Strong foundation for further growth

Greece has built a strong foundation in wind energy, making it a key player in the country’s overall renewable energy mix. The wind sector, which laid the groundwork for Greece’s impressive RES penetration, is now poised for further growth both onshore and offshore.

Onshore wind development

• Current capacity and growth: As of June 2023, Greece’s onshore wind capacity stands at approximately 4.9 GW. The report projects that this capacity could expand to around 7.6 GW by 2030. This growth is driven by a robust pipeline of projects that have already secured connection offers from the national Transmission System Operator (IPTO). Key regions expected to contribute to this expansion include Central Greece, Western Macedonia, Western Greece, Peloponnese, and Thessaly.
• Technology and market players: Onshore wind projects in Greece are characterized by continuously increasing turbine sizes—with rotor diameters now exceeding 160 meters. The market is led by prominent players such as TERNA Energy, with a growing presence from companies traditionally rooted in the oil and gas sector (e.g., MORE and HELLENiQ Energy). Major turbine suppliers include Vestas (with a market share of around 47%), Enercon (26%), and SGRE (17%).
• Upgrading and retrofitting: Despite healthy new investments, a significant portion of Greece’s onshore wind fleet is aging—approximately 400 MW of capacity is already over 20 years old. This presents an opportunity for cost-effective upgrading and retrofitting solutions, allowing operators to enhance performance and extend the life of existing assets.

Offshore wind prospects

• Emerging potential: Offshore wind in Greece is set to complement onshore activities as the country gears up for a new era in renewable energy. Although still in its nascent stage, the government’s recent legislative actions under Law 4964/2022 have paved the way for offshore wind development. The National Offshore Wind Farms Development Programme, announced in October 2023, outlines a strategic framework to harness offshore potential.
• Planned capacity and technology: According to the programme, Greece’s offshore wind potential is estimated at 12.4 GW across 25 designated areas. For the mid-term horizon (up to 2030–2032), at least 1.9 GW of offshore wind capacity is expected to be developed. Given the specific marine conditions, most of these projects will rely on floating turbine technology, with pilot projects already underway in regions like Evros-Samothraki, where fixed-bottom solutions are also viable due to shallower waters.
• Implementation roadmap: The development plan includes a detailed roadmap with milestones from the submission of the national programme and technical studies to the commencement of construction by 2028. Critical actions involve:
  • Finalizing Area of Organised Development (AOD) designations.
  • Conducting environmental and technical impact assessments.
  • Securing grid connection allocations, with the government earmarking at least 2 GW of transmission capacity specifically for offshore wind.

Greece’s wind energy sector has proven its potential over the past two decades, setting the stage for future expansion. With a strong onshore pipeline already in place and ambitious plans for offshore wind, the country is well positioned to further decarbonize its power mix. Investment in advanced turbine technology, grid enhancements, and retrofitting of aging assets will be key to unlocking the full potential of Greece’s wind resources.

By leveraging both domestic expertise and strategic international partnerships, Greece aims to not only meet its growing energy needs but also emerge as a regional leader in renewable energy innovation.

This information is updated in March 2025

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