Rijeka Thermal Power Plant Croatia

Rijeka Thermal Power Plant Croatia is a 320 MW oil power station in Primorsko-Goranska, Croatia. It is operated by HEP-Proizvodnja doo. Based on its capacity (estimated), it can supply roughly 240k homes (estimated). It ranks #8 of 28 Croatia power plants by installed capacity. Commissioned in 1978, it is around 48 years old — long-established. Its annual emissions of 23,365 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 5.4k cars driven for a year. In context, oil supplies about 0.0% of Croatia's electricity; the national grid averages 158 gCO₂/kWh (76.3% low-carbon) (2025).

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEODB0044822.

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100001025952; fuel: WRI GPPD

In context: how this plant compares

Technically it is described as Steam. Oil-fired plants burn heavy fuel oil or diesel, usually as peaking or backup capacity on islands and grids without gas pipelines; high fuel cost keeps their utilisation low.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

23,365 t CO₂/yr — in everyday terms

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).

Key facts

Share of Croatia oil capacity

43.2% of 740 MW across 2 plants in this dataset

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Capacity vs largest oil plants in Croatia

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

Owner

Operated by HEP-Proizvodnja doo.

Local climate & thermal context

This oil plant burns oil or diesel to drive turbines or reciprocating engines. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 45.3°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 5% below 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: 48/100 — this site sits in the mid 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 #2 largest oil power plant of 2 in Croatia by capacity.

Croatia has 2 oil power plants in this dataset, together about 740 MW of capacity.

Nearby power plants

• Vinodol Hydroelectric Power System Croatia Croatia · Hydro · 90 MW · Primorsko-Goranska
• Plomin Thermal Power Plant Croatia · Coal · 330 MW · Istarska
• Senj Hydroelectric Power System Croatia Croatia · Hydro · 216 MW · Licko-Senjska
• Gojak Hydroelectric Power Plant Croatia Croatia · Hydro · 55.5 MW · Karlovacka
• Lesce Hydroelectric Power Plant Croatia Croatia · Hydro · 42.3 MW · Karlovacka
• Servola power station · Gas · 230 MW · Friuli Venezia Giulia

Location

Coordinates 45.2862, 14.5207 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions