CPV St Charles Energy Center
Charles County, Maryland · EIA plant ID 56846 · Operator: CPV Maryland LLC
Nameplate775MWSummer 733 MW
Generators3in service
Net generation3,864GWh12 mo to Aug 2026
Capacity factor60%gas/coal/oil units, summer MW
Heat rate7,163Btu/kWhfossil units, electric fuel, HHV
First online2017Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2016 | 3.8 | — | — |
| 2017 | 3,822.2 | 65.7% | 7,021 |
| 2018 | 4,308.3 | 67.7% | 7,058 |
| 2019 | 4,198.2 | 66.3% | 7,100 |
| 2020 | 3,793.8 | 59.3% | 7,329 |
| 2021 | 3,792.1 | 59.0% | 7,119 |
| 2022 | 3,787.2 | 59.0% | 7,101 |
| 2023 | 4,162.4 | 64.5% | 7,202 |
| 2024 | 3,628.5 | 56.4% | 7,218 |
| 2025 | 4,718.2 | 73.5% | 7,161 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GTG1 | Natural Gas Fired Combined Cycle | CT | 223.6 | 215.3 | Feb 2017 | Operating | — | coming soon |
| GTG2 | Natural Gas Fired Combined Cycle | CT | 223.6 | 213.8 | Feb 2017 | Operating | — | coming soon |
| STGEN | Natural Gas Fired Combined Cycle | CA | 328.1 | 304.2 | Feb 2017 | Operating | — | coming soon |
Owner / operator
Operator: CPV Maryland LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| CPV Maryland LLC | 100.0% | 775 MW |
Nearby plants
Within 80 km.
| Rockfish Solar LLC | 10 MW | 3 km |
| Herbert Farm Solar | 6 MW | 8.4 km |
| Brandywine Power Facility | 289 MW | 11.3 km |
| Keys Energy Center | 831 MW | 15.2 km |
| Livingston Crossing (CSG) | 2 MW | 16.1 km |
| NRG Chalk Point CT | 94 MW | 18.1 km |