Long Plain Solar
Franklin County, Massachusetts · EIA plant ID 65716 · Operator: long plain solar, llc
Nameplate2MWSummer 2 MW
Generators1in service
Net generation4GWh12 mo to Dec 2025
Capacity factor20%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) |
|---|---|---|---|
| 2021 | 3.4 | 19.7% | — |
| 2022 | 3.7 | 21.2% | — |
| 2023 | 3.4 | 19.4% | — |
| 2024 | 3.6 | 20.3% | — |
| 2025 | 3.5 | 20.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 3779 | Solar Photovoltaic | PV | 2 | 2 | Dec 2019 | Operating | — | coming soon |
Owner / operator
Operator: long plain solar, llc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| long plain solar, llc | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Whatley Renewables | 1 MW | 1 km |
| Fairview Farms Solar | 2 MW | 1.9 km |
| Whately Solar | 2 MW | 2.2 km |
| Hatfield Solar PV | 4 MW | 4.6 km |
| Sunderland Solar PV | 1 MW | 5 km |
| Montague Road Solar | 6 MW | 5.6 km |