Megalopoli power station is a 846 MW coal power station in Peloponnese, Greece. It is operated by PPC. Based on reported annual generation of 2,904 GWh, it can supply roughly 830k homes. It ranks #6 of 99 Greece power plants by installed capacity. Commissioned in 1979, it is around 47 years old — long-established. In context, coal supplies about 4.7% 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 WRI1061093.
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 · L100000101998; fuel: WRI GPPD
In context: how this plant compares
At 846 MW, Megalopoli power station is around the median coal plant in Greece (800 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.
Key facts
- Load factor
- 39%, from 2,904 GWh of reported generation
- Generation trend
- 2,592 GWh in 2015 and 2,904 GWh in 2017 (+12%)
- Highest and lowest year
- 2017: 2,904 GWh; 2016: 2,348 GWh
- Share of Greece coal capacity
- 14.3% of 5,921 MW across 8 plants in this dataset
- Age among peers
- 2 of 6 dated coal 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 PPC.
Local climate & thermal context
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a hot-summer Mediterranean climate (Köppen Csa) — Northern Hemisphere, latitude 37.4°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 10% 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: 46/100 — 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 corrosive environment (estimated ISO 9223 class C4 — High), with marine corrosion 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 #3 largest coal power plant of 8 in Greece by capacity.
Greece has 8 coal power plants in this dataset, together about 5,921 MW of capacity.
Nearby power plants
- Megalopolis V · Gas · 811 MW · Peloponnese
- Tripolis Solar Power Plant · Solar · 2 MW · Peloponnese
- Ladhon · Hydro · 70 MW · Peloponnese
- Koutsopodi Solar Power Plant · Solar · 2 MW · Peloponnese
- Agrilia Baka Solar Power Plant · Solar · 4.9 MW · Peloponnese
- Xirokambi · Solar · 6 MW · Peloponnese
Location
Coordinates 37.4174, 22.1079 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Megalopoli power station?
Megalopoli power station is a 846 MW coal power plant in Peloponnese, Greece, commissioned in 1979.
How much electricity does Megalopoli power station generate?
Megalopoli power station generates about 2,904 GWh of electricity per year.
Who operates Megalopoli power station?
Megalopoli power station is operated by PPC.