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Lake Superior

Gas power plant in Michigan, Canada. Approximate location 46.5158, -84.3689.

GasMichiganCanadaCCGT · HRSG

Lake Superior is a 110 MW gas power station in Michigan, Canada. It is operated by Algoma Steel Group Inc [100%]. Based on its capacity (estimated), it can supply roughly 124k homes (estimated). It ranks #260 of 1,211 Canada power plants by installed capacity. Commissioned in 1993, it is around 33 years old — long-established. In context, gas supplies about 17.8% of Canada's electricity; the national grid averages 191 gCO₂/kWh (77.0% low-carbon) (2025).

110Source-backed capacity
1HRSG unit(s)
123,891homes powered (est.)
1993commissioned (~33 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CAN0002061.

Data status

Known data

FacilityLake Superior WRI
CountryCanada · Michigan WRI
Coordinates46.5158, -84.3689 WRI
FuelGas WRI
MW installed capacity110 MW WRI source record; scope not independently normalised
OwnerAlgoma Steel Group Inc [100%] WRI
Commissioned1993 WRI
TechnologyCCGT · HRSG WRI

Calculated from dataset

CO₂ emissions173,448 t CO₂/yr calculated
Capacity rank in country#260 of 1211 calculated
Fuel-specific rank in country#76 of 112 calculated
Capacity vs country/fuel peers0.65× · 170 MW median · 112 peers calculated
Homes-powered equivalent123,891 calculated
Climate4.7°C · HDD 4,824 derived from coordinates
Environmental severityC2 · 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 L100000407664); fuel: WRI source-record fuel

In context: how this plant compares

At 110 MW, Lake Superior is below the median gas plant in Canada (170 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). 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.

Capacity vs largest gas plants in Canada

Alberta Sundance power station: 2,121 MW2kAlberta Su…Lennox: 2,100 MW2kLennoxGreenlight Electricity Centre: 1,864 MW2kGreenlight…Beacon AI Centers Indus Project: 1,504 MW2kBeacon AI …Genesee Data Centre Project power station: 1,500 MW2kGenesee Da…Wonder Valley power station: 1,200 MW1kWonder Val…Greenfield Energy Centre: 1,038 MW1kGreenfield…Burrard: 950 MW950Burrard

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Algoma Steel Group Inc [100%].

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 46.5°N — which shapes how much energy it can produce and how its output varies through the year.

4.7°Cannual mean temp
4,824heating degree-days (base 18°C)
10cooling degree-days (base 18°C)
191 melevation

Monthly mean temperature

J: -10 °CJF: -9 °CFM: -4 °CMA: 4 °CAM: 10 °CMJ: 15 °CJJ: 18 °CJA: 18 °CAS: 13 °CSO: 7 °CON: 1 °CND: -6 °CD18 °C

Heating degree-days here run 96% 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: 93/100 — 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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with thermal cycling the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
33/100environmental-severity index
28.7°Cseasonal temperature swing
73 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 #76 largest gas power plant of 112 in Canada by capacity.

Canada has 112 gas power plants in this dataset, together about 37,176 MW of capacity.

Nearby power plants

Location

Coordinates 46.5158, -84.3689 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Lake Superior?

Lake Superior is a 110 MW source-record gas power plant in Michigan, Canada, commissioned in 1993.

How many homes can Lake Superior power?

Its output is enough to supply roughly 123,891 homes (estimated).

Who operates Lake Superior?

Lake Superior is operated by Algoma Steel Group Inc [100%].

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