Brussels, 29 May 2026 – ENTSO-E publishes its assessment of Europe’s resource adequacy for the summer of 2026. The report, which assesses generation, demand, and other flexible resources across the pan-European system, confirms no systemic adequacy risks for most parts of Europe, while highlighting residual concerns in some isolated or weakly interconnected regions.
The Summer Outlook report is designed to inform national and European authorities on system risks. No systemic adequacy risks are identified for the rest of the European power system this summer. Specific risks exist in Ireland, Malta, and Cyprus because of planned generation outages, limited import capacity, and low availability of backup resources.
Adequacy risks are identified in Moldova for summer 2026, which are mainly driven by current limitations in natural gas supply, affecting the availability of thermal generation. Furthermore, Moldova also remains vulnerable due to its reliance on imports, weak interconnections, dependence on transmission through the Transnistria region and exposure to disturbances in the Ukrainian power system.
The report confirms again the system changes that Transmission System Operators (TSOs) collectively are addressing. Renewable (RES) production keeps expanding. Since last summer, 126 GW, mainly solar PV, has been added. Especially during periods of high renewable generation, combined with low demand, this can lead to a temporary higher supply of electricity compared to demand, which TSOs handle by exports and other flexibility measures.
While battery storage capacity has doubled to 29 GW since the previous summer and high-carbon generation continues to decline, the need for flexibility solutions – like interconnection, storage, and demand-side response, and careful operational coordination – becomes more essential than ever.
The geopolitical situation in the Middle East, including the closure of the Strait of Hormuz, has increased uncertainty in global energy markets and supply routes. However, no significant concerns on electricity adequacy are currently expected in Europe for the summer period as a result of the disruption in the Middle East. Further attention is especially needed in preparations for the upcoming winter period. The situation is closely monitored.
ENTSO-E’s Summer Outlook report demonstrates the added value of a pan-European scope for adequacy analysis while complementing adequacy assessments carried out on a national and regional level. Transmission System Operators across Europe are closely monitoring identified risks and are prepared to manage the situation. A wide range of processes, implemented in close collaboration across countries, ensure that these risks are addressed effectively.
Read the ENTSO-E Summer Outlook 2026 report here.
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About ENTSO-E
ENTSO-E, the European Network of Transmission System Operators for Electricity, is the association for the cooperation of the European transmission system operators (TSOs).
The 40 member TSOs, representing 36 countries, are responsible for the secure and coordinated operation of Europe’s electricity system, the largest interconnected electrical grid in the world.
Press contact: media@entsoe.eu