Porvoo Refinery power station — Finland

Porvoo Refinery power station is a 152 MW gas power station in Porvoo, Finland. It is operated by Kilpilahden Voimalaitos Oy [100%]. Based on its capacity (estimated), it can supply roughly 171k homes (estimated). It ranks #25 of 203 Finland power plants by installed capacity. Commissioned in 2018, it is around 8 years old — recently built. Its annual emissions of 239,472 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 56k cars driven for a year. In context, gas supplies about 1.2% of Finland's electricity; the national grid averages 57 gCO₂/kWh (96.3% low-carbon) (2025).

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

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 152 MW for Porvoo Refinery power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000400082; fuel: GEM GOGPT

In context: how this plant compares

At 152 MW, Porvoo Refinery power station is well above 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.

239,472 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

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

Key facts

Share of Finland gas capacity

6.8% of 2,246 MW across 20 plants in this dataset

Age among peers

6 of 7 dated gas plants in Finland are older

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

Capacity vs largest gas plants in Finland

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

Owner

Operated by Kilpilahden Voimalaitos Oy [100%].

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 warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 60.3°N — which shapes how much energy it can produce and how its output varies through the year.

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

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.

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 #6 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

• Porvoo · Oil · 76 MW · Uusimaa
• Porvoo kt 2 · Gas · 120.6 MW · Uusimaa
• Porvoo Tolkkinen · Oil · 40 MW · Uusimaa
• Tolkkinen Biolaitos · Biomass · 11.3 MW · Uusimaa
• Tolkkinen 1 · Biomass · 7.8 MW · Uusimaa
• Vuosaari power station · Coal · 648 MW ·

Location

Coordinates 60.30734, 25.49704 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions