Cunningham Storage
Hunt County, Texas · EIA plant ID 65410 · Operator: Acciona Energy USA Global, LLC
Nameplate190MWSummer 190 MW
Generators1in service
Net generation-17GWh12 mo to Aug 2026
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online2023
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), 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2023 | -4.4 | — | — |
| 2024 | -11.5 | — | — |
| 2025 | -15.7 | — | — |
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 |
|---|---|---|---|---|---|---|---|---|
| SPUT | Batteries | BA | 190 | 190 | Aug 2023 | Operating | — | coming soon |
Owner / operator
Operator: Acciona Energy USA Global, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Acciona Energy USA Global, LLC | 100.0% | 190 MW |
Nearby plants
Within 80 km.
| BT Signal Ranch | 50 MW | 2.2 km |
| Barrett Solar Project | 125 MW | 17.2 km |
| Powerlane Plant | 112 MW | 19.1 km |
| Sterling Solar (TX) | 10 MW | 20.1 km |
| Ables Springs Solar & Storage | 100 MW | 22.9 km |
| Mystic Springs Renewable Energy (Hybrid) | — | 23 km |