The EU's first tripartite agreement on energy storage, signed in June, puts batteries at the heart of plans to capture more solar and wind power. The technology is ready and getting cheaper, but market rules, grid delays, industrial policy and raw-material politics still hold it back. #EuXl

Europe signed an agreement to expand its energy storage capacity to improve energy security and keep prices competitive for citizens and industries. But what does the agreement…

Europe is producing more renewable electricity than ever before, but much of it cannot be used when demand is highest. For that, EU governments have launched a new push to expand…