New EASAC Commentary Calls for Rapid Energy System Integration to Address Europe’s Energy Crisis

Brussels, 16 April 2026 – Europe is facing what experts describe as the most significant energy crisis in a century, increasing the urgency to accelerate the transition to home-grown renewable energy sources. A new commentary released by the European Academies Science Advisory Council (EASAC) highlights that large-scale transformation and integration of energy systems is now a strategic priority.

As debates intensify across Europe on how to respond to rising energy prices, maintain secure supply and restore affordability and industrial competitiveness, the commentary provides a science-based roadmap for action. It outlines how integrating renewable energy sources and modernising grid infrastructure can support faster decarbonisation, reduce reliance on volatile fossil fuel markets, ease pressure on electricity grids and lower long-term costs for consumers and industry.

According to Paula Kivimaa, Co-Chair of the EASAC Energy Steering Panel, the current energy crisis points clearly toward the need for decisive action. She notes that strengthening decarbonisation efforts is essential to improving Europe’s long-term energy security.

The commentary explains that energy system integration can help mitigate the impacts of the crisis through several key approaches. Electrifying sectors such as heating, transport and industry, combined with the use of thermal energy storage, can significantly reduce dependence on fossil fuels. Improved grid flexibility, supported by modern voltage and frequency control systems, can limit the need for fossil fuel-based backup generation. In addition, smart energy systems that align electricity demand with solar production during the day and optimise storage for night-time use can reduce the need for costly grid expansion and help avoid delays linked to permitting processes.

The commentary also reflects on lessons from previous oil crises. Measures such as improved building insulation, stronger energy efficiency standards as well as greater public awareness led to lasting structural changes in energy use. Today, the availability of advanced renewable technologies provides an even stronger foundation for transformation.

EASAC emphasizes that timely policy decisions will be critical. Acting quickly can help reduce Europe’s exposure to future disruptions in fossil fuel supply chains and support a more resilient, affordable and sustainable energy system.

Please find under the following links the commentary and the infographic.