About the Summit

The energy sector is entering a new era of power system transformation. Driven by net-zero commitments, rapid renewable energy deployment, increasing electricity demand, and growing concerns over energy security, long duration energy storage (LDES) is becoming a critical technology for building reliable, flexible and resilient low-carbon electricity systems. Utilities, grid operators and project developers are accelerating investment in grid-scale energy storage, advanced storage technologies, power system flexibility, renewable integration, digital energy management and next-generation storage solutions to support the transition towards a net-zero energy future. Deploying long duration energy storage presents significant technical, commercial and regulatory challenges. As electricity systems become increasingly dependent on renewable generation, the sector must balance grid reliability, operational flexibility, investment costs and long-term commercial viability. At the same time, project developers are facing increasing pressure from evolving market frameworks, revenue uncertainty, technology selection, supply chain resilience, permitting requirements and growing demand for energy security. Achieving the next stage of energy transition will require advances in flow batteries, liquid air energy storage, compressed air energy storage, thermal energy storage, hydrogen-based storage, artificial intelligence, digital optimisation, power electronics, system integration and advanced energy management technologies. Success will also depend on stronger collaboration across utilities, transmission system operators, technology providers, equipment manufacturers, engineering companies, investors, research organisations and policymakers to accelerate innovation and commercial deployment. Long Duration Energy Storage Europe 2027 (LDES Europe 2027) brings together utilities, transmission and distribution system operators, renewable energy developers, energy storage technology providers, engineering companies, equipment manufacturers, investors, research organisations and industry leaders to explore the technologies, commercial strategies and partnerships shaping the future of long duration energy storage. The summit will examine practical solutions for improving grid flexibility, accelerating renewable integration, strengthening energy resilience and scaling commercial deployment across Europe. Hosted in Slough, United Kingdom, LDES Europe 2027 provides a platform for knowledge exchange, commercial collaboration and strategic networking. By connecting decision-makers from across the long duration energy storage value chain, the summit aims to accelerate technology commercialisation, support investment in next-generation energy storage systems and help build a more reliable, flexible and sustainable European energy system.