The installed wind capacity connected to the grid has exceeded 5.5 GW. Specifically, Greece’s total wind power capacity reached 5,507 MW at the end of June 2025. This is according to the annual Wind Energy Statistics report published by the Hellenic Wind Energy Association (ELETAEN).
According to the data, during the first half of 2025, 37 new wind turbines with a total capacity of 152.2 MW were connected to the grid, corresponding to investments worth €180 million. This represents a 2.8% increase compared to the end of 2024.
This growth rate is double that of the previous year (2024). While this is positive, it is still not sufficient to restore balance in the renewable energy technology mix.
Investments Underway
By the end of June 2025, over 1 GW of new wind farms were either under construction or had signed contracts, the vast majority of which are expected to be connected to the grid within the next 18 months. An additional 300 MW, selected through competitive tenders and having submitted performance guarantees, are also in the pipeline but are not yet under construction. As a result, total installed wind capacity is estimated to reach 6.5 GW at the end of this period.
By region, Central Greece remains the leader in wind installations, hosting 2,427 MW (44%). It is followed by the Peloponnese with 709 MW (13%) and Eastern Macedonia–Thrace with 535 MW (9.7%).
Key Market Players
The top-5 companies in terms of installed capacity are:
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TERNA Energy with 1,034 MW (18.8%)
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MORE with 774 MW (14.1%)
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Iberdrola Rokas with 409 MW (7.4%)
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Principia with 368 MW (6.7%)
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PPC Renewables with 308 MW (5.6%)
Other notable players include Total Energies, EDF, METLEN, Jasper Energy, among others.
As for wind turbine manufacturers:
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Vestas supplied 45.1% of Greece’s total installed wind capacity.
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Enercon follows with 25.7%, Siemens Gamesa with 16.4%, Nordex with 7.6%, and GE Renewable with 3.7%. Smaller shares are held by EWT, Goldwind, and Leitwind.
In the first half of 2025, the new turbines were supplied by:
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Vestas (84.9 MW – 55.8%)
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Enercon (37.3 MW – 24.5%)
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Nordex (30 MW – 19.7%)
All reported figures refer to grid-connected capacity.
Projects from Competitive Tenders
Between 2018 and 2022, competitive tenders organized by the Regulatory Authority for Energy (RAE) selected wind projects totaling 1,592 MW. These projects are mature and should already be operational.
However, due mainly to bureaucratic obstacles, only 746 MW (47%) had actually entered operation by the end of the first half of 2025.
These delays have significant consequences. The compensation price set for these wind projects is much lower than the cost of electricity production from natural gas or lignite. If the remaining 846 MW had been completed on time, they would have provided more affordable energy and permanent relief to Greek consumers and the national economy.
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