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2101.7 MW Conventional Steam Coal (1362 MW) + Natural Gas Fired Combined Cycle (740 MW) operating in Jefferson, KY — Louisville Gas and Electric Company and Kentucky Utilities Company
2,101.7 MW
Nameplate Capacity
4
Generators
units
Hybrid (2)
Technology
Conventional Steam Coal + Natural Gas Fired Combined Cycle
1974
Operating Since
Coordinates
38.0525, -85.9103
County
Jefferson, KY
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Louisville Gas & Electric Co | Louisville Gas & Electric | — |
| Owner(s) | Kentucky Utilities Co, Louisville Gas & Electric Co | PPL | — |
| Status | Operating | — | — |
The Mill Creek Generating Station is a coal-fired power plant owned and operated by Louisville Gas & Electric in the Kosmosdale neighborhood of Louisville, Kentucky. It is located on 544 acres in southwest Louisville, about 20 miles from downtown.
Read more on WikipediaThe Mill Creek power plant, located in Jefferson County, Kentucky, has a total capacity of 2101.7 MW across four generators. The plant began operating in 1974 and is owned by PPL, with Louisville Gas & Electric Co. serving as the operator. The primary fuel source is bituminous coal (BIT), but the plant also utilizes natural gas fired combined cycle technology, classifying it as a hybrid facility. Mill Creek ranks as the second largest power plant out of six in Kentucky, and tenth out of fifty nationally.
The plant operates within the balancing authority of Louisville Gas and Electric Company and Kentucky Utilities Company, and is situated in the SERC NERC region. The latest annual generation data indicates an output of 7,183,287 MWh, resulting in a capacity factor of 39.0%. Financial data is available for Mill Creek, with an installed cost of $1058.11 per kW, sourced from FERC filings.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Louisville Gas and Electric Company and Kentucky Utilities Company (LGEE)
Grid Voltage
345.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
651.6K MWh
Latest Month
7.2M MWh
Annual Generation
39.0%
Capacity Factor
CO₂ Intensity
2092 lb/MWh
NOx
2 lb/MWh
SO₂
0.864 lb/MWh
CH₄
0.249 lb/MWh
N₂O
0.036 lb/MWh
Capacity Factor
50.1%
Annual Net Gen
7541 GWh
CO₂eq
2109 lb/MWh
Subregion
SERC Tennessee Valley
Steam turbine · Louisville Gas and Electric Company · Data from 2015–2024
$1,667/kW
Installed Cost
$-148/kW
Annual CapEx
$34.6/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
Last updated 2026-04-09
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