Rudong, China Gravity Storage System

Energy Vault's groundbreaking EVx™ is the world's first commercial-scale Gravity Energy Storage System (GESS), providing industry leading round-trip efficiency and a 35-year operating life.

The 25 MW/100 MWh EVx™ Gravity Energy Storage System (GESS) is a 4-hour duration project built outside of Shanghai in Rudong, Jiangsu Province, China. The EVx™ sits directly adjacent to a wind farm and national grid. It augments and balance China's energy grid through the shifting of renewable energy to serve the State Grid Corporation of China (SGCC). The system is fully grid interconnected and has been successfully tested and commissioned with local grid authorities.

The EVx™ system is projected to achieve an impressive round-trip efficiency exceeding 80%. This places the new gravity system at the forefront of energy storage efficiency compared to alternative long duration energy storage methods such as mechanical, thermodynamic, compressed air, and flow battery systems. With a projected operational lifespan of 35 years, this project aligns with China's "Zero-Carbon parks" initiative and national "30-60" net carbon neutral plan. This inaugural deployment sets a benchmark for worldwide collaborations in decarbonization technology.