Michigan City — United States of America
Coal power plant in Indiana, United States of America. Approximate location 41.7208, -86.9086.
CoalIndianaUnited States of AmericaCO₂ measured
Michigan City is a 540 MW coal power station in Indiana, United States of America. It is operated by Northern Indiana Pub Serv Co. Based on reported annual generation of 1,073 GWh, it can supply roughly 307k homes. It ranks #1163 of 10,884 United States of America power plants by installed capacity. Commissioned in 1974, it is around 52 years old — an older, legacy facility. Its annual emissions of 1,477,536 t CO₂/yr (US EPA GHGRP) are equivalent to about 344k cars driven for a year. 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 USA0000997.
Data status
Known data
Calculated from dataset
Not available
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 · L100000103892; fuel: WRI GPPD
In context: how this plant compares
At 540 MW, Michigan City is around 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.
1,477,536 t CO₂/yr — in everyday terms
This facility's annual emissions are roughly equivalent to:
Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per US EPA GHGRP (measured for US EPA/EU ETS, modelled for Climate TRACE).
Key facts
- Load factor
- 23%, from 1,073 GWh of reported generation; the median for 244 coal plants in United States of America that report generation is 41%
- Generation trend
- 2,023 GWh in 2013 and 1,073 GWh in 2019 (−47%)
- Highest and lowest year
- 2014: 2,739 GWh; 2019: 1,073 GWh
- Share of United States of America coal capacity
- less than 0.1% of 621,194 MW across 802 plants in this dataset
- Age among peers
- 362 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 Northern Indiana Pub Serv Co. 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 hot-summer humid continental climate (Köppen Dfa) — Northern Hemisphere, latitude 41.7°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 38% 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: 73/100 — this site sits in the top 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 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 #404 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
- Michigan City Generating Station · Coal · 540 MW · Indiana
- Deercroft I & II LFGTE · Waste · 6.4 MW · Indiana
- Bailly nuclear power plant · Nuclear · 644 MW · Indiana
- Bailly · Gas · 37.5 MW · Indiana
- Bailly Generating Station · Coal · 604 MW · Indiana
- ArcelorMittal Burns Harbor · Gas · 176.2 MW · Indiana
Location
Coordinates 41.7208, -86.9086 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Michigan City?
Michigan City is a 540 MW coal power plant in Indiana, United States of America, commissioned in 1974.
How much electricity does Michigan City generate?
Michigan City generates about 1,073 GWh of electricity per year.
Who operates Michigan City?
Michigan City is operated by Northern Indiana Pub Serv Co.
How much CO₂ does Michigan City emit?
Michigan City has measured emissions of about 1,477,536 tonnes of CO₂ per year (US EPA GHGRP).