Martin Dam
Elmore County, Alabama · EIA plant ID 16 · Operator: Alabama Power Co
Nameplate211MWSummer 182 MW
Generators4in service
Net generation287GWh12 mo to Dec 2025
Capacity factor18%hydro units, summer MW
Heat rate—thermal plants only
First online1927
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), hydro 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) |
|---|---|---|---|
| 2001 | 305.4 | 21.9% | — |
| 2002 | 236.8 | 17.0% | — |
| 2003 | 506.8 | 36.4% | — |
| 2004 | 303.2 | 18.6% | — |
| 2005 | 428.4 | 26.3% | — |
| 2006 | 250.2 | 15.3% | — |
| 2007 | 109.5 | 6.7% | — |
| 2008 | 158.3 | 9.7% | — |
| 2009 | 494.4 | 30.3% | — |
| 2010 | 397.8 | 24.4% | — |
| 2011 | 167.9 | 10.3% | — |
| 2012 | 176 | 10.8% | — |
| 2013 | 412.9 | 25.3% | — |
| 2014 | 348 | 21.4% | — |
| 2015 | 290 | 17.8% | — |
| 2016 | 304.3 | 18.6% | — |
| 2017 | 318.4 | 20.0% | — |
| 2018 | 348.5 | 21.9% | — |
| 2019 | 411.8 | 25.8% | — |
| 2020 | 533.5 | 33.4% | — |
| 2021 | 393.7 | 24.7% | — |
| 2022 | 358.6 | 22.5% | — |
| 2023 | 326.6 | 20.5% | — |
| 2024 | 305.9 | 19.1% | — |
| 2025 | 287.2 | 18.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 50.2 | 41.5 | Jan 1927 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 50.2 | 41.5 | Jan 1927 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 50.2 | 41.5 | Jan 1927 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 60 | 57.6 | Jul 1952 | 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).
| Alabama Power Co | 100.0% | 211 MW |
Nearby plants
Within 80 km.
| Yates Dam | 51 MW | 12 km |
| Thurlow Dam | 91 MW | 16.3 km |
| Jordan Dam | 100 MW | 32.9 km |
| Hillabee Energy Center | 823 MW | 35.6 km |
| Walter Bouldin Dam | 225 MW | 36.4 km |
| Mitchell Dam | 170 MW | 51.8 km |