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Old Man 2

Wind power plant in Alberta, Canada. Approximate location 49.5708, -113.8534.

WindAlbertaCanada

Old Man 2 is a 46 MW wind power plant in Alberta, Canada. It is operated by Mainstream. Based on its capacity (estimated), it can supply roughly 39k homes (estimated). It ranks #439 of 1,211 Canada power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, wind supplies about 7.9% of Canada's electricity; the national grid averages 191 gCO₂/kWh (77.0% low-carbon) (2025).

46Source-backed capacity
39,144homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CAN0008192.

Data status

Known data

FacilityOld Man 2 WRI
CountryCanada · Alberta WRI
Coordinates49.5708, -113.8534 WRI
FuelWind WRI
MW installed capacity46 MW WRI source record; scope not independently normalised
OwnerMainstream WRI

Calculated from dataset

Capacity rank in country#439 of 1211 calculated
Fuel-specific rank in country#92 of 241 calculated
Capacity vs country/fuel peers1.92× · 24 MW median · 241 peers calculated
Homes-powered equivalent39,144 calculated
Climate4.8°C · HDD 4,800 derived from coordinates
Environmental severityC2 · 27/100 derived from coordinates

Not available

CommissionedNot available not in dataset
TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

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 56 MW for Oldman River wind farm, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: B_SCOPE_PARENT_COMPLEX - recommended action: build_parent_complex_model - confidence: not_comparable_without_scope. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

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 L100000906721); fuel: WRI source-record fuel

In context: how this plant compares

At 46 MW, Old Man 2 is well above the median wind plant in Canada (24 MW). Wind turbines convert moving air into electricity; output is variable and site-dependent, and modern turbines deliver some of the lowest-cost new generation on many grids.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Capacity vs largest wind plants in Canada

Lac-Alfred: 300 MW300Lac-AlfredBlackspring Ridge: 299 MW299Blacksprin…K2 Wind: 270 MW270K2 WindSouth Kent: 270 MW270South KentWest Lincoln Niagara Region Wind Farm: 230 MW230West Linco…Rivière du Moulin 2: 200 MW200Rivière du…Wolfe Island: 198 MW198Wolfe Isla…Prince: 189 MW189Prince

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

Owner

Operated by Mainstream.

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 49.6°N — which shapes how much energy it can produce and how its output varies through the year.

4.8°Cannual mean temp
4,800heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
1,186 melevation

Monthly mean temperature

J: -7 °CJF: -5 °CFM: -1 °CMA: 4 °CAM: 10 °CMJ: 14 °CJJ: 16 °CJA: 16 °CAS: 11 °CSO: 6 °CON: -1 °CND: -6 °CD16 °C

Heating degree-days here run 95% 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.

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 humidity / wetness the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
27/100environmental-severity index
23.6°Cseasonal temperature swing
839 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 #92 largest wind power plant of 241 in Canada by capacity.

Canada has 241 wind power plants in this dataset, together about 12,127 MW of capacity.

Nearby power plants

Location

Coordinates 49.5708, -113.8534 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Old Man 2?

Old Man 2 is a 46 MW source-record wind power plant in Alberta, Canada.

How many homes can Old Man 2 power?

Its output is enough to supply roughly 39,144 homes (estimated).

Who operates Old Man 2?

Old Man 2 is operated by Mainstream.

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