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Hanging Rock Energy Facility

Gas power plant in Kentucky, United States of America. Approximate location 38.5731, -82.7833.

GasKentuckyUnited States of AmericaCO₂ reported

Hanging Rock Energy Facility is a 1,430 MW gas power station in Kentucky, United States of America. It is operated by Dynegy Hanging Rock Energy Facility. Based on reported annual generation of 9,852 GWh, it can supply roughly 2,814,885 homes. It ranks #169 of 9,833 United States of America power plants by installed capacity. Commissioned in 2003, it is around 23 years old — relatively modern. Its measured emissions of 4,157,062 t CO₂/yr (US EPA GHGRP) are equivalent to about 969,012 cars driven for a year. In context, gas supplies about 40.0% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

1,430MW installed capacity
9,852GWh reported / yr
2,814,885homes powered
4,157,062t CO₂ / yr (US EPA GHGRP)
2003commissioned (~23 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0055736.

4,157,062 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

969,012passenger cars driven for a year
542,131homes' yearly energy use
69,284,367tree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions reported to US EPA GHGRP.

Reported generation trend

2013: 6,962 GWh20132014: 7,952 GWh20142015: 9,182 GWh20152016: 9,717 GWh20162017: 7,834 GWh20172018: 9,286 GWh20182019: 9,852 GWh201910k GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Dynegy Hanging Rock Energy Facility.

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 38.6°N — which shapes how much energy it can produce and how its output varies through the year.

12.1°Cannual mean temp
2,589heating degree-days (base 18°C)
474cooling degree-days (base 18°C)
228 melevation

Monthly mean temperature

J: -1 °CJF: 2 °CFM: 6 °CMA: 12 °CAM: 17 °CMJ: 21 °CJJ: 24 °CJA: 23 °CAS: 20 °CSO: 13 °CON: 7 °CND: 2 °CD24 °C

Heating degree-days here run 5% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 52/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

A gas turbine here also runs ~0% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

How it compares & nearby plants

The #52 largest gas power plant of 1818 in United States of America by capacity.

United States of America has 1818 gas power plants in this dataset, together about 546,436 MW of capacity.

Nearby power plants

Location

Coordinates 38.5731, -82.7833 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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