46th largest plant in Texas · 386th nationally
Green Power 2 is a natural gas power plant in Texas with a nameplate capacity of 861 MW. It generates roughly 3.8M MWh per year — enough to power about 360,461 average U.S. homes.
Its capacity factor of 50% puts it in the middle range — running steadily but not full-time. At 640 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 (861 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 | Green Power 2 |
|---|---|
| Operator | South Houston Green Power Llc |
| City | Texas City |
| County | Galveston County |
| State | Texas |
| ZIP | 77590 |
| Coordinates | 29.37810, -94.93277 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| ST805 | Natural Gas Fired Combined Cycle | Natural Gas | 250 MW | Out of Service | 2009 |
| TR1 | Natural Gas Fired Combined Cycle | Natural Gas | 167 MW | Operating | 2003 |
| TR2 | Natural Gas Fired Combined Cycle | Natural Gas | 167 MW | Operating | 2003 |
| TR3 | Natural Gas Fired Combined Cycle | Natural Gas | 167 MW | Operating | 2003 |
| ST1 | Natural Gas Fired Combined Cycle | Natural Gas | 110 MW | Operating | 2003 |
| Owner | Location | Share |
|---|---|---|
| Marathon Petroleum Company Lp | Findlay, OH | 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 | 27 metric tons |
| NOₓ | 108 metric tons |
| CO₂ Rate | 640 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.