 173 MW | Retired | 1956 |
| 1 | Natural Gas Steam Turbine | Natural Gas | 100 MW | Retired | 1954 |
| 2 | Natural Gas Steam Turbine | Natural Gas | 100 MW | Retired | 1954 |
| 5 | Natural Gas Fired Combustion Turbine | Natural Gas | 60.5 MW | Operating | 2001 |
| CO₂ | 629.0k metric tons |
|---|---|
| SO₂ | 3 metric tons |
| NOₓ | 48 metric tons |
| CO₂ Rate | 834 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 | Los Angeles Department Of Water And Power |
Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.