Efeler is a 114 MW geothermal power station in Aydin, Turkey. It is operated by Güriş Holding. Based on its capacity (estimated), it can supply roughly 214k homes (estimated). It ranks #300 of 502 Turkey power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, geothermal supplies about 3.0% of Turkey's electricity; the national grid averages 475 gCO₂/kWh (43.3% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1018954.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
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 114 MW, Efeler is well above the median geothermal plant in Turkey (34 MW). Geothermal plants tap underground heat to raise steam for a turbine; they provide steady, low-carbon baseload but are limited to geologically active regions.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Share of Turkey geothermal capacity
- 23.8% of 480 MW across 11 plants in this dataset
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest geothermal plants in Turkey
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Güriş Holding.
Local climate & thermal context
This geothermal plant taps underground heat to raise steam that drives a turbine. It sits in a hot-summer Mediterranean climate (Köppen Csa) — Northern Hemisphere, latitude 37.9°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 46% 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: 31/100 — this site sits in the bottom 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 #1 largest geothermal power plant of 11 in Turkey by capacity.
Turkey has 11 geothermal power plants in this dataset, together about 480 MW of capacity.
Nearby power plants
- Galip Hoca Germencik · Geothermal · 47 MW · Aydin
- Deniz · Geothermal · 24 MW · Aydin
- Gümüşköy · Geothermal · 13 MW · Aydin
- Kipas MMP power station · Coal · 55 MW · Aydin
- Kipas MMP power station · Coal · 55 MW · Aydın
- Mavi Bayrak power station · Biomass · 12 MW · Aydin
Location
Coordinates 37.8656, 27.6474 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Efeler?
Efeler is a 114 MW geothermal power plant in Aydin, Turkey.
Who operates Efeler?
Efeler is operated by Güriş Holding.