Harding Street

Gas power plant in Indiana, United States of America. Approximate location 39.7113, -86.1969.

GasIndianaUnited States of AmericaCO₂ reported

Harding Street is a 1,065 MW gas power station in Indiana, United States of America. It is operated by Indianapolis Power & Light Co. Based on reported annual generation of 1,028 GWh, it can supply roughly 293,714 homes. It ranks #291 of 9,833 United States of America power plants by installed capacity. Commissioned in 1978, it is around 48 years old — long-established. Its measured emissions of 1,700,381 t CO₂/yr (US EPA GHGRP) are equivalent to about 396,359 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).

1,065MW installed capacity
1,028GWh reported / yr
293,714homes powered
1,700,381t CO₂ / yr (US EPA GHGRP)
1978commissioned (~48 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0000990.

1,700,381 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

396,359passenger cars driven for a year
221,750homes' yearly energy use
28,339,683tree seedlings grown 10 years to absorb it

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

Reported generation trend

2013: 4,189 GWh20132014: 3,848 GWh20142015: 3,290 GWh20152016: 0 GWh20162017: 0 GWh20172018: 0 GWh20182019: 1,028 GWh20194k GWh

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

Owner

Operated by Indianapolis Power & Light Co. All plants by this company →

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 39.7°N — which shapes how much energy it can produce and how its output varies through the year.

11.1°Cannual mean temp
2,962heating degree-days (base 18°C)
466cooling degree-days (base 18°C)
243 melevation

Monthly mean temperature

J: -3 °CJF: -1 °CFM: 5 °CMA: 11 °CAM: 17 °CMJ: 22 °CJJ: 24 °CJA: 23 °CAS: 19 °CSO: 12 °CON: 6 °CND: 0 °CD24 °C

Heating degree-days here run 21% 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: 62/100 — 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 #119 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 39.7113, -86.1969 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Built from open public data; no personal information. Operate this site? Request a correction or removal.