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Inkoo power station

Coal power plant in Uusimaa, Finland. Approximate location 60.01749, 23.91262.

CoalUusimaaFinlandCO₂ measured

Inkoo power station is a 1,000 MW coal power station in Uusimaa, Finland. It is operated by Fortum Oyj [100%]. Based on its capacity (estimated), it can supply roughly 1.3 million homes (estimated). It ranks #3 of 203 Finland power plants by installed capacity. Commissioned in 1974, it is around 52 years old — an older, legacy facility. Its annual emissions of 63,026 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 15k cars driven for a year. In context, coal supplies about 0.2% of Finland's electricity; the national grid averages 57 gCO₂/kWh (96.3% low-carbon) (2025).

1,000MW installed capacity
1,251,428homes powered (est.)
63,026t CO₂ / yr (EU ETS verified (EUTL 2023))
1974commissioned (~52 yrs)

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

Data status

Known data

FacilityInkoo power station GEM-coal
CountryFinland · Uusimaa GEM-coal
Coordinates60.01749, 23.91262 GEM-coal
FuelCoal GEM-coal
MW installed capacity1,000 MW GEM GCPT; source record
OwnerFortum Oyj [100%] GEM-coal
Commissioned1974 GEM-coal
CO₂ emissions63,026 t CO₂·a⁻¹ measured · EU ETS verified (EUTL 2023)

Calculated from dataset

Capacity rank in country#3 / 203 calculated
Fuel-specific rank in country#1 / 13 calculated
Capacity vs country/fuel peers4.35× · 230 MW · n=13 calculated
Homes-powered equivalent1,251,428 calculated
Environmental severityC3 · 32/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: GEM GCPT; fuel: GEM GCPT

In context: how this plant compares

At 1,000 MW, Inkoo power station is well above the median coal plant in Finland (230 MW). Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.

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

63,026 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

15kpassenger cars driven for a year
8.2khomes' yearly energy use
1.1 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per EU ETS verified (EUTL 2023) (measured for US EPA/EU ETS, modelled for Climate TRACE).

Capacity vs largest coal plants in Finland

Inkoo power station: 1,000 MW1kInkoo powe…Vuosaari power station: 648 MW648Vuosaari p…Meri-Pori: 614 MW614Meri-PoriNaantali CHP power station: 511 MW511Naantali C…Suomenoja power station: 279 MW279Suomenoja …Kristiina power station: 242 MW242Kristiina …Vaskiluoto 2: 230 MW230Vaskiluoto…Hanasaari B: 212 MW212Hanasaari B

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

Owner

Operated by Fortum Oyj [100%].

Climate zone & how it works

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 60.0°N — which shapes how much energy it can produce and how its output varies through the year.

~6°Ctypical annual mean
~19°Ctypical warm-season mean
Warm-summer humid continental: long cold winters and short, cool summers

Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

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

C3ISO 9223 corrosivity (indicative)
32/100environmental-severity index
22.4°Cseasonal temperature swing
18 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 #1 largest coal power plant of 13 in Finland by capacity.

Finland has 13 coal power plants in this dataset, together about 4,217 MW of capacity.

Nearby power plants

Location

Coordinates 60.01749, 23.91262 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Inkoo power station?

Inkoo power station is a 1,000 MW coal power plant in Uusimaa, Finland, commissioned in 1974.

How many homes can Inkoo power station power?

Its output is enough to supply roughly 1,251,428 homes (estimated).

Who operates Inkoo power station?

Inkoo power station is operated by Fortum Oyj [100%].

How much CO₂ does Inkoo power station emit?

Inkoo power station has measured emissions of about 63,026 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).

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