TPP Iernut is a 751 MW gas power station in Mures, Romania. It is operated by Romgaz SA [100%]. Based on reported annual generation of 1,714 GWh, it can supply roughly 490k homes. It ranks #10 of 97 Romania power plants by installed capacity. Commissioned in 1964, it is around 62 years old — an older, legacy facility. In context, gas supplies about 18.7% of Romania's electricity; the national grid averages 251 gCO₂/kWh (67.5% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1019098.
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 300 MW for Iernut 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 751 MW, TPP Iernut is well above the median gas plant in Romania (200 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG); GE Power: 6F.03. 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.
Key facts
- Load factor
- 26%, from 1,714 GWh of reported generation
- Generation trend
- 1,591 GWh in 2015 and 1,714 GWh in 2017 (+8%)
- Highest and lowest year
- 2017: 1,714 GWh; 2016: 1,509 GWh
- Share of Romania gas capacity
- 11.8% of 6,358 MW across 26 plants in this dataset
- Age among peers
- 0 of 19 dated gas plants in Romania 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 Romgaz SA [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 warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 46.5°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 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.
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 #2 largest gas power plant of 26 in Romania by capacity.
Romania has 26 gas power plants in this dataset, together about 6,358 MW of capacity.
Nearby power plants
- Câmpia Turzii power station · Gas · 150 MW · Cluj County
- Hefaistos power station · Gas · 500 MW · Mures
- Cluj S · Solar · 7 MW · Cluj
- Cluj N · Solar · 5.5 MW · Cluj
- Lechința · Solar · 15.8 MW · Bistrita-Nasaud
- Sibiului · Solar · 23 MW · Alba
Location
Coordinates 46.4677, 24.1833 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is TPP Iernut?
TPP Iernut is a 751 MW gas power plant in Mures, Romania, commissioned in 1964.
How much electricity does TPP Iernut generate?
TPP Iernut generates about 1,714 GWh of electricity per year.
Who operates TPP Iernut?
TPP Iernut is operated by Romgaz SA [100%].