Power plants in Cobb County, Georgia
3 operating power plants in Cobb County, Georgia, with 2,862 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
3
Nameplate capacity
2,862 MW
Net generation, 2025
17.5 TWh
2 of 3 plants reported
Largest power plants in Cobb County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Jack McDonoughNatural gas | 2,848 | 17,462 | 70.0% |
| 2 | Allatoona Substation #10Battery storage | 10 | – | – |
| 3 | Solar BESS HybridSolar and natural gas | 3.5 | 2.2 | 10.4% |
MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources
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