Kalkaska CT #1

Gas power plant in Michigan, United States of America. Approximate location 44.6889, -85.2019.

GasMichiganUnited States of AmericaOCGTCO₂ measured

Kalkaska CT #1 is a 60 MW gas power plant in Michigan, United States of America. It is operated by Michigan Public Power Agency. Based on reported annual generation of 25 GWh, it can supply roughly 7.3k homes. It ranks #3472 of 10,938 United States of America power plants by installed capacity. Commissioned in 2003, it is around 23 years old — relatively modern. Its annual emissions of 32,327 t CO₂/yr (US EPA GHGRP) are equivalent to about 7.5k 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).

60Source-backed capacity
25GWh reported / yr
7,257homes powered
32,327t CO₂ / yr (US EPA GHGRP)
2003commissioned (~23 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0007984.

Data status

Known data

FacilityKalkaska CT #1 WRI
CountryUnited States of America · Michigan WRI
Coordinates44.6889, -85.2019 WRI
FuelGas WRI
MW installed capacity60 MW WRI source record; scope not independently normalised
OwnerMichigan Public Power Agency WRI
Commissioned2003 WRI
TechnologyOCGT WRI
GWh reported / yr25 GWh/yr WRI
CO₂ emissions32,327 t CO₂/yr measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#3472 of 10938 calculated
Fuel-specific rank in country#1303 of 2165 calculated
Capacity vs country/fuel peers0.50× · 121 MW median · 2165 peers calculated
Homes-powered equivalent7,257 calculated from reported generation
Climate6.4°C · HDD 4,272 derived from coordinates
Environmental severityC3 · 33/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 (location L100000402079); fuel: WRI source-record fuel

In context: how this plant compares

At 60 MW, Kalkaska CT #1 is below the median gas plant in United States of America (121 MW). Technically it is described as OCGT. 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.

32,327 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

7.5kpassenger cars driven for a year
4.2khomes' yearly energy use
539ktree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per US EPA GHGRP (measured for US EPA/EU ETS, modelled for Climate TRACE).

Reported generation trend

2013: 28 GWh20132014: 22 GWh20142015: 41 GWh20152016: 44 GWh20162017: 18 GWh20172018: 38 GWh20182019: 25 GWh201944 GWh

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

Owner

Operated by Michigan Public Power Agency.

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 warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 44.7°N — which shapes how much energy it can produce and how its output varies through the year.

6.4°Cannual mean temp
4,272heating degree-days (base 18°C)
69cooling degree-days (base 18°C)
340 melevation

Monthly mean temperature

J: -8 °CJF: -7 °CFM: -2 °CMA: 5 °CAM: 12 °CMJ: 17 °CJJ: 20 °CJA: 19 °CAS: 14 °CSO: 8 °CON: 2 °CND: -4 °CD20 °C

Heating degree-days here run 74% 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: 88/100 — 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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with thermal cycling the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
33/100environmental-severity index
27.1°Cseasonal temperature swing
83 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #1303 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

Location

Coordinates 44.6889, -85.2019 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Kalkaska CT #1?

Kalkaska CT #1 is a 60 MW source-record gas power plant in Michigan, United States of America, commissioned in 2003.

How much electricity does Kalkaska CT #1 generate?

Kalkaska CT #1 generates about 25 GWh of electricity per year.

How many homes can Kalkaska CT #1 power?

Its output is enough to supply roughly 7,257 homes.

Who operates Kalkaska CT #1?

Kalkaska CT #1 is operated by Michigan Public Power Agency.

How much CO₂ does Kalkaska CT #1 emit?

Kalkaska CT #1 has measured emissions of about 32,327 tonnes of CO₂ per year (US EPA GHGRP).

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