Greece’s installed wind power capacity reached 5,507MW by the end of June 2025 following the connection of 152MW across 37 turbines in the first half of the year, according to the Hellenic Wind Energy Scientific Association.
The new capacity represents a 2.8% increase since the end of 2024, supported by wind investments totalling €180m.
ELETAEN said this marks a doubling of the annual growth rate compared to 2024, although more is needed to achieve balance in the country’s renewables mix.
At the end of June, more than 1GW of new wind projects were either under construction or contracted, with most expected online within 18 months.
A further 300MW has been selected in tenders and submitted performance bonds but falls outside those categories.
ELETAEN estimates total wind capacity will reach 6.5GW by the end of the current buildout phase.
Central Greece remains the region with the most wind capacity at 2,427MW, followed by the Peloponnese with 709MW and Eastern Macedonia–Thrace with 535MW.
Between January and June, Vestas supplied 84.9MW of turbines, equal to 55.8% of new additions, followed by Enercon with 37.3MW (24.5%) and Nordex with 30MW (19.7%).
Across all operational wind capacity in Greece, Vestas holds a 45.1% market share, followed by Enercon with 25.7%, Siemens Gamesa with 16.4%, Nordex with 7.6% and GE Renewable Energy with 3.7%.
Among investors, Terna Energy leads with 1034MW or 18.8% of capacity, ahead of MORE with 774MW (14.1%), Iberdrola Rokas with 409MW (7.4%), Principia with 368MW (6.7%) and PPC Renewables with 308MW (5.6%).
ELETAEN said wind farms totalling 1,592MW were awarded contracts in tenders held between 2018 and 2022.
However, only 746MW-or 47%-of that total had been commissioned by mid-2025 due to bureaucratic delays.
The association warned the incomplete projects would have supplied lower-cost electricity than fossil generation and offered relief to consumers and the economy.
It added that the wind energy geoinformation map would be updated in the coming days.