EC Siekierki is a 591 MW coal power station in Masovian Voivodeship, Poland. It is operated by PGNiG TERMIKA. Based on reported annual generation of 1,947 GWh, it can supply roughly 556k homes. It ranks #39 of 246 Poland power plants by installed capacity. Its annual emissions of 2,948,459 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 687k cars driven for a year. In context, coal supplies about 50.4% of Poland's electricity; the national grid averages 589 gCO₂/kWh (31.5% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1019046.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
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 tracker 2026 operating-unit sum (location L100000103235); fuel: WRI source-record fuel
At 591 MW, EC Siekierki is well above the median coal plant in Poland (166 MW). Its current lifecycle status is “announced” — so it is not yet, or no longer, generating at full output. 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.
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).
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Operated by PGNiG TERMIKA.
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 52.2°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 48% 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: 79/100 — 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.
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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.
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.
The #25 largest coal power plant of 93 in Poland by capacity.
Poland has 93 coal power plants in this dataset, together about 47,959 MW of capacity.
Coordinates 52.1901, 21.0873 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
EC Siekierki is a 591 MW source-record coal power plant in Masovian Voivodeship, Poland, planned/announced for 1961.
EC Siekierki generates about 1,947 GWh of electricity per year.
Its output is enough to supply roughly 556,228 homes.
EC Siekierki is operated by PGNiG TERMIKA.
EC Siekierki has measured emissions of about 2,948,459 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).
