2nd largest plant in Rhode Island · 722nd nationally
Manchester Street is a natural gas power plant in Rhode Island with a nameplate capacity of 515 MW. It generates roughly 1.7M MWh per year — enough to power about 164,230 average U.S. homes.
Its capacity factor of 38% reflects intermittent or peaking operation. At 1039 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 (515 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 | Manchester Street |
|---|---|
| Operator | Manchester Street, Llc. |
| City | Providence |
| County | Providence County |
| State | Rhode Island |
| ZIP | 02903 |
| Coordinates | 41.81670, -71.40420 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| G10A | Natural Gas Fired Combined Cycle | Natural Gas | 125 MW | Operating | 1995 |
| G11A | Natural Gas Fired Combined Cycle | Natural Gas | 125 MW | Operating | 1995 |
| GE9A | Natural Gas Fired Combined Cycle | Natural Gas | 125 MW | Operating | 1995 |
| GE10 | Natural Gas Fired Combined Cycle | Natural Gas | 48.0 MW | Operating | 1995 |
| GE11 | Natural Gas Fired Combined Cycle | Natural Gas | 46.0 MW | Operating | 1995 |
| GEN9 | Natural Gas Fired Combined Cycle | Natural Gas | 46.0 MW | Operating | 1995 |
| CO₂ | 895.9k metric tons |
|---|---|
| SO₂ | 6 metric tons |
| NOₓ | 220 metric tons |
| CO₂ Rate | 1039 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 | NPCC |
|---|---|
| Balancing Authority | Iso New England 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.