Decatur County Solar Project
Decatur County, Georgia · EIA plant ID 59449 · Operator: Southern Power Co
Nameplate20MWSummer 19 MW
Generators1in service
Net generation42GWh12 mo to Dec 2025
Capacity factor25%solar units, summer MW
Heat rate—thermal plants only
First online2015
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) |
|---|---|---|---|
| 2015 | 0.1 | 0.4% | — |
| 2016 | 46.5 | 27.8% | — |
| 2017 | 43.9 | 26.4% | — |
| 2018 | 40.9 | 24.6% | — |
| 2019 | 43.1 | 26.0% | — |
| 2020 | 41.7 | 25.0% | — |
| 2021 | 39.7 | 23.9% | — |
| 2022 | 43.9 | 26.4% | — |
| 2023 | 41.6 | 25.0% | — |
| 2024 | 42.2 | 25.3% | — |
| 2025 | 41.8 | 25.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| DCSP1 | Solar Photovoltaic | PV | 20 | 19 | Dec 2015 | Operating | — | coming soon |
Owner / operator
Operator: Southern Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| SP Decatur County Solar, LLC | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| Bainbridge Solar | 1 MW | 0.2 km |
| Decatur Parkway Solar Project, LLC | 80 MW | 3.1 km |
| Bainbridge | 80 MW | 9.6 km |
| BE Solar LLC | 3 MW | 9.6 km |
| Decatur Solar | 200 MW | 21.1 km |
| Cool Springs Solar (Hybrid) | 253 MW | 24.7 km |