IESO Nova Scotia Marshdale Power Station — Canada

IESO Nova Scotia Marshdale Power Station is a 300 MW gas power station in Nova Scotia, Canada. It ranks #122 of 1,210 Canada power plants by installed capacity. 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 GOGPT_iesonovascotiamarshdal_canada.

Data provenance

Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.

capacity: GEM GOGPT; fuel: GEM GOGPT

In context: how this plant compares

At 300 MW, IESO Nova Scotia Marshdale Power Station is well above the median gas plant in Canada (170 MW). Technically it is described as OCGT. Its current lifecycle status is “Announced” — so it is not yet, or no longer, generating at full output. 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.

How it compares & nearby plants

The #39 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

• Irish Mountain · Wind · 2 MW · Nova Scotia
• Limerock · Wind · 5 MW · Nova Scotia
• New Glasgow (Watts Wind II) · Wind · 6.4 MW · Nova Scotia
• IESO Salt Springs Power Station · Gas · 300 MW · Nova Scotia
• Trenton · Coal · 310 MW · Nova Scotia
• Northern Pulp Nova Scotia Pictou Mill · Biomass · 26 MW · Nova Scotia

Location

Coordinates 45.4471, -62.74148 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions