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Gek-Terna Komotini power station

Gas power plant in East Macedonia and Thrace, Greece. Approximate location 41.11813, 25.38942.

GasEast Macedonia and ThraceGreeceCCGT · HRSGSiemens Energy: SGT5-9000HLCO₂ measured

Gek-Terna Komotini power station is a 877 MW gas power station in East Macedonia and Thrace, Greece. It is operated by GEK TERNA Holdings, Real Estate, Construction SA [50%]; Motor Oil Hellas SA [50%. Based on its capacity (estimated), it can supply roughly 988k homes (estimated). It ranks #5 of 99 Greece power plants by installed capacity. Commissioned in 2025, it is around 1 years old — recently built. Its annual emissions of 871 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 203 cars driven for a year. In context, gas supplies about 38.4% of Greece's electricity; the national grid averages 315 gCO₂/kWh (49.7% low-carbon) (2025).

877MW installed capacity
1HRSG unit(s)
987,752homes powered (est.)
871t CO₂ / yr (EU ETS verified (EUTL 2023))
2025commissioned (~1 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GOGPT_gekternakomotini_greece.

Data status

Known data

FacilityGek-Terna Komotini power station GEM-GOGPT
CountryGreece · East Macedonia and Thrace GEM-GOGPT
Coordinates41.11813, 25.38942 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity877 MW GEM · 2026 · L100000401423; operating plant capacity
OwnerGEK TERNA Holdings, Real Estate, Construction SA [50%]; Motor Oil Hellas SA [50% GEM-GOGPT
Commissioned2025 GEM-GOGPT
TechnologyCCGT · Siemens Energy: SGT5-9000HL · HRSG GEM-GOGPT
CO₂ emissions871 t CO₂·a⁻¹ measured · EU ETS verified (EUTL 2023)

Calculated from dataset

Capacity rank in country#5 / 99 calculated
Fuel-specific rank in country#3 / 19 calculated
Capacity vs country/fuel peers1.98× · 444 MW · n=19 calculated
Homes-powered equivalent987,752 calculated
Environmental severityC4 · 40/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM · 2026 · L100000401423; fuel: GEM GOGPT

In context: how this plant compares

At 877 MW, Gek-Terna Komotini power station is well above the median gas plant in Greece (444 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG); Siemens Energy: SGT5-9000HL. 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.

871 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

203passenger cars driven for a year
114homes' yearly energy use
15ktree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per EU ETS verified (EUTL 2023) (measured for US EPA/EU ETS, modelled for Climate TRACE).

Capacity vs largest gas plants in Greece

Ptolemaïda power station: 1,350 MW1kPtolemaïda…Lavrio: 914 MW914LavrioGek-Terna Komotini power station: 877 MW877Gek-Terna …Alexandroupolis Industrial Area power station: 840 MW840Alexandrou…Megalopolis V: 811 MW811Megalopoli…Larissa Thermoelectric power station: 792 MW792Larissa Th…Karatzis Larissa power station: 665 MW665Karatzis L…ElvalHalcor Thisvi power station: 651 MW651ElvalHalco…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by GEK TERNA Holdings, Real Estate, Construction SA [50%]; Motor Oil Hellas SA [50%.

Climate zone & how it works

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a hot-summer Mediterranean climate (Köppen Csa) — Northern Hemisphere, latitude 41.1°N — which shapes how much energy it can produce and how its output varies through the year.

~17°Ctypical annual mean
~27°Ctypical warm-season mean
Hot-summer mediterranean: four distinct seasons — cold winters and warm summers

Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

Site climate & environmental severity

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with marine corrosion the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
40/100environmental-severity index
19.6°Cseasonal temperature swing
40 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 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

Location

Coordinates 41.11813, 25.38942 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Gek-Terna Komotini power station?

Gek-Terna Komotini power station is a 877 MW gas power plant in East Macedonia and Thrace, Greece, commissioned in 2025.

How many homes can Gek-Terna Komotini power station power?

Its output is enough to supply roughly 987,752 homes (estimated).

Who operates Gek-Terna Komotini power station?

Gek-Terna Komotini power station is operated by GEK TERNA Holdings, Real Estate, Construction SA [50%]; Motor Oil Hellas SA [50%.

How much CO₂ does Gek-Terna Komotini power station emit?

Gek-Terna Komotini power station has measured emissions of about 871 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).

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