Calhoun Energy Center
Calhoun County, Alabama · EIA plant ID 55409 · Operator: Alabama Power Co
Nameplate748MWSummer 704 MW
Generators4in service
Net generation413GWh12 mo to Aug 2026
Capacity factor7%gas/coal/oil units, summer MW
Heat rate10,787Btu/kWhfossil units, electric fuel, HHV
First online2003Runs as peaking
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) |
|---|---|---|---|
| 2003 | 93.1 | 2.0% | 10,671 |
| 2004 | 90.7 | 1.7% | 14,529 |
| 2005 | 232.3 | 4.3% | 10,573 |
| 2006 | 334 | 6.1% | 10,773 |
| 2007 | 455.6 | 8.3% | 10,923 |
| 2008 | 234.5 | 4.2% | 10,889 |
| 2009 | 107.1 | 1.9% | 10,764 |
| 2010 | 274.2 | 5.3% | 10,908 |
| 2011 | 221.3 | 4.0% | 10,699 |
| 2012 | 190.1 | 3.4% | 10,671 |
| 2013 | 5.9 | 0.1% | 11,202 |
| 2014 | 28.6 | 0.5% | 11,948 |
| 2015 | 4.2 | 0.1% | 12,870 |
| 2016 | 195.1 | 3.5% | 10,816 |
| 2017 | 160.1 | 2.9% | 10,793 |
| 2018 | 196.6 | 3.5% | 11,208 |
| 2019 | 334.9 | 6.0% | 10,776 |
| 2020 | 39.2 | 0.7% | 11,199 |
| 2021 | 49.9 | 0.9% | 11,592 |
| 2022 | 494.6 | 8.9% | 10,988 |
| 2023 | 25.5 | 0.4% | 14,360 |
| 2024 | 314.1 | 5.1% | 10,779 |
| 2025 | 87.6 | 1.4% | 13,763 |
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 mo426,876 MMBtu
Last month with liquid burnFeb 2026
Switch while operatingYes
Net summer MW on gas632
Net summer MW on oil632
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 |
|---|---|---|---|---|---|---|---|---|
| CAL1 | Natural Gas Fired Combustion Turbine | GT | 187 | 176 | Jan 2003 | Operating | — | coming soon |
| CAL2 | Natural Gas Fired Combustion Turbine | GT | 187 | 176 | Feb 2003 | Operating | — | coming soon |
| CAL3 | Natural Gas Fired Combustion Turbine | GT | 187 | 176 | Mar 2003 | Operating | — | coming soon |
| CAL4 | Natural Gas Fired Combustion Turbine | GT | 187 | 176 | Apr 2003 | Operating | — | coming soon |
Owner / operator
Operator: Alabama Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Harbert Power Fund V | 100.0% | 748 MW |
Nearby plants
Within 80 km.
| ANAD Solar Array | 7 MW | 4.3 km |
| Dega Solar and Storage | — | 11.9 km |
| H Neely Henry Dam | 73 MW | 23 km |
| Logan Martin Dam | 128 MW | 38.3 km |
| U S Alliance Coosa Pines | 26 MW | 45.9 km |
| Gadsden | retired | 47.2 km |