Gönyűi Erőmű is a 426.6 MW gas power station in Gyor-Moson-Sopron, Hungary. It is operated by Uniper SE [100%]. Based on reported annual generation of 2,096 GWh, it can supply roughly 599k homes. It ranks #8 of 37 Hungary power plants by installed capacity. Commissioned in 2011, it is around 15 years old — relatively modern. Its annual emissions of 836,070 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 195k cars driven for a year. In context, gas supplies about 20.3% of Hungary's electricity; the national grid averages 163 gCO₂/kWh (75.3% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1020250.
Data status
Known data
Calculated from dataset
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000400311; fuel: WRI GPPD
In context: how this plant compares
At 426.6 MW, Gönyűi Erőmű is well above the median gas plant in Hungary (110 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
836,070 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
- Load factor
- 56%, from 2,096 GWh of reported generation; the median for 5 gas plants in Hungary that report generation is 41%
- Generation trend
- 968 GWh in 2015 and 2,096 GWh in 2017 (+117%)
- Highest and lowest year
- 2017: 2,096 GWh; 2015: 968 GWh
- Share of Hungary gas capacity
- 9.1% of 4,706 MW across 20 plants in this dataset
- Age among peers
- 13 of 17 dated gas plants in Hungary 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 Uniper SE [100%].
Local climate & thermal context
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 47.7°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 21% 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: 62/100 — this site sits in the mid third of the power plants we cover by heating degree-days.
A gas turbine here also runs ~0% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).
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 #4 largest gas power plant of 20 in Hungary by capacity.
Hungary has 20 gas power plants in this dataset, together about 4,706 MW of capacity.
Nearby power plants
- Gabcikovo Hydroelectric Power Plant Slovakia · Hydro · 720 MW · Trnavsky
- Oroszlány power station · Coal · 250 MW · Komarom-Esztergom
- Banhida-II power station · Coal · 100 MW · Komárom-Esztergom
- Tatabanya power station · Gas · 21 MW · Tatabanya
- Cunovo Hydroelectric Power Plant Slovakia · Hydro · 24 MW · Gyor-Moson-Sopron
- Slovnaft Refinery power station · Gas · 163 MW · Bratislava
Location
Coordinates 47.7384, 17.8033 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Gönyűi Erőmű?
Gönyűi Erőmű is a 426.6 MW gas power plant in Gyor-Moson-Sopron, Hungary, commissioned in 2011.
How much electricity does Gönyűi Erőmű generate?
Gönyűi Erőmű generates about 2,096 GWh of electricity per year.
Who operates Gönyűi Erőmű?
Gönyűi Erőmű is operated by Uniper SE [100%].
How much CO₂ does Gönyűi Erőmű emit?
Gönyűi Erőmű has measured emissions of about 836,070 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).