Mass Midstate Solar 2
Worcester County, Massachusetts · EIA plant ID 58276 · Operator: First Wind O&M, LLC
Nameplate5MWSummer 5 MW
Generators1in service
Net generation7GWh12 mo to Dec 2025
Capacity factor16%solar units, summer MW
Heat rate—thermal plants only
First online2014
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) |
|---|---|---|---|
| 2014 | 4.4 | 15.1% | — |
| 2015 | 7.2 | 16.4% | — |
| 2016 | 7.4 | 16.8% | — |
| 2017 | 7 | 15.9% | — |
| 2018 | 6.5 | 14.8% | — |
| 2019 | 6.9 | 15.7% | — |
| 2020 | 6.5 | 14.9% | — |
| 2021 | 6.9 | 15.7% | — |
| 2022 | 6.9 | 15.9% | — |
| 2023 | 7 | 15.9% | — |
| 2024 | 7.3 | 16.5% | — |
| 2025 | 7 | 15.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Solar Photovoltaic | PV | 5 | 5 | May 2014 | Operating | — | coming soon |
Owner / operator
Operator: First Wind O&M, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| First Wind O&M, LLC | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Morin Solar 2013 LLC | 4 MW | 0.7 km |
| Cronin Road Solar 1, LLC CSG Hybrid | 3 MW | 3.9 km |
| WYM 1250 Palmer LLC | 1 MW | 6.1 km |
| Brimfield | 2 MW | 6.2 km |
| ZPD-PT Solar Project 2017-006 LLC Hybrid | 7 MW | 6.7 km |
| 201 Sturbridge B | 2 MW | 7.2 km |