Plastiras — Greece

Plastiras is a 130 MW hydro power station in Thessaly, Greece. It is operated by Public Power Corporation SA [100%]. Based on reported annual generation of 180 GWh, it can supply roughly 51k homes. It ranks #41 of 99 Greece power plants by installed capacity. Commissioned in 1959, it is around 67 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 5.9% 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 WRI1061082.

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000601761; fuel: WRI GPPD

In context: how this plant compares

At 130 MW, Plastiras is below the median hydro plant in Greece (160 MW). Technically it is described as conventional storage. Hydropower converts the energy of falling or flowing water into electricity; output depends on rainfall and reservoir level, and large dams also provide grid balancing and storage.

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

Key facts

Load factor

16%, from 180 GWh of reported generation; the median for 11 hydro plants in Greece that report generation is 12%

Generation trend

154 GWh in 2015 and 180 GWh in 2017 (+17%)

Highest and lowest year

2016: 184 GWh; 2015: 154 GWh

Share of Greece hydro capacity

3.5% of 3,729 MW across 18 plants in this dataset

Age among peers

2 of 16 dated hydro 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 Public Power Corporation SA [100%].

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a hot-summer Mediterranean climate (Köppen Csa) — Northern Hemisphere, latitude 39.2°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 12% 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: 56/100 — 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 #13 largest hydro power plant of 18 in Greece by capacity.

Greece has 18 hydro power plants in this dataset, together about 3,729 MW of capacity.

Nearby power plants

• Karditsa · Solar · 9 MW · Thessaly
• Smokovo · Hydro · 10 MW · Thessaly
• Sykia · Hydro · 160 MW · Thessaly
• Panagia Solar Power Plant · Solar · 4 MW · Central Greece
• Kremasta · Hydro · 437 MW · Central Greece
• Messochora · Hydro · 160 MW · Epirus

Location

Coordinates 39.2413, 21.7479 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions