Middleton Solar Park
Essex County, Massachusetts · EIA plant ID 63214 · Operator: Novis Renewables, LLC
Nameplate8MWSummer 8 MW
Generators2in service
Net generation7GWh12 mo to Dec 2025
Capacity factor15%solar units, summer MW
Heat rate—thermal plants only
First online2018
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) |
|---|---|---|---|
| 2019 | 7.2 | 16.5% | — |
| 2020 | 7.8 | 17.8% | — |
| 2021 | 7.5 | 17.2% | — |
| 2022 | 8.1 | 18.7% | — |
| 2023 | 7.5 | 17.4% | — |
| 2024 | 6.8 | 15.8% | — |
| 2025 | 6.6 | 15.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| MDB02 | Batteries | BA | 3 | 3 | Dec 2019 | Operating | — | coming soon |
| MDL01 | Solar Photovoltaic | PV | 5 | 5 | Jun 2018 | Operating | — | coming soon |
Owner / operator
Operator: Novis Renewables, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Novis Renewables, LLC | 100.0% | 8 MW |
Nearby plants
Within 80 km.
| Beverly | 2 MW | 7.2 km |
| MMWEC Simple Cycle Gas Turbine | 65 MW | 7.2 km |
| Waters River | 44 MW | 7.2 km |
| IXYS - Beverly | 3 MW | 7.2 km |
| Rousselot Inc | retired | 8.3 km |
| Minuteman Energy Storage | 5 MW | 8.3 km |