Orion I Solar Project
Milam County, Texas · EIA plant ID 66859 · Operator: Ben Milam Solar 1 LLC
Nameplate200MWSummer 200 MW
Generators1in service
Net generation445GWh12 mo to Aug 2026
Capacity factor25%solar units, summer MW
Heat rate—thermal plants only
First online2024
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) |
|---|---|---|---|
| 2024 | 193.4 | 26.3% | — |
| 2025 | 446.1 | 25.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| ORN1 | Solar Photovoltaic | PV | 200 | 200 | Aug 2024 | Operating | — | coming soon |
Owner / operator
Operator: Ben Milam Solar 1 LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Ben Milam Solar 1 LLC | 100.0% | 200 MW |
Nearby plants
Within 80 km.
| Orion II Solar Project | 250 MW | 7.3 km |
| BT Jungmann | 40 MW | 11.6 km |
| Orion III Solar Project | 250 MW | 12.4 km |
| Hermes Storage BESS | — | 13.6 km |
| Hermes Solar PV | — | 14.2 km |
| Cattlemen Solar Park | — | 14.7 km |