Elm Flats SolarUnder construction
Navarro County, Texas · EIA plant ID 67552 · Operator: Headwater Energy, LLC
375 MW under construction (Batteries, Solar Photovoltaic), first expected Sep 2027 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service · 375 MW building
Net generation—GWh12 mo
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online—
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 |
|---|---|---|---|---|---|---|---|---|
| ELMBA | Batteries | BA | 250 | 250 | planned Sep 2027 | Under construction | — | coming soon |
| ELMFL | Solar Photovoltaic | PV | 125 | 125 | planned Sep 2027 | Under construction | — | coming soon |
Owner / operator
Operator: Headwater Energy, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| Bluebonnet Prairie Wind | — | 3.4 km |
| Fence Post Solar Hybrid Project, LLC | 308 MW | 8.9 km |
| WAL565 | 1 MW | 9.4 km |
| Gaia Hybrid | 230 MW | 11.6 km |
| Main Horn Solar | — | 15.5 km |
| Armadillo Solar Center | — | 15.9 km |