Syncarpha Puddon II Hybrid CSG
Worcester County, Massachusetts · EIA plant ID 62970 · Operator: Syncarpha Puddon II, LLC
Nameplate9MWSummer 9 MW
Generators2in service
Net generation8GWh12 mo to Dec 2025
Capacity factor20%solar units, summer MW
Heat rate—thermal plants only
First online2021
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) |
|---|---|---|---|
| 2021 | 6.5 | 17.6% | — |
| 2022 | 9.3 | 21.6% | — |
| 2024 | 9.1 | 21.0% | — |
| 2025 | 8.5 | 19.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| SYP2B | Batteries | BA | 4 | 4 | Mar 2021 | Operating | — | coming soon |
| SYP2S | Solar Photovoltaic | PV | 5 | 5 | Mar 2021 | Operating | — | coming soon |
Owner / operator
Operator: Syncarpha Puddon II, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Syncarpha Puddon II, LLC | 100.0% | 9 MW |
Nearby plants
Within 80 km.
| Syncarpha Puddon I Hybrid CSG | 9 MW | 0.6 km |
| Syncarpha Northbridge II Hybrid CSG | 8 MW | 2.3 km |
| Syncarpha Northbridge I Hybrid(CSG) | 9 MW | 2.8 km |
| Northbridge Solar | 2 MW | 3.8 km |
| Kearsarge Uxbridge | 2 MW | 4.4 km |
| Sutton Solar CSG | 2 MW | 6.5 km |