Naantali kt is a 40 MW other power plant in Varsinais-Suomi, Finland. It is operated by Fingrid Oyj. Based on reported annual generation of 606 GWh, it can supply roughly 173k homes. It ranks #80 of 203 Finland power plants by installed capacity. In context, the national grid averages 57 gCO₂/kWh (96.3% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1002465.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.
capacity: WRI GPPD; fuel: WRI GPPD
In context: how this plant compares
This facility converts its energy source into electricity for the grid; its capacity, fuel type and location determine its role in the national power mix.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Generation trend
- 832 GWh in 2015 and 606 GWh in 2017 (−27%)
- Highest and lowest year
- 2016: 1,100 GWh; 2017: 606 GWh
- Share of Finland other capacity
- 14.2% of 282 MW across 4 plants in this dataset
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Reported generation trend
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Fingrid Oyj.
Local climate & thermal context
This other plant generates electricity for the grid. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 60.5°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 86% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.
Climate heat-demand index: 91/100 — this site sits in the top third of the power plants we cover by heating degree-days.
Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.
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 #4 largest other power plant of 4 in Finland by capacity.
Finland has 4 other power plants in this dataset, together about 282 MW of capacity.
Nearby power plants
- Naantali G1 2 ja 3 · Gas · 290 MW · Varsinais-Suomi
- Naantali Reserve power station · Oil · 40 MW · South-Western Finland
- Naantali CHP power station · Coal · 511 MW · Finland Proper
- Linnankatu power station · Coal · 35 MW · Finland Proper
- Askala · Hydro · 1.3 MW · Varsinais-Suomi
- Uusikaupunki · Oil · 14.2 MW · Varsinais-Suomi
Location
Coordinates 60.459, 22.0545 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Naantali kt?
Naantali kt is a 40 MW other power plant in Varsinais-Suomi, Finland.
How much electricity does Naantali kt generate?
Naantali kt generates about 606 GWh of electricity per year.
Who operates Naantali kt?
Naantali kt is operated by Fingrid Oyj.