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Stoneridge Solar, LLC

Milam County, Texas · EIA plant ID 69027 · Operator: RWE Clean Energy
SolarSolar PhotovoltaicERCOTBA: ERCO

100 MW under construction (Batteries), first expected Dec 2026 · EIA-860M

Nameplate200MWSummer 200 MW
Generators1in service · 100 MW building
Net generation422GWh12 mo to Aug 2026
Capacity factor29%solar units, summer MW
Heat rate—thermal plants only
First online2025

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
02040GWh2026

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.
0%25%50%75%20252026202728.9% · 12 mo

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
YearNet GWhCapacity factorHeat rate (Btu/kWh)
2025256.587.6%—

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
SSPVSolar PhotovoltaicPV200200Nov 2025Operating—coming soon
SSBABatteriesBA100100planned Dec 2026Under construction—coming soon

Owner / operator

Operator: RWE Clean Energy. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
RWE Clean Energy100.0%200 MW

Nearby plants

Within 80 km.
Walleye Solar (Sandow II)—2.4 km
Gransolar Texas One, LLC50 MW5.4 km
Adelite Storage Project LLC—11.2 km
Sandow Lakes Energy Station—18.4 km
TX21 River Valley Storage 250 MW29.1 km
TX19 River Valley Storage 150 MW29.2 km