Elm Street
Bristol County, Massachusetts · EIA plant ID 64419 · Operator: ISM Solar Dighton 3, LLC
Nameplate3MWSummer 3 MW
Generators1in service
Net generation5GWh12 mo to Dec 2025
Capacity factor19%solar units, summer MW
Heat rate—thermal plants only
First online2020
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 | 7.8 | 372.7% | — |
| 2021 | 7.5 | 30.6% | — |
| 2022 | 7.9 | 32.0% | — |
| 2023 | 8 | 32.7% | — |
| 2024 | 5.1 | 20.5% | — |
| 2025 | 4.7 | 19.4% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| ELM | Solar Photovoltaic | PV | 2.8 | 2.8 | Dec 2020 | Operating | — | coming soon |
Owner / operator
Operator: ISM Solar Dighton 3, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| ISM Solar Dighton 3, LLC | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| DG Dighton LLC CSG | 3 MW | 1.1 km |
| ISM Solar Dighton 2, LLC CSG | 2 MW | 3.6 km |
| 433 Purchase Solar NG, LLC | 3 MW | 4.6 km |
| Dighton Power Plant | 200 MW | 4.6 km |
| MA-Dighton-A | 4 MW | 4.9 km |
| Fall River Solar CSG | 2 MW | 5 km |