Montague Road Solar
Hampshire County, Massachusetts · EIA plant ID 64042 · Operator: Montague Road Solar, LLC
Nameplate6MWSummer 6 MW
Generators2in service
Net generation4GWh12 mo to Dec 2025
Capacity factor13%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) |
|---|---|---|---|
| 2020 | 5 | 15.9% | — |
| 2021 | 4.9 | 15.5% | — |
| 2022 | 5.2 | 16.5% | — |
| 2023 | 3.9 | 12.4% | — |
| 2024 | 4.8 | 15.0% | — |
| 2025 | 4.2 | 13.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 3958 | Solar Photovoltaic | PV | 3.6 | 3.6 | Dec 2019 | Operating | — | coming soon |
| 39581 | Batteries | BA | 2 | 2 | Jan 2024 | Operating | — | coming soon |
Owner / operator
Operator: Montague Road Solar, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Montague Road Solar, LLC | 100.0% | 6 MW |
Nearby plants
Within 80 km.
| Sunderland Solar PV | 1 MW | 0.9 km |
| Pulpit Hill | 5 MW | 1.3 km |
| Hatfield Solar PV | 4 MW | 3 km |
| UMASS | 4 MW | 3.4 km |
| UMass PV Lot 49 | 1 MW | 3.5 km |
| UMass PV Lot 22 | 4 MW | 3.5 km |