Cayuga — United States of America
Coal power plant in Indiana, United States of America. Approximate location 39.9242, -87.4244.
CoalIndianaUnited States of America
Cayuga is a 1,175 MW coal power station in Indiana, United States of America. It is operated by Duke Energy Indiana LLC. Based on reported annual generation of 3,514 GWh, it can supply roughly 1.0 million homes. It ranks #492 of 10,884 United States of America power plants by installed capacity. Commissioned in 1973, it is around 53 years old — an older, legacy facility. In context, coal supplies about 16.3% 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 USA0001001.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Capacity provenance
The public capacity above is the current source-record value. A 2026 tracker candidate lists 1,062 MW for Cayuga Generating Station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000103880; fuel: WRI GPPD
In context: how this plant compares
At 1,175 MW, Cayuga is well above the median coal plant in United States of America (558 MW). Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Load factor
- 34%, from 3,514 GWh of reported generation; the median for 244 coal plants in United States of America that report generation is 41%
- Generation trend
- 4,527 GWh in 2014 and 3,514 GWh in 2019 (−22%)
- Highest and lowest year
- 2015: 4,993 GWh; 2019: 3,514 GWh
- Share of United States of America coal capacity
- 0.2% of 621,194 MW across 802 plants in this dataset
- Age among peers
- 346 of 745 dated coal 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 Duke Energy Indiana LLC. All plants by this company →
Local climate & thermal context
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 39.9°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 20% 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.
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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness 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 #208 largest coal power plant of 802 in United States of America by capacity.
United States of America has 802 coal power plants in this dataset, together about 621,194 MW of capacity.
Nearby power plants
- Cayuga Generating Station · Coal · 1,062 MW · Indiana
- Vermillion Energy Facility · Gas · 696 MW · Indiana
- Tilton · Gas · 188 MW · Illinois
- McDonald Solar Farm LLC · Solar · 5.2 MW · Indiana
- Vermilion power station · Coal · 182.3 MW · Illinois
- Wabash Valley Power IGCC · Gas · 192 MW · Indiana
Location
Coordinates 39.9242, -87.4244 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Cayuga?
Cayuga is a 1,175 MW coal power plant in Indiana, United States of America, commissioned in 1973.
How much electricity does Cayuga generate?
Cayuga generates about 3,514 GWh of electricity per year.
Who operates Cayuga?
Cayuga is operated by Duke Energy Indiana LLC.