Kearsarge Southampton
Suffolk County, New York · EIA plant ID 69954 · Operator: Kearsarge Southampton LLC
Nameplate5MWSummer 5 MW
Generators1in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—thermal plants only
First online2025
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 |
|---|---|---|---|---|---|---|---|---|
| SOUTH | Solar Photovoltaic | PV | 4.5 | 4.5 | Feb 2025 | Operating | — | coming soon |
Owner / operator
Operator: Kearsarge Southampton LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Kearsarge Southampton LLC | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| South Hampton | 12 MW | 3.6 km |
| Sterlington Greenworks LLC | 1 MW | 15.6 km |
| East Hampton | 27 MW | 16.2 km |
| East Hampton Energy Storage Center | 5 MW | 16.2 km |
| Greenport | 10 MW | 19.6 km |
| Southold | 14 MW | 19.6 km |