Parliament Solar
Waller County, Texas · EIA plant ID 69320 · Operator: Parliament Solar, LLC
Nameplate480MWSummer 480 MW
Generators2in service
Net generation766GWh12 mo to Aug 2026
Capacity factor24%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
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.
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) |
|---|---|---|---|
| 2025 | 49.2 | 2.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| PAR1 | Solar Photovoltaic | PV | 241 | 241 | Jun 2025 | Operating | — | coming soon |
| PAR2 | Solar Photovoltaic | PV | 239 | 239 | Jun 2025 | Operating | — | coming soon |
Owner / operator
Operator: Parliament Solar, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Parliament Solar, LLC | 100.0% | 480 MW |
Nearby plants
Within 80 km.
| Hockley | — | 10.3 km |
| HEB00020 | 1 MW | 19.2 km |
| Mount Whitney BESS | — | 20.1 km |
| HEB00797 | 1 MW | 22.5 km |
| Stonegate | 9 MW | 22.5 km |
| WAL5091 | 1 MW | 23.7 km |