19th largest plant in Texas · 228th nationally
Colorado Bend Ii is a natural gas power plant in Texas with a nameplate capacity of 1,230 MW. It generates roughly 7.8M MWh per year — enough to power about 747,124 average U.S. homes.
Its capacity factor of 73% puts it in the middle range — running steadily but not full-time. At 795 lb CO₂/MWh, its emission rate sits below the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (1,230 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 | Colorado Bend Ii |
|---|---|
| Operator | Constellation Power, Inc |
| City | Wharton |
| County | Wharton County |
| State | Texas |
| ZIP | 77488 |
| Coordinates | 29.28942, -96.06540 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| STG9 | Natural Gas Fired Combined Cycle | Natural Gas | 509 MW | Operating | 2017 |
| CT7 | Natural Gas Fired Combined Cycle | Natural Gas | 361 MW | Operating | 2017 |
| CT8 | Natural Gas Fired Combined Cycle | Natural Gas | 361 MW | Operating | 2017 |
| CO₂ | 3.1M metric tons |
|---|---|
| SO₂ | 16 metric tons |
| NOₓ | 110 metric tons |
| CO₂ Rate | 795 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 | TRE |
|---|---|
| Balancing Authority | Electric Reliability Council Of Texas, Inc. |
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.