WHA Southbridge Solar Park CSG
New Castle County, Delaware · EIA plant ID 61934 · Operator: Ecogy Delaware II LLC.
Nameplate1MWSummer 1 MW
Generators1in service
Net generation1GWh12 mo to Dec 2025
Capacity factor12%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) |
|---|---|---|---|
| 2018 | 0.8 | 15.8% | — |
| 2019 | 1.4 | 11.8% | — |
| 2020 | 2.2 | 17.8% | — |
| 2021 | 2.1 | 17.2% | — |
| 2022 | 1.5 | 12.4% | — |
| 2023 | 2.1 | 17.3% | — |
| 2024 | 2.1 | 17.2% | — |
| 2025 | 1.5 | 12.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 2 | Solar Photovoltaic | PV | 1.4 | 1.4 | Jun 2018 | Operating | — | coming soon |
Owner / operator
Operator: Ecogy Delaware II LLC.. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Ecogy Delaware II LLC. | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| Christiana | 55 MW | 1.1 km |
| DD Hay Road Solar 23 LLC | 1 MW | 3.3 km |
| Croda Atlas Point CHP | 4 MW | 3.4 km |
| Edge Moor | 710 MW | 4 km |
| Hay Road | 1,098 MW | 4 km |
| Chambers Cogeneration LP | retired | 6.1 km |