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Raahen Voima power station

Gas power plant in Northern Ostrobothnia, Finland. Approximate location 64.6522, 24.4252.

GasNorthern OstrobothniaFinlandCCGT · HRSG

Raahen Voima power station is a 125 MW gas power station in Northern Ostrobothnia, Finland. It is operated by Raahen Voima Oy. Based on its capacity (estimated), it can supply roughly 141k homes (estimated). It ranks #32 of 203 Finland power plants by installed capacity. Commissioned in 2016, it is around 10 years old — relatively modern. In context, gas supplies about 1.2% of Finland's electricity; the national grid averages 57 gCO₂/kWh (96.3% low-carbon) (2025).

125MW installed capacity
1HRSG unit(s)
140,785homes powered (est.)
2016commissioned (~10 yrs)

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

Data status

Known data

FacilityRaahen Voima power station GEM-GOGPT
CountryFinland · Northern Ostrobothnia GEM-GOGPT
Coordinates64.6522, 24.4252 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity125 MW GEM · 2026 · L100001000062; operating plant capacity
OwnerRaahen Voima Oy GEM-GOGPT
Commissioned2016 GEM-GOGPT
TechnologyCCGT · HRSG GEM-GOGPT

Calculated from dataset

CO₂ emissions197,100 t CO₂·a⁻¹ calculated
Capacity rank in country#32 / 203 calculated
Fuel-specific rank in country#9 / 20 calculated
Capacity vs country/fuel peers1.04× · 120.6 MW · n=20 calculated
Homes-powered equivalent140,785 calculated
Environmental severityC3 · 31/100 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

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 · 2026 · L100001000062; fuel: GEM GOGPT

In context: how this plant compares

At 125 MW, Raahen Voima power station is around the median gas plant in Finland (120.6 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). 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.

Capacity vs largest gas plants in Finland

Vuosaari B: 485 MW485Vuosaari BNaantali G1 2 ja 3: 290 MW290Naantali …Naistenlahti 2: 191 MW191Naistenlah…Martinlaakso: 172 MW172Martinlaak…Vuosaari A: 163 MW163Vuosaari APorvoo Refinery power station: 152 MW152Porvoo Ref…Lielahti: 142 MW142LielahtiKirkniemi: 128 MW128Kirkniemi

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

Owner

Operated by Raahen Voima Oy.

Climate zone & how it works

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a subarctic (boreal) climate (Köppen Dfc) — Northern Hemisphere, latitude 64.7°N — which shapes how much energy it can produce and how its output varies through the year.

~0°Ctypical annual mean
~14°Ctypical warm-season mean
Subarctic (boreal): 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 thermal cycling the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
31/100environmental-severity index
24.7°Cseasonal temperature swing
16 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 #9 largest gas power plant of 20 in Finland by capacity.

Finland has 20 gas power plants in this dataset, together about 2,246 MW of capacity.

Nearby power plants

Location

Coordinates 64.6522, 24.4252 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Raahen Voima power station?

Raahen Voima power station is a 125 MW gas power plant in Northern Ostrobothnia, Finland, commissioned in 2016.

How many homes can Raahen Voima power station power?

Its output is enough to supply roughly 140,785 homes (estimated).

Who operates Raahen Voima power station?

Raahen Voima power station is operated by Raahen Voima Oy.

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