Siersza is a 546 MW coal power station in Lesser Poland Voivodeship, Poland. It is operated by TAURON Wytwarzanie S.A.. Based on reported annual generation of 1,476 GWh, it can supply roughly 422k homes. It ranks #42 of 246 Poland power plants by installed capacity. Commissioned in 1969, it is around 57 years old — an older, legacy facility. 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 WRI1019044.
Data status
Known data
Calculated from 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 306 MW for Siersza 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
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
At 546 MW, Siersza is well above the median coal plant in Poland (166 MW). Technically it is described as subcritical. 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.
Key facts
- Load factor
- 31%, from 1,476 GWh of reported generation; the median for 24 coal plants in Poland that report generation is 45%
- Generation trend
- 1,602 GWh in 2015 and 1,476 GWh in 2017 (−8%)
- Highest and lowest year
- 2015: 1,602 GWh; 2017: 1,476 GWh
- Share of Poland coal capacity
- 1.1% of 47,959 MW across 93 plants in this dataset
- Age among peers
- 24 of 58 dated coal plants in Poland are older
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 TAURON Wytwarzanie S.A.. All plants by this company →
Local climate & thermal context
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 50.2°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 45% 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: 77/100 — 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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), 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 #26 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.
Nearby power plants
- Jaworzno II · Coal · 189 MW · Silesian Voivodeship
- Jaworzno III · Coal · 1,345 MW · Silesian Voivodeship
- Jaworzno power station · Gas · 600 MW · Silesian Voivodeship
- ZW Nowa power station · Coal · 180 MW · Silesian Voivodeship
- Dąbrowa Górnicza Coking Plant power station · Gas · 113 MW · Silesian Voivodeship
- EC Nowa · Coal · 150 MW · Silesian Voivodeship
Location
Coordinates 50.2083, 19.4617 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Siersza?
Siersza is a 546 MW coal power plant in Lesser Poland Voivodeship, Poland, commissioned in 1969.
How much electricity does Siersza generate?
Siersza generates about 1,476 GWh of electricity per year.
Who operates Siersza?
Siersza is operated by TAURON Wytwarzanie S.A..