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Optimal PV Sizing and Demand Response in Greek Energy Communities Under the New Virtual Net-Billing Scheme

Author

Listed:
  • Ioanna-Mirto Chatzigeorgiou

    (Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece)

  • Dimitrios Kitsikopoulos

    (Department of Spatial Planning and Development, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece)

  • Dimitrios A. Papadaskalopoulos

    (Department of Electrical and Computer Engineering, University of Patras, 26504 Patras, Greece)

  • Alexandros-Georgios Chronis

    (Department of Electrical and Computer Engineering, National Technical University of Athens, 15780 Athens, Greece)

  • Argyro Xenaki

    (Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece)

  • Georgios T. Andreou

    (Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece)

Abstract

Energy Communities have emerged as a key mechanism for promoting citizen participation in the energy transition. In Greece, recent legislation replaced the virtual net-metering scheme with a virtual net-billing framework, introducing new economic and regulatory conditions for shared renewable energy investments. This study develops an optimization tool for determining the optimal PV system size and Demand Response actions for individual EC members under this new framework. The model is constructed to align closely with the current regulatory and legal context, incorporating technical, economic, and policy-related constraints. It uses real electricity production and consumption data from existing Greek ECs, as well as 2024 Day Ahead Market prices, grid fees, and surcharges. The results emphasize the importance of customized sizing strategies and suggest that policy refinements may be needed to ensure equitable participation and maximize community-level benefits.

Suggested Citation

  • Ioanna-Mirto Chatzigeorgiou & Dimitrios Kitsikopoulos & Dimitrios A. Papadaskalopoulos & Alexandros-Georgios Chronis & Argyro Xenaki & Georgios T. Andreou, 2025. "Optimal PV Sizing and Demand Response in Greek Energy Communities Under the New Virtual Net-Billing Scheme," Energies, MDPI, vol. 18(19), pages 1-24, September.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:19:p:5082-:d:1757290
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    References listed on IDEAS

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