Greece closed 2025 with 5,695 MW of grid-connected wind power capacity, according to the Hellenic Wind Energy Association (ELETAEN). During the year, 76 new turbines were installed, adding 340 MW and representing investments exceeding €420 million, a 6.4% increase compared to the end of 2024.

Following a sharp decline in 2024, the pace of new installations has returned to the decade’s average, reflecting the resilience of the wind sector. This growth is attributed to the efforts of wind energy companies, their management teams, and the scientific community, who continue to implement projects in a complex regulatory and bureaucratic environment.

By the end of 2025, more than 1.1 GW of new wind farms were under construction or contracted, with the majority expected to be connected within the next 18 months. An additional 200 MW, awarded through auctions and guaranteed for compliance, will further expand capacity. As a result, Greece’s total wind power capacity is projected to surpass 6.5 GW in the coming year and a half.

Central Greece leads in wind installations, hosting 2,466 MW (43.3%), followed by the Peloponnese with 790 MW (13.9%) and Eastern Macedonia – Thrace with 535 MW (9.4%).

Top Investors

The leading wind energy investors in Greece are:

• TERNA Energy: 1,034 MW (18.2%)

• MORE: 774 MW (13.6%)

• Iberdrola Rokas: 409 MW (7.2%)

• Principia: 368 MW (6.5%)

• PPC Renewables: 319 MW (5.6%)

Other key players include Total Energies, EDF, METLEN, Jasper Energy, Cubico, and Quantum Energy Partners.

Vestas supplied 44% of the total installed wind capacity in Greece, followed by Enercon (25%), Siemens Gamesa (15.8%), Nordex (9.2%), and GE Renewable Energy (4.3%). Smaller shares were supplied by Goldwind, EWT, Leitwind, and Vensys.

For the 2025 installations, turbine supply was distributed as follows: Nordex (133 MW – 39%), Vestas (109.1 MW – 32%), GE Renewables (42 MW – 12.3%), Enercon (37.3 MW – 11%), Goldwind (14.8 MW – 4.3%), and Vensys (1 MW – 1.2%).

Between 2018 and 2022, 1,592 MW of wind projects were selected via RAE auctions, considered mature and ready for operation. However, by the end of 2025, only 852.4 MW (53.5%) had been commissioned, primarily due to bureaucratic delays. These setbacks have economic consequences, as the auctioned but unimplemented projects could have provided electricity at costs significantly lower than natural gas or lignite, offering permanent relief to consumers and the national economy.

Hourly wind energy contributions in 2025

• The highest hourly wind penetration in the Greek Interconnected System reached 97.2% on 28 April 2025 (04:00 – 05:00).

• Wind generation exceeded 50% of demand for 616 hours throughout the year.

• Combined wind and solar penetration surpassed 50% for 3,335 hours.

• Wind and solar generation met or exceeded 100% of demand for 212 hours in 2025.

These figures highlight the growing role of wind energy in Greece’s electricity mix and its contribution to the country’s energy transition, according to ELETAEN’s Annual Wind Energy Statistics.