Wansley Combined Cycle
Heard County, Georgia · EIA plant ID 55965 · Operator: Southern Power Co
Nameplate1,239MWSummer 1,185 MW
Generators6in service
Net generation7,456GWh12 mo to Aug 2026
Capacity factor46%gas/coal/oil units, summer MW
Heat rate7,060Btu/kWhfossil units, electric fuel, HHV
First online2002Runs as baseload
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), 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) |
|---|---|---|---|
| 2002 | 2,428.1 | — | — |
| 2003 | 1,678.8 | 18.0% | 7,228 |
| 2004 | 1,621.7 | 17.3% | 7,337 |
| 2005 | 2,277.9 | 23.0% | 7,407 |
| 2006 | 2,329.7 | 23.5% | 7,323 |
| 2007 | 2,530.5 | 25.6% | 7,343 |
| 2008 | 2,625.6 | 26.5% | 7,235 |
| 2009 | 3,850.5 | 38.5% | 7,062 |
| 2010 | 5,554.8 | 55.5% | 7,032 |
| 2011 | 6,051.3 | 60.4% | 7,003 |
| 2012 | 6,890.8 | 68.6% | 7,035 |
| 2013 | 4,358.6 | 43.5% | 7,079 |
| 2014 | 5,965.2 | 59.6% | 7,070 |
| 2015 | 7,860.5 | 78.3% | 7,029 |
| 2016 | 7,072 | 70.0% | 7,067 |
| 2017 | 8,707.9 | 86.4% | 6,948 |
| 2018 | 8,655.1 | 83.4% | 6,971 |
| 2019 | 8,846.8 | 85.2% | 7,003 |
| 2020 | 8,405.9 | 80.8% | 7,001 |
| 2021 | 7,730.3 | 74.5% | 7,000 |
| 2022 | 8,994 | 86.7% | 6,986 |
| 2023 | 9,055.1 | 87.3% | 7,029 |
| 2024 | 7,831 | 75.3% | 7,072 |
| 2025 | 7,632.7 | 73.5% | 7,045 |
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 |
|---|---|---|---|---|---|---|---|---|
| CT6A | Natural Gas Fired Combined Cycle | CT | 203.1 | 176.8 | Jun 2002 | Operating | — | coming soon |
| CT6B | Natural Gas Fired Combined Cycle | CT | 203.1 | 176.8 | Jun 2002 | Operating | — | coming soon |
| CT7A | Natural Gas Fired Combined Cycle | CT | 203.1 | 175.6 | Jun 2002 | Operating | — | coming soon |
| CT7B | Natural Gas Fired Combined Cycle | CT | 203.1 | 175.6 | Jun 2002 | Operating | — | coming soon |
| ST6 | Natural Gas Fired Combined Cycle | CA | 213.3 | 240 | Jun 2002 | Operating | — | coming soon |
| ST7 | Natural Gas Fired Combined Cycle | CA | 213.3 | 240 | Jun 2002 | Operating | — | coming soon |
| 6 | — | CA | 194.8 | 167.5 | Jun 2002 | not_current | — | coming soon |
| 7 | — | CA | 194.8 | 167.5 | Jun 2002 | not_current | — | coming soon |
| CT6 | — | CT | 185.6 | 159.6 | Jun 2002 | not_current | — | coming soon |
| CT7 | — | CT | 185.6 | 159.5 | Jun 2002 | not_current | — | 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).
| Southern Power Co | 100.0% | 1,239 MW |
Nearby plants
Within 80 km.
| Chattahoochee Energy Facility | 540 MW | 0.2 km |
| Wansley Unit 9 | 594 MW | 0.4 km |
| Hawk Road Facility | 495 MW | 6.8 km |
| Tenaska Georgia Generation Facility | 1,099 MW | 7 km |
| Yates | 807 MW | 14.3 km |
| Kimberly-Clark Solar | 2 MW | 45.2 km |