Hartwell Energy Facility
Hart County, Georgia · EIA plant ID 54538 · Operator: Oglethorpe Power Corporation
Nameplate360MWSummer 298 MW
Generators2in service
Net generation97GWh12 mo to Dec 2025
Capacity factor4%gas/coal/oil units, summer MW
Heat rate13,841Btu/kWhfossil units, electric fuel, HHV
First online1994Runs as peaking
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), gas/coal/oil 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 282.8 | 10.8% | 13,226 |
| 2002 | 277.8 | 10.5% | 12,337 |
| 2003 | 146.5 | 5.5% | 13,314 |
| 2004 | 119.8 | 4.5% | 13,201 |
| 2005 | 135.7 | 5.1% | 12,793 |
| 2006 | 156.8 | 5.9% | 12,684 |
| 2007 | 211.9 | 8.1% | 12,910 |
| 2008 | 48.3 | 1.8% | 13,400 |
| 2009 | 73.3 | 2.8% | 12,846 |
| 2010 | 106.1 | 4.1% | 12,968 |
| 2011 | 218.5 | 8.4% | 13,057 |
| 2012 | 68.9 | 2.7% | 13,716 |
| 2013 | 20.9 | 0.8% | 15,523 |
| 2014 | 30.9 | 1.2% | 13,712 |
| 2015 | 38.1 | 1.5% | 12,632 |
| 2016 | 40 | 1.6% | 12,610 |
| 2017 | 91.9 | 3.6% | 12,330 |
| 2018 | 183.7 | 7.0% | 13,192 |
| 2019 | 357.1 | 13.7% | 13,677 |
| 2020 | 186.9 | 7.1% | 12,113 |
| 2021 | 176.7 | 6.8% | 12,415 |
| 2022 | 290.5 | 11.1% | 12,523 |
| 2023 | 207.1 | 7.9% | 12,306 |
| 2024 | 174.9 | 6.7% | 12,635 |
| 2025 | 96.7 | 3.7% | 13,841 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo52,190 MMBtu
Last month with liquid burnDec 2025
Switch while operatingYes
Net summer MW on gas302
Net summer MW on oil302
Time gas → oilup to 1 h (EIA 1H)
Time oil → gasup to 1 h (EIA 1H)
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 |
|---|---|---|---|---|---|---|---|---|
| MAG1 | Natural Gas Fired Combustion Turbine | GT | 180 | 149.2 | Apr 1994 | Operating | — | coming soon |
| MAG2 | Natural Gas Fired Combustion Turbine | GT | 180 | 148.3 | Apr 1994 | Operating | — | coming soon |
Owner / operator
Operator: Oglethorpe Power Corporation. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Oglethorpe Power Corporation | 100.0% | 360 MW |
Nearby plants
Within 80 km.
| Hartwell Energy Facility | — | 0.1 km |
| Hartwell Lake | 420 MW | 1.9 km |
| John S Rainey | 1,154 MW | 4.3 km |
| Rocky River (SC) | 4 MW | 21.4 km |
| Anderson (SC) | 2 MW | 21.6 km |
| Franklin Milliken | 3 MW | 28 km |