Global Battery and Long‑Duration Energy Storage Markets Project Strong Growth

Battery Energy Storage Systems (BESS) are being adopted worldwide to improve grid reliability and resilience. Their fast, flexible response helps balance supply and demand, supports frequency regulation, provides voltage support, and manages peak loads, especially as renewable penetration and power disruptions increase.

The Long Duration Energy Storage (LDES) market was valued at USD 3.27 billion in 2025 and is forecast to reach USD 4.93 billion by 2034, growing at a 4.75% CAGR. North America held a 37% share in 2025. Large‑scale projects are emerging, such as Energy Vault’s 25 MW/100 MWh gravity storage system in China and pumped‑hydro installations in India totalling 1,400–1,800 MW. In August 2025, State Grid Corporation of China completed the Fengning Pumped Storage Power Station, the world’s largest mechanical storage facility at 3.6 GW. Market drivers include expanding renewable energy integration and supportive policies like the U.S. Inflation Reduction Act tax credits, the UK’s revenue‑guarantee scheme, and India’s 2025 budget allocations. The U.S. Department of Energy also announced USD 15 million for new storage technology projects in June 2025.