Greek solar power supply system

November 2023, Greece submitted its NECP with more ambitious and updated targets for renewables and solar: 23.5 GW for all forms of renewables, from which 13.4 GW came from solar power capacity. However, there is no roadmap or strategy at this time in regards to rooftop solar PV in particular.

Currently, probably the main reason that impedes solar development and that makes administrative procedures long and burdensome in Greece, including rooftop solar, is grid availability. In many areas, applications for solar rooftop PV are being rejected due to lack of electricity grid capacity.

Energy sharing is facilitated through energy communities and Greece is a frontrunner in establishing energy communities, with over 1,600 communities active since August 2023. Recent legislation introduced new types of energy communities, prioritising self-consumption projects and limiting profit distribution to prevent exploitation.

As shown in Fig. 3, PVs have considerably reduced the (transmission) system load; this fact contributed drastically to solve the severe voltage stability problems that the Greek system faced for almost two decades, especially during peak hours (noon) in summer.

Due to its geographical position and shape, Greece has a veri ed high wind and solar potential (especially at the eastern part of the country), and the western part has a signi cant hydro potential (mainly at the west) that is already being exploited.

Although, efforts are underway to increase grid capacity. Energy sharing is facilitated through energy communities and Greece is a frontrunner in establishing energy communities, with over 1,600 communities active since August 2023.