Cannonball Solar (CSG)
Frederick County, Maryland · EIA plant ID 66867 · Operator: aes clean energy
Nameplate2MWSummer 2 MW
Generators1in service
Net generation3GWh12 mo to Dec 2025
Capacity factor19%solar units, summer MW
Heat rate—thermal plants only
First online2024
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), solar 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2024 | 1.5 | 14.2% | — |
| 2025 | 3.3 | 19.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| CBALL | Solar Photovoltaic | PV | 2 | 2 | Jun 2024 | Operating | — | coming soon |
Owner / operator
Operator: aes clean energy. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Cannonball Solar, LLC | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Baker Point | 9 MW | 5.3 km |
| Biggs Ford Solar Center | 15 MW | 7.9 km |
| LeGore Bridge Solar Center | 20 MW | 9.7 km |
| Fort Detrick Solar PV | 22 MW | 12.2 km |
| Mount Saint Mary's | 14 MW | 15.6 km |
| Francis Scott Key Mall | 2 MW | 17.8 km |