Gary Works — United States of America
Gas power plant in Indiana, United States of America. Approximate location 41.6224, -87.3289.
GasIndianaUnited States of AmericaSteam
Gary Works is a 161 MW gas power station in Indiana, United States of America. It is operated by United States Steel-Gary. Based on reported annual generation of 1,233 GWh, it can supply roughly 352k homes. It ranks #2197 of 10,884 United States of America power plants by installed capacity. Commissioned in 1997, it is around 29 years old — long-established. 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).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0050733.
Data status
Known data
Calculated from dataset
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000407459; fuel: WRI GPPD
In context: how this plant compares
At 161 MW, Gary Works is well above the median gas plant in United States of America (121.2 MW). Technically it is described as Steam. Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Load factor
- 87%, from 1,233 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%
- Generation trend
- 811 GWh in 2013 and 1,233 GWh in 2019 (+52%)
- Highest and lowest year
- 2019: 1,233 GWh; 2015: 708 GWh
- Share of United States of America gas capacity
- less than 0.1% of 789,950 MW across 2,165 plants in this dataset
- Age among peers
- 782 of 1,973 dated gas plants in United States of America are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Reported generation trend
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by United States Steel-Gary.
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 hot-summer humid continental climate (Köppen Dfa) — Northern Hemisphere, latitude 41.6°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 34% 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: 71/100 — this site sits in the top third of the power plants we cover by heating degree-days.
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.
Site climate & environmental severity
This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with thermal cycling the leading environmental stress.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby plants
The #990 largest gas power plant of 2165 in United States of America by capacity.
United States of America has 2165 gas power plants in this dataset, together about 789,950 MW of capacity.
Nearby power plants
- Dean Mitchell Generating Station · Coal · 522 MW · Indiana
- Heat Recovery Coke Facility · Cogeneration · 90 MW · Indiana
- Indiana Harbor E 5 AC Station · Gas · 90 MW · Indiana
- Expander Turbine · Gas · 20 MW · Indiana
- Hobart Solar LLC · Solar · 1 MW · Indiana
- ArcelorMittal Indiana Harbor West · Gas · 152 MW · Indiana
Location
Coordinates 41.6224, -87.3289 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Gary Works?
Gary Works is a 161 MW gas power plant in Indiana, United States of America, commissioned in 1997.
How much electricity does Gary Works generate?
Gary Works generates about 1,233 GWh of electricity per year.
Who operates Gary Works?
Gary Works is operated by United States Steel-Gary.