Town of Sharon Portfolio -Mt St LandfillUnder construction
Norfolk County, Massachusetts · EIA plant ID 68543 · Operator: Mountain Street Solar Project 2019, LLC
11 MW under construction (Batteries, Solar Photovoltaic), first expected Jan 2027 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service · 11 MW building
Net generation—GWh12 mo
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online—
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.
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 |
|---|---|---|---|---|---|---|---|---|
| 3850B | Batteries | BA | 5.7 | 5.7 | planned Jan 2027 | Under construction | — | coming soon |
| 3850G | Solar Photovoltaic | PV | 5 | 5 | planned Jan 2027 | Under construction | — | coming soon |
Owner / operator
Operator: Mountain Street Solar Project 2019, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| Town of Foxborough - Landfill (SREC II) CSG | 1 MW | 5.2 km |
| Canton | 5 MW | 5.3 km |
| DG Foxborough Elm CSG | 2 MW | 5.4 km |
| 1 Commercial | 2 MW | 6.6 km |
| Stone Hill Solar CSG | 2 MW | 7.5 km |
| Shuman Solar | 2 MW | 7.8 km |