ENGIE Solidago Solar Project - Hybrid
New Castle County, Delaware · EIA plant ID 65304 · Operator: engie solidago solar llc
13 MW planned (Batteries), first expected Jun 2027 · EIA-860M
Nameplate50MWSummer 50 MW
Generators1in service
Net generation101GWh12 mo to Aug 2026
Capacity factor23%solar units, summer MW
Heat rate—thermal plants only
First online2022
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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) |
|---|---|---|---|
| 2022 | 0.9 | 2.4% | — |
| 2023 | 93 | 21.2% | — |
| 2024 | 97 | 22.1% | — |
| 2025 | 97.5 | 22.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| SOLAR | Solar Photovoltaic | PV | 50 | 50 | Dec 2022 | Operating | — | coming soon |
| BESS | Batteries | BA | 12.5 | 12.5 | planned Jun 2027 | Planned | — | coming soon |
Owner / operator
Operator: engie solidago solar llc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| engie solidago solar llc | 100.0% | 50 MW |
Nearby plants
Within 80 km.
| Maryland Line Road Solar | — | 2.7 km |
| Grears Corner Solar | — | 4.4 km |
| Blue Star | 8 MW | 9.7 km |
| Cedar Creek Solar | — | 16.4 km |
| Warren F Sam Beasley Generation Station | 96 MW | 17 km |
| DG AMP Solar Smyrna | 1 MW | 17.1 km |