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Republika power station

Coal power plant in Pernik, Bulgaria. Approximate location 42.6064, 23.0784.

CoalPernikBulgariasubcriticalCO₂ measured

Republika power station is a 105 MW coal power station in Pernik, Bulgaria. It is operated by Toplofikacia Pernik Ead. Based on its capacity (estimated), it can supply roughly 131k homes (estimated). It ranks #30 of 55 Bulgaria power plants by installed capacity. Commissioned in 1951, it is around 75 years old — an older, legacy facility. Its annual emissions of 257,824 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 60k cars driven for a year. In context, coal supplies about 22.5% of Bulgaria's electricity; the national grid averages 276 gCO₂/kWh (71.9% low-carbon) (2025).

105Source-backed capacity
131,400homes powered (est.)
257,824t CO₂ / yr (EU ETS verified (EUTL 2023))
1951commissioned (~75 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1008045.

Data status

Known data

FacilityRepublika power station WRI
CountryBulgaria · Pernik WRI
Coordinates42.6064, 23.0784 WRI
FuelCoal WRI
MW installed capacity105 MW WRI source record; scope not independently normalised
OwnerToplofikacia Pernik Ead WRI
Commissioned1951 WRI
Technologysubcritical WRI
CO₂ emissions257,824 t CO₂/yr measured · EU ETS verified (EUTL 2023)

Calculated from dataset

Capacity rank in country#30 of 55 calculated
Fuel-specific rank in country#13 of 14 calculated
Capacity vs country/fuel peers0.58× · 180 MW median · 14 peers calculated
Homes-powered equivalent131,400 calculated
Climate8.6°C · HDD 3,425 derived from coordinates
Environmental severityC2 · 28/100 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.

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 tracker 2026 (location L100000100138); fuel: WRI source-record fuel

In context: how this plant compares

At 105 MW, Republika power station is below the median coal plant in Bulgaria (180 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.

257,824 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

60kpassenger cars driven for a year
34khomes' yearly energy use
4.3 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 coal plants in Bulgaria

Maritsa Itzok-2 power station: 1,602 MW2kMaritsa It…Maritsa Itzok-3 power station: 908 MW908Maritsa It…AES Galabovo: 690 MW690AES Galabo…Bobov Dol power station: 630 MW630Bobov Dol …Lom Power Station: 400 MW400Lom Power …Brikel power station: 200 MW200Brikel pow…RUSE: 180 MW180RUSEDeven power station: 174 MW174Deven powe…

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

Owner

Operated by Toplofikacia Pernik Ead.

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 42.6°N — which shapes how much energy it can produce and how its output varies through the year.

8.6°Cannual mean temp
3,425heating degree-days (base 18°C)
21cooling degree-days (base 18°C)
850 melevation

Monthly mean temperature

J: -2 °CJF: 0 °CFM: 4 °CMA: 9 °CAM: 13 °CMJ: 16 °CJJ: 18 °CJA: 18 °CAS: 15 °CSO: 9 °CON: 4 °CND: 0 °CD18 °C

Heating degree-days here run 39% 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: 74/100 — 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

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.

C2ISO 9223 corrosivity (indicative)
28/100environmental-severity index
20.0°Cseasonal temperature swing
222 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 #13 largest coal power plant of 14 in Bulgaria by capacity.

Bulgaria has 14 coal power plants in this dataset, together about 5,419 MW of capacity.

Nearby power plants

Location

Coordinates 42.6064, 23.0784 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Republika power station?

Republika power station is a 105 MW source-record coal power plant in Pernik, Bulgaria, commissioned in 1951.

How many homes can Republika power station power?

Its output is enough to supply roughly 131,400 homes (estimated).

Who operates Republika power station?

Republika power station is operated by Toplofikacia Pernik Ead.

How much CO₂ does Republika power station emit?

Republika power station has measured emissions of about 257,824 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).

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