Spring Hill Road
Worcester County, Massachusetts · EIA plant ID 59839 · Operator: AES Distributed Energy
Nameplate2MWSummer 2 MW
Generators1in service
Net generation0GWh12 mo to Aug 2026
Capacity factor2%solar units, summer MW
Heat rate—thermal plants only
First online2015
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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) |
|---|---|---|---|
| 2015 | 1 | 72.4% | — |
| 2016 | 3.2 | 19.2% | — |
| 2017 | 2.7 | 16.3% | — |
| 2018 | 2.8 | 16.9% | — |
| 2019 | 2.9 | 17.6% | — |
| 2020 | 2.7 | 15.9% | — |
| 2021 | 2.8 | 16.7% | — |
| 2022 | 2.9 | 17.2% | — |
| 2023 | 2.7 | 16.3% | — |
| 2024 | 0.2 | 1.5% | — |
| 2025 | 0.8 | 4.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| SHRD1 | Solar Photovoltaic | PV | 1.9 | 1.9 | Dec 2015 | Operating (Out of service, expected back within the year) | — | coming soon |
Owner / operator
Operator: AES Distributed Energy. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| AES Distributed Energy | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Barre Solar III LLC | 1 MW | 5.5 km |
| Stetson Road Solar - Barre I | 2 MW | 6.6 km |
| Barre II Solar Project | 2 MW | 8.7 km |
| Williamsville Hybrid CSG | 8 MW | 10.7 km |
| Hardwick-Athol & Eagle Hill | 3 MW | 12.3 km |
| KS Solar Six LLC | 2 MW | 12.5 km |