Hampden Solar PV
Hampden County, Massachusetts · EIA plant ID 62073 · Operator: NSTAR Electric Company
Nameplate4MWSummer 4 MW
Generators1in service
Net generation6GWh12 mo to Dec 2025
Capacity factor19%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 | 0.1 | 2.6% | — |
| 2020 | 6 | 19.5% | — |
| 2021 | 5.9 | 19.1% | — |
| 2022 | 6.3 | 20.7% | — |
| 2023 | 5.1 | 16.5% | — |
| 2024 | 5.9 | 19.3% | — |
| 2025 | 5.8 | 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 |
|---|---|---|---|---|---|---|---|---|
| LG390 | Solar Photovoltaic | PV | 3.5 | 3.5 | Nov 2019 | Operating | — | coming soon |
Owner / operator
Operator: NSTAR Electric Company. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| NSTAR Electric Company | 100.0% | 4 MW |
Nearby plants
Within 80 km.
| East Longmeadow Solar PV | 5 MW | 0.1 km |
| Hampden | 3 MW | 1.7 km |
| CTGB Osborn | 2 MW | 3.6 km |
| Bilton Solar | 2 MW | 4 km |
| Barrow Solar | 2 MW | 4 km |
| Blair Solar | 1 MW | 4 km |