Hopkinton CSG
Middlesex County, Massachusetts · EIA plant ID 62760 · Operator: Altus Power America Management, LLC
Nameplate2MWSummer 2 MW
Generators1in service
Net generation3GWh12 mo to Dec 2025
Capacity factor16%solar units, summer MW
Heat rate—thermal plants only
First online2019
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) |
|---|---|---|---|
| 2019 | 1.8 | 13.7% | — |
| 2020 | 2.9 | 16.5% | — |
| 2021 | 2.8 | 16.0% | — |
| 2022 | 2.8 | 16.3% | — |
| 2023 | 2.7 | 15.5% | — |
| 2024 | 2.8 | 15.8% | — |
| 2025 | 2.8 | 16.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WT | Solar Photovoltaic | PV | 2 | 2 | Apr 2019 | Operating | — | coming soon |
Owner / operator
Operator: Altus Power America Management, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Altus Power America Management, LLC | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Holliston Solar CSG | 1 MW | 6.4 km |
| Bourne (MA) - Holliston I | 2 MW | 6.9 km |
| GELD Solar Farm | 2 MW | 7 km |
| Ashland Solar | 5 MW | 7.6 km |
| Milford Power LP | 249 MW | 8.4 km |
| Westborough Solar LLC | 2 MW | 9.2 km |