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E W Brown

Mercer County, Kentucky · EIA plant ID 1355 · Operator: Kentucky Utilities Co
Natural gasConventional Steam CoalNatural Gas Fired Combustion TurbineSolar Photovoltaic⛽ Dual-fuelBA: LGEE

125 MW under construction (Batteries), first expected May 2027 · EIA-860M

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Nameplate1,458MWSummer 1,328 MW
Generators9in service · 125 MW building
Net generation1,853GWh12 mo to Aug 2026
Capacity factor16%gas/coal/oil units, summer MW
Heat rate12,017Btu/kWhfossil units, electric fuel, HHV
First online1971Runs 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
0200400GWh2001200320052007200920112013201520172019202120232025

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%10%20%30%2005201020152020202515.9% · 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.
10,00011,00012,0002005201020152020202512,017 Btu/kWh · 12 mo
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
20013,916——
20024,005.6——
20034,126.728.6%10,464
20043,819.828.1%10,593
20053,683.427.2%10,655
20063,805.228.1%10,750
20074,106.230.3%10,553
20084,193.230.9%10,575
20092,581.419.1%10,813
20103,131.923.1%11,037
20112,570.819.6%11,527
20122,61619.9%11,360
20132,961.422.6%11,316
20143,142.724.0%11,559
20152,829.620.3%11,716
20162,266.516.2%11,911
20171,657.411.8%11,897
20182,543.518.2%11,757
20191,43012.0%11,919
20201,281.810.9%11,883
20211,113.69.5%12,102
20221,38211.8%11,894
2023964.18.2%11,955
20241,520.413.0%11,943
20251,626.514.0%11,967

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 mo8,814 MMBtu
Last month with liquid burnMay 2026
Switch while operatingYes
Net summer MW on gas484
Net summer MW on oil484
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
10Natural Gas Fired Combustion TurbineGT126121Dec 1995Operating—coming soon
11Natural Gas Fired Combustion TurbineGT126121May 1996Operating—coming soon
3Conventional Steam CoalST464412Jul 1971Operating—coming soon
5Natural Gas Fired Combustion TurbineGT123130Jun 2001Operating—coming soon
6Natural Gas Fired Combustion TurbineGT176.8146Aug 1999Operating—coming soon
7Natural Gas Fired Combustion TurbineGT176.8146Aug 1999Operating—coming soon
8Natural Gas Fired Combustion TurbineGT126121Feb 1995Operating—coming soon
9Natural Gas Fired Combustion TurbineGT126121Aug 1994Operating—coming soon
SOLARSolar PhotovoltaicPV1310May 2016Operating—coming soon
BESSBatteriesBA125125planned May 2027Under construction—coming soon
1Conventional Steam CoalST113.6106May 1957Retired Feb 2019—coming soon
2Conventional Steam CoalST179.5166Jun 1963Retired Feb 2019—coming soon

Owner / operator

Operator: Kentucky Utilities Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Kentucky Utilities Co86.0%1,253 MW
Louisville Gas & Electric Co14.0%205 MW

Nearby plants

Within 80 km.
Dix Dam28 MW0.9 km
Mother Ann Lee2 MW4.7 km
SR Turkey Creek, LLC50 MW25.2 km
AEUG Madison Solar, LLC—36.4 km
Haefling41 MW36.5 km
Cooperative Solar Two-Fayette—44.3 km