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Cap-aux-Meules — Canada

Oil power plant in Prince Edward Island, Canada. Approximate location 47.3745, -61.8858.

OilPrince Edward IslandCanadaEngine

Cap-aux-Meules is a 66 MW oil power plant in Prince Edward Island, Canada. It is operated by Hydro Quebec. Based on its capacity (estimated), it can supply roughly 50k homes (estimated). It ranks #365 of 1,210 Canada power plants by installed capacity. Commissioned in 1952, it is around 74 years old — an older, legacy facility. In context, oil supplies about 1.2% of Canada's electricity; the national grid averages 191 gCO₂/kWh (77.0% low-carbon) (2025).

66MW installed capacity
49,556homes powered (est.)
1952commissioned (~74 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CAN1060135.

Data status

Known data

FacilityCap-aux-Meules WRI
CountryCanada · Prince Edward Island WRI
Coordinates47.3745, -61.8858 WRI
FuelOil WRI
MW installed capacity66 MW GEM · 2026 · L100000408866; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerHydro Quebec WRI
Commissioned1952 WRI
TechnologyEngine WRI

Calculated from dataset

CO₂ emissions130,086 t CO₂·a⁻¹ calculated
Capacity rank in country#365 / 1210 calculated
Fuel-specific rank in country#7 / 9 calculated
Capacity vs country/fuel peers0.61× · 109 MW · n=9 calculated
Homes-powered equivalent49,556 calculated
Climate4.8°C · HDD 4,782 derived from coordinates
Environmental severityC3 · 35/100 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

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000408866; fuel: WRI GPPD

In context: how this plant compares

At 66 MW, Cap-aux-Meules is below the median oil plant in Canada (109 MW). Technically it is described as Engine. Oil-fired plants burn heavy fuel oil or diesel, usually as peaking or backup capacity on islands and grids without gas pipelines; high fuel cost keeps their utilisation low.

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

Key facts

Share of Canada oil capacity
2.7% of 2,463 MW across 9 plants in this dataset
Age among peers
0 of 8 dated oil plants in Canada are older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Capacity vs largest oil plants in Canada

Coleson Cove: 1,050 MW1kColeson Co…Holyrood: 490 MW490HolyroodMillbank: 400 MW400MillbankBurnside: 132 MW132BurnsideCharlottetown Thermal Generating Station: 109 MW109Charlottet…Sainte Rose power station: 100 MW100Sainte Ros…Cap-aux-Meules: 66 MW66Cap-aux-Me…Victoria Junction: 66 MW66Victoria J…

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

Local climate & thermal context

This oil plant burns oil or diesel to drive turbines or reciprocating engines. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 47.4°N — which shapes how much energy it can produce and how its output varies through the year.

4.8°Cannual mean temp
4,782heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
27 melevation

Monthly mean temperature

J: -6 °CJF: -7 °CFM: -4 °CMA: 1 °CAM: 6 °CMJ: 11 °CJJ: 16 °CJA: 17 °CAS: 13 °CSO: 8 °CON: 3 °CND: -2 °CD17 °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

This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
35/100environmental-severity index
24.3°Cseasonal temperature swing
17 kmdistance to coast

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 #7 largest oil power plant of 9 in Canada by capacity.

Canada has 9 oil power plants in this dataset, together about 2,463 MW of capacity.

Nearby power plants

Location

Coordinates 47.3745, -61.8858 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Cap-aux-Meules?

Cap-aux-Meules is a 66 MW oil power plant in Prince Edward Island, Canada, commissioned in 1952.

Who operates Cap-aux-Meules?

Cap-aux-Meules is operated by Hydro Quebec.

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