Gas power plant in British Columbia, Canada. Approximate location 56.1447, -120.6686.
GasBritish ColumbiaCanadaOCGT
McMahon Cogeneration is a 120 MW gas power station in British Columbia, Canada. It is operated by Spectra Energy (50%) / ATCO Pwer (50%). Based on its capacity (estimated), it can supply roughly 135k homes (estimated). It ranks #250 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).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id CAN0002066.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
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 L100000405236); fuel: WRI source-record fuel
At 120 MW, McMahon Cogeneration is below the median gas plant in Canada (170 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.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Spectra Energy (50%) / ATCO Pwer (50%).
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a subarctic (boreal) climate (Köppen Dfc) — Northern Hemisphere, latitude 56.1°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 137% 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: 98/100 — 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.
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.
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.
The #74 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.
Coordinates 56.1447, -120.6686 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
McMahon Cogeneration is a 120 MW source-record gas power plant in British Columbia, Canada, commissioned in 1993.
Its output is enough to supply roughly 135,154 homes (estimated).
McMahon Cogeneration is operated by Spectra Energy (50%) / ATCO Pwer (50%).
