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Swenson SolarUnder construction

Stonewall County, Texas · EIA plant ID 70135 · Operator: Swenson Solar LLC
SolarERCOTBA: ERCO

600 MW under construction (Solar Photovoltaic), first expected Nov 2026 · EIA-860M

Nameplate—MWSummer — MW
Generators0in service · 600 MW building
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
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 IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
SWNSNSolar PhotovoltaicPV600600planned Nov 2026Under construction—coming soon

Owner / operator

Operator: Swenson Solar 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.
Jones City 2 Solar—21.4 km
ANSON Solar Center, LLC200 MW22 km
Anson 2 Solar—22.5 km
Jones City 1 Solar—22.8 km
Tiger Solar—25.1 km
Stonewall Solar—28.2 km