Renewable energy in Greece

Renewable energy in Greece
Country	Greece

Renewable energy in Greece. The utilization of renewable energy sources has become a central pillar of national energy policy, driven by abundant natural resources and European Union climate directives. The country has made significant strides in integrating wind, solar, and hydropower into its electricity mix, aiming to phase out lignite and enhance energy security. Key developments are overseen by the Hellenic Republic's Ministry of Environment and Energy and regulated by the Regulatory Authority for Energy.

Overview

The evolution of renewable energy deployment accelerated following the country's accession to the European Union and the adoption of supportive frameworks like the Kyoto Protocol. Historically dependent on indigenous lignite for power generation, particularly from the region of Western Macedonia, strategic shifts began after the 2009 Greek government-debt crisis. Landmark legislation, including Law 3851/2010, established feed-in tariffs, catalyzing growth in the photovoltaic and wind farm sectors. Major projects are often developed by companies like Hellenic Petroleum, Mytilineos, and PPC Renewables, a subsidiary of the Public Power Corporation.

Sources of renewable energy

**Solar power** is the dominant source, with high insolation levels favoring both utility-scale photovoltaic park installations and distributed rooftop photovoltaic systems. Notable solar farms include the Kozani Solar Park, one of the largest in Southeastern Europe. **Wind power** is extensively harnessed, especially in the windy islands of the Aegean Sea and mountainous regions of Evia and Thrace; the Kafireas Wind Farm on Evia is a major facility. **Hydropower**, including pumped-storage, provides crucial flexibility, with significant plants operated by the Public Power Corporation on rivers like the Achelous River. Other sources include **biomass** from agricultural residues and nascent projects in **geothermal energy**, particularly on the island of Milos, and **offshore wind prospects in the Aegean Sea.

Government policy and targets

National policy is aligned with the European Green Deal and the Fit for 55 package. The cornerstone is the **National Energy and Climate Plan**, which targets a 35% share of renewable energy in gross final energy consumption by 2030. Key mechanisms have transitioned from feed-in tariffs to competitive bidding through auctions administered by the Regulatory Authority for Energy. The government also promotes **energy communities** through laws like 4513/2018, enabling local participation. These efforts are supported by funding from the Recovery and Resilience Facility and the European Investment Bank.

Infrastructure and grid integration

Integrating variable renewables poses challenges for the national grid operator, Hellenic Electricity Distribution Network Operator. Major upgrades to the transmission system, including interconnections to islands like Crete via the Attica-Crete interconnection, are critical to reducing reliance on diesel generators. The Independent Power Transmission Operator is overseeing these projects. The development of **energy storage**, such as the pumped-storage facility at Sfikia, and the planned adoption of **smart grid technologies are priorities. Furthermore, interconnection projects like the EuroAsia Interconnector and the Greece-Italy interconnection aim to enhance regional market integration.

Economic and environmental impact

The renewable sector has attracted significant foreign investment from companies like Iberdrola and Enel Green Power, creating jobs in manufacturing, construction, and maintenance. It has substantially reduced greenhouse gas emissions, aiding compliance with European Union emission trading system targets. The decline of lignite has prompted **just transition** initiatives in regions like Western Macedonia, supported by the European Union's Just Transition Fund. The growth of renewables also improves trade balance by reducing fossil fuel imports, a strategic concern given historical tensions over energy routes in the Eastern Mediterranean.

Challenges and future prospects

Key challenges include **administrative and licensing complexities**, often involving multiple agencies and protracted processes. **Grid constraints** in the non-interconnected island systems remain a bottleneck. Social acceptance issues, sometimes termed "**not in my backyard**" opposition, can delay wind and solar projects. Future prospects focus on exploiting high-potential areas like **offshore wind** in the Aegean Sea, advancing **green hydrogen production supported by projects like the White Dragon initiative, and expanding regional interconnectors. The long-term vision, as outlined in the **National Energy and Climate Plan**, positions the Hellenic Republic as a renewable energy hub for Southeastern Europe.

Category:Energy in Greece Category:Renewable energy by country