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Porvoo Refinery power station

Gas power plant in Porvoo, Finland. Approximate location 60.30734, 25.49704.

GasPorvooFinlandCCGT · HRSGCO₂ measured

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).

152MW installed capacity
1HRSG unit(s)
171,195homes powered (est.)
239,472t CO₂ / yr (EU ETS verified (EUTL 2023))
2018commissioned (~8 yrs)

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

Data status

Known data

FacilityPorvoo Refinery power station GEM-GOGPT
CountryFinland · Porvoo GEM-GOGPT
Coordinates60.30734, 25.49704 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity152 MW GEM · 2026 · L100000400082; operating plant capacity
OwnerKilpilahden Voimalaitos Oy [100%] GEM-GOGPT
Commissioned2018 GEM-GOGPT
TechnologyCCGT · HRSG GEM-GOGPT
CO₂ emissions239,472 t CO₂·a⁻¹ measured · EU ETS verified (EUTL 2023)

Calculated from dataset

Capacity rank in country#25 / 203 calculated
Fuel-specific rank in country#6 / 20 calculated
Capacity vs country/fuel peers1.26× · 120.6 MW · n=20 calculated
Homes-powered equivalent171,195 calculated
Environmental severityC3 · 32/100 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.

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

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 · 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:

56kpassenger cars driven for a year
31khomes' yearly energy use
4.0 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 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 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.

~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
23.3°Cseasonal temperature swing
17 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 #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

Location

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

Frequently asked questions

What type of power plant is Porvoo Refinery power station?

Porvoo Refinery power station is a 152 MW gas power plant in Porvoo, Finland, commissioned in 2018.

How many homes can Porvoo Refinery power station power?

Its output is enough to supply roughly 171,195 homes (estimated).

Who operates Porvoo Refinery power station?

Porvoo Refinery power station is operated by Kilpilahden Voimalaitos Oy [100%].

How much CO₂ does Porvoo Refinery power station emit?

Porvoo Refinery power station has measured emissions of about 239,472 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).

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