Samson Solar Energy III LLC
Lamar County, Texas · EIA plant ID 63883 · Operator: Invenergy Services LLC
Nameplate250MWSummer 250 MW
Generators1in service
Net generation301GWh12 mo to Aug 2026
Capacity factor14%solar units, summer MW
Heat rate—thermal plants only
First online2022
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) |
|---|---|---|---|
| 2022 | 29.4 | 8.0% | — |
| 2023 | 380.2 | 17.4% | — |
| 2024 | 212 | 9.7% | — |
| 2025 | 278 | 12.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Solar Photovoltaic | PV | 250 | 250 | Nov 2022 | Operating | — | coming soon |
Owner / operator
Operator: Invenergy Services LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Invenergy Services LLC | 100.0% | 250 MW |
Nearby plants
Within 80 km.
| Impact Solar 1 | 199 MW | 4.8 km |
| Mockingbird Solar Center | 471 MW | 7.4 km |
| Delilah Solar Energy II LLC | 310 MW | 10.2 km |
| Talco Solar Project | 8 MW | 19 km |
| Eagle Springs Hybrid | — | 20.2 km |
| SGT Hoskins Solar Project Hybrid | — | 22.8 km |