Home / Companies / TransAlta

TransAlta — power plant portfolio

TransAlta operates 12 power plants across 2 countries, with a combined installed capacity of 3,489 MW. Its plants with asset-level emissions data total 726,900 t CO₂/yr.

12power plants
3,489MW total capacity
2countries
726,900t CO₂/yr (source-labelled)

Fleet by fuel

Gas: 6 plants6GasWind: 4 plants4WindCoal: 1 plants1Coal

Fleet interpretation

TransAlta is represented here as an asset portfolio, not just a company label. The visible fleet spans 2 countries; the largest concentration is Canada (9), Australia (3).

The fuel mix by asset count is gas (6), wind (4), coal (1). The largest listed asset is Sundance in Canada (2,141 MW), and the mean listed unit size is about 291 MW across units with capacity data.

CO₂ coverage is source-labelled: 3 plants have a reported or modelled CO₂ value in the dataset, including 0 measured records. Missing values remain blank rather than inferred as company totals.

Method: plant-level records are grouped by owner/operator label, then aggregated by country, fuel, capacity and CO₂ provenance.

All 12 plants

PlantFuelCountryMWt CO₂/yr
SundanceCoalCanada2,141
Poplar CreekGasCanada360
Southern Cross power stationGasAustralia244352,040
Nickel West gas-fired power stationGasAustralia150216,400
South Hedland power stationGasAustralia131158,460
Spy HillGasCanada86
Suncor Utility PlantGasCanada70
ArdenvilleWindCanada69
Blue TrailWindCanada66
Summerview 2WindCanada66
Le Nordais (Phase 1 - Cap Chat)WindCanada56
Dupont MaitlandGasCanada50

Ownership & capacity: WRI Global Power Plant Database (CC BY 4.0). CO₂ is measured for EPA/EU ETS records and modelled for Climate TRACE records.

Frequently asked questions

How many power plants does TransAlta operate?

TransAlta operates 12 power plants across 2 countries, with about 3,489 MW of total capacity.

What is TransAlta's largest power plant?

Sundance in Canada is its largest at about 2,141 MW.

What types of power plants does TransAlta run?

Its fleet is mostly gas (6), wind (4), coal (1).

How much CO₂ do TransAlta's plants emit?

Its reporting plants emit about 726,900 tonnes of CO₂ per year in this dataset.

By Dmytro Aheiev, Inzonex Research · ORCID 0009-0001-5512-0291 · data sources and methodology