Ring Road
Plymouth County, Massachusetts · EIA plant ID 67119 · Operator: Greenbacker Renewable Energy Corporation
Nameplate4MWSummer 4 MW
Generators2in service
Net generation2GWh12 mo to Dec 2025
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online2025
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), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
No capacity factor available.
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) |
|---|---|---|---|
| 2025 | 2 | — | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 686 | Solar Photovoltaic | PV | 2 | 2 | Jun 2025 | Operating | — | coming soon |
| 686B | Batteries | BA | 2 | 2 | Jun 2025 | Operating | — | coming soon |
Owner / operator
Operator: Greenbacker Renewable Energy Corporation. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Greenbacker Renewable Energy Corporation | 100.0% | 4 MW |
Nearby plants
Within 80 km.
| Upland | 7 MW | 1.4 km |
| Plymouth Site 1 | 4 MW | 1.7 km |
| Plympton Main Street Solar, LLC | 5 MW | 2 km |
| Brook Street Solar 1 CSG | 5 MW | 2.2 km |
| Plympton Lake Street Solar | 2 MW | 3.1 km |
| Spring Street Solar 1 CSG | 2 MW | 3.9 km |