SunShiner ESSPlanned
Zavala County, Texas · EIA plant ID 68363 · Operator: SunShiner ESS LLC
200 MW planned (Batteries), first expected Jul 2029 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service
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 |
|---|---|---|---|---|---|---|---|---|
| SSESS | Batteries | BA | 200 | 200 | planned Jul 2029 | Planned | — | coming soon |
Owner / operator
Operator: SunShiner ESS 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.
| Bramble Energy Center | — | 11 km |
| OCI Alamo 5 LLC | 100 MW | 33.1 km |
| Uvalde Solar 2 | — | 34.7 km |
| Nightfall Solar | — | 37.4 km |
| AP Sunray LLC | 204 MW | 44.9 km |
| Regis Carrizo Springs | 10 MW | 46.6 km |