Feasibility Analysis of Storage and Renewable Energy Ancillary Services for Grid Operations

Evyatar Littwitz () and Ofira Ayalon ()
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Evyatar Littwitz: School of Environmental Sciences, University of Haifa, Abba Khoushy Ave 199, Haifa 3498838, Israel
Ofira Ayalon: School of Environmental Sciences, University of Haifa, Abba Khoushy Ave 199, Haifa 3498838, Israel

Energies, 2025, vol. 18, issue 11, 1-37

Abstract: This study examines the feasibility of deploying renewable energy sources and storage systems to provide ancillary services (ASs), traditionally supplied by conventional power systems, in an electric-island power grid. As renewable energy penetration grows, grid stability becomes increasingly challenged as reduced system inertia and higher variability occur. The study focuses on Israel, which currently lacks operational AS markets. This research explores regulatory, economic, and technical mechanisms to enable renewables and storage systems to provide such services, using a comparative analysis of Germany and California, US, as use cases, along with interview analysis with experts from the Israeli energy sector. The findings highlight, on the one hand, notable regulatory and infrastructural barriers limiting the ability of alternative sources to provide ancillary services. On the other hand, the feasibility and importance of integrating renewables and storage, as regulatory adjustments, market-based procurement mechanisms, and incentive schemes, are to be undertaken. Adopting a structured AS market in Israel, influenced by international best practices, can improve grid resilience, allowing higher renewable integration and supporting long-term energy security and sustainability.

Keywords: ancillary services; renewable energies; storage systems; energy markets; res integration; regulatory framework (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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