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Energy Aggregators in Greece: Market Structure, Leading Participants and Portfolio Outlook to 2030
Greece’s electricity system is accelerating towards a flexible, renewables-centric architecture. At the centre of this transition stand energy aggregators – market participants responsible for representing renewable-energy plants, battery storage systems and demand-side flexibility assets within the day-ahead, intraday and balancing markets. Their role is pivotal in managing volatility, enabling efficient market participation and supporting grid…
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ABL to support installation of Greek interconnector
Energy and marine consultancy ABL has been appointed as marine warranty survey (MWS) services provider to support Hellenic Cables’s installation of the upgraded interconnectors that will improve the energy resilience at Greece’s Ionian islands. This interconnector project involves the installation of submarine cables between Kefalonia and Zakynthos, and Lefkada and Kefalonia. The project will upgrade…
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Greece Energy Roundup — October 2025
October 2025 was a dynamic month for Greece’s energy transition, marked by a wave of announcements and milestones across solar, wind, hydrogen, energy storage and grid development. The country continued to position itself as a key player in the region’s decarbonisation and energy security agenda, with both public and private sectors accelerating investment in low-carbon…
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METLEN inks 10-year 235 MW solar PPA with ENGIE
METLEN announces the signing of a 10-year Power Purchase Agreement (PPA) with ENGIE, a leading energy transition utility. Under the PPA, METLEN will supply solar generated power from six sites located in the United Kingdom. The power capacity of the solar portfolio, covered in the agreement, totals 235 MW, providing ENGIE with over 233 GWh of clean electricity annually. These volumes will…
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Powering the Blue and the Green: How Greece Is Aligning Energy and Maritime Decarbonisation
Greece has long been synonymous with shipping. Greek shipowners control the largest merchant fleet in the world, with around 5,700 vessels — representing 20% of global tonnage and 61% of the EU fleet. Dominant in tankers and LNG carriers, and a major player in bulk and container shipping, the Greek maritime sector generates an estimated $40…
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Greek PPC 5NC2 green SUN final terms: €775m at 4.25%
Public Power Corporation S.A. (PPC), Greece’s largest electricity supplier, has recently issued a €775 million green bond under the “5NC2 Green SUN” structure, marking a significant step in its sustainable finance strategy. The bond carries a fixed annual coupon of 4.25% and is set to mature in 2030. This issuance primarily aims to refinance PPC’s…
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Powering Greece’s Energy Future: Battery Storage Projects Are Evolving Beyond Subsidies
Battery Energy Storage Systems (BESS) in Greece are transitioning from early-stage pilots to critical infrastructure, driven by a rapidly maturing regulatory framework and increasing investor appetite. Multiple large-scale projects are now underway, providing a clearer view of which revenue models and financing structures are viable and likely to dominate over 2025–26. Recent examples demonstrate this…
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Principia Launches Greece’s “Themelio” — Landmark 49 MW / 98 MWh Energy Storage Unit in Chalkidiki
Principia has announced the completion of its first Battery Energy Storage System (BESS) unit — commercially named “Themelio” — in the Vouno area of Chalkidiki, near Polygyros. As one of the first grid-scale BESS installations in Greece, the project represents a major milestone for the company and contributes significantly to the country’s clean energy transition. A New…
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Apple expands renewable energy projects across Europe
Apple is significantly expanding its clean energy projects across Europe with new large-scale solar and wind farms now in development in Greece, Italy, Latvia, Poland, and Romania. Together with a newly operational solar array in Spain, the projects announced today — all enabled by Apple — will add 650 megawatts of renewable energy capacity to…
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Greece’s Big Battery Push: Ambitious BESS Plans Aim High Amid Market Challenges and Investor Caution
In 2025, Greece has accelerated its plans for utility-scale Battery Energy Storage Systems (BESS), signalling a shift in policy, financing, and market expectations. However, while the scale of ambition is high, there are several tensions emerging—especially around the move toward unsponsored (merchant) projects. The Voice of Renewables looked closely at numbers and recent announcements and…
