Thessaloniki Power Plant is a 420 MW gas power station in Central Macedonia, Greece. It is operated by Elpedison Energy. Based on reported annual generation of 1,447 GWh, it can supply roughly 413k homes. It ranks #20 of 99 Greece power plants by installed capacity. Commissioned in 2005, it is around 21 years old — relatively modern. In context, gas supplies about 38.4% of Greece's electricity; the national grid averages 315 gCO₂/kWh (49.7% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1061106.
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 · L100000400298; fuel: WRI GPPD
In context: how this plant compares
At 420 MW, Thessaloniki Power Plant is around the median gas plant in Greece (444 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG); GE Power: 9FA. 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
- 39%, from 1,447 GWh of reported generation, in line with the 39% median for 9 gas plants in Greece
- Generation trend
- 622 GWh in 2015 and 1,447 GWh in 2017 (+132%)
- Highest and lowest year
- 2017: 1,447 GWh; 2015: 622 GWh
- Share of Greece gas capacity
- 3.8% of 10,957 MW across 19 plants in this dataset
- Age among peers
- 5 of 15 dated gas plants in Greece 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 Elpedison Energy.
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 humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 40.7°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 24% 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: 41/100 — 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 corrosive environment (estimated ISO 9223 class C4 — High), 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 #13 largest gas power plant of 19 in Greece by capacity.
Greece has 19 gas power plants in this dataset, together about 10,957 MW of capacity.
Nearby power plants
- Axiochori Solar Power Plant · Solar · 6 MW · Central Macedonia
- Mesokomo · Solar · 5 MW · Central Macedonia
- Moutsara 1 Solar Power Plant · Solar · 7 MW · Central Macedonia
- Moutsara 2 Solar Power Plant · Solar · 7 MW · Central Macedonia
- Assomata · Hydro · 108 MW · Central Macedonia
- Sfikia · Hydro · 315 MW · Central Macedonia
Location
Coordinates 40.6872, 22.885 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Thessaloniki Power Plant?
Thessaloniki Power Plant is a 420 MW gas power plant in Central Macedonia, Greece, commissioned in 2005.
How much electricity does Thessaloniki Power Plant generate?
Thessaloniki Power Plant generates about 1,447 GWh of electricity per year.
Who operates Thessaloniki Power Plant?
Thessaloniki Power Plant is operated by Elpedison Energy.