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Jack McDonough

Cobb County, Georgia · EIA plant ID 710 · Operator: Georgia Power Co
Natural gasNatural Gas Fired Combined CyclePetroleum Liquids⛽ Dual-fuelBA: SOCO
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Nameplate2,848MWSummer 2,535 MW
Generators11in service
Net generation18,668GWh12 mo to Aug 2026
Capacity factor84%gas/coal/oil units, summer MW
Heat rate6,899Btu/kWhfossil units, electric fuel, HHV
First online1971Runs 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
05001,0001,500GWh2001200320052007200920112013201520172019202120232025

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.
0%25%50%75%2005201020152020202584.1% · 12 mo

Heat rate by year

Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
6,0008,00010,000200520102015202020256,899 Btu/kWh · 12 mo
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
20012,997.7——
20023,336.9——
20033,476.268.3%9,724
20043,258.163.8%9,759
20053,643.771.6%9,662
20063,772.374.1%9,653
20073,772.874.1%9,844
20083,116.562.6%10,092
20092,072.641.7%10,631
20102,017.940.7%10,631
20112,228.746.0%10,394
201211,980.677.3%6,907
201318,13080.3%6,880
201417,021.775.4%6,955
201517,848.778.5%6,964
201617,319.677.8%6,967
201716,328.973.6%6,959
201816,799.175.7%6,970
201919,071.985.5%6,967
202018,710.684.0%6,994
202118,235.482.1%6,984
202218,428.683.0%6,933
202317,824.680.3%6,920
202417,987.580.8%6,896
202517,461.878.6%6,913

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 mo57,209 MMBtu
Last month with liquid burnFeb 2026
Switch while operatingNo
Net summer MW on gas455
Net summer MW on oil455
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 IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
3APetroleum LiquidsGT41.832May 1971Operating—coming soon
3BPetroleum LiquidsGT41.832May 1971Operating—coming soon
4Natural Gas Fired Combined CycleCA369360Dec 2011Operating—coming soon
5Natural Gas Fired Combined CycleCA369360Apr 2012Operating—coming soon
5ACTNatural Gas Fired Combined CycleCT276.3232.5Apr 2012Operating—coming soon
5BCTNatural Gas Fired Combined CycleCT276.3232.5Apr 2012Operating—coming soon
6Natural Gas Fired Combined CycleCA369345Oct 2012Operating—coming soon
6ACTNatural Gas Fired Combined CycleCT276.3233Oct 2012Operating—coming soon
6BCTNatural Gas Fired Combined CycleCT276.3233Oct 2012Operating—coming soon
CT4ANatural Gas Fired Combined CycleCT276.3237.5Dec 2011Operating—coming soon
CT4BNatural Gas Fired Combined CycleCT276.3237.5Dec 2011Operating—coming soon
1Conventional Steam CoalST299.2251Aug 1963Retired Feb 2012—coming soon
2Conventional Steam CoalST299.2251Jun 1964Retired Sep 2011—coming soon

Owner / operator

Operator: Georgia Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Georgia Power Co100.0%2,848 MW

Nearby plants

Within 80 km.
Riverwood 100 Building1 MW6.1 km
Shepherd Center6 MW7.8 km
Tech Square Microgrid1 MW9.6 km
Bank of America Plaza3 MW10.2 km
Atlanta Falcons Solar1 MW10.3 km
CNN Centerretired10.4 km