Columbia Substation
Columbia County, Georgia · EIA plant ID 64570 · Operator: Westbound Solar LLC
Nameplate2MWSummer 2 MW
Generators1in service
Net generation4GWh12 mo to Dec 2025
Capacity factor23%solar units, summer MW
Heat rate—thermal plants only
First online2020
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) |
|---|---|---|---|
| 2020 | 2.8 | 24.0% | — |
| 2021 | 4 | 22.8% | — |
| 2022 | 3.9 | 22.4% | — |
| 2023 | 3.9 | 22.3% | — |
| 2024 | 3.9 | 22.0% | — |
| 2025 | 4 | 22.6% | — |
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 ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GPCOL | Solar Photovoltaic | PV | 2 | 2 | May 2020 | Operating | — | coming soon |
Owner / operator
Operator: Westbound Solar LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Westbound Solar LLC | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| J Strom Thurmond | 362 MW | 14 km |
| Rock House Solar | — | 16.5 km |
| Columbia Bryson | 1 MW | 18.1 km |
| Stevens Creek | 18 MW | 23 km |
| Fort Gordon Solar Facility | 30 MW | 25 km |
| Sibley Mill | 2 MW | 29.8 km |