EXECUTIVE SUMMARY
A new high-volume manufacturing facility in Changzhou has begun producing EnerVenue’s Aqueous Metal Cells for stationary energy storage applications. The 250 MWh line supports systems that can integrate onsite solar and other generation, with annual production capacity planned to reach 1 GWh in 2027.
Company: EnerVenue
Technology: Aqueous Metal Cell (AMC), nickel-hydrogen chemistry
Initial capacity: 250 MWh annually
2027 target: 1 GWh annually
2028 target: Multi-GWh scale
Location: Changzhou, Jiangsu, China
Plant area: Around 20,000 square meters
Production rate: Approximately 300 cells per day at full automation
Quality control: 41 checks across 11 test and measurement stations
Cell design life: 30,000 charge cycles
Storage products: 30 kWh to 1 MWh configurations
EnerVenue, a US-based energy storage technology company, has started production at its first high-volume Aqueous Metal Cell (AMC) manufacturing line in Changzhou, China, adding production capacity for stationary energy storage systems that can be paired with solar and other onsite electricity generation. The initial phase has an annual manufacturing capacity of 250 MWh, with plans to increase production to 1 GWh in 2027 and reach multi-GWh scale by 2028.
The Fremont, California-based energy storage company develops water-based nickel-hydrogen battery technology for distributed energy, commercial and industrial facilities, data centers and grid-connected applications. EnerVenue's fourth-generation cells are designed for 30,000 charge cycles, with the company specifying operation of up to three cycles per day over 30 years.
The Changzhou facility covers around 20,000 square meters and has space allocated for a second phase of similar size. At full automation, the manufacturing line is designed to produce approximately 300 fourth-generation Aqueous Metal Cells per day. Automated guided vehicles transport cells between production stations, while a manufacturing execution system connects equipment across the line.
Each cell undergoes 41 quality checks across 11 test and measurement stations, covering areas including weld integrity, leak tightness and performance. Fully commissioned 150 kWh Energy Racks are also tested at the facility before shipment.
For solar and distributed energy applications, the cells are incorporated into several configurations. These include the 30 kWh Energy Core, 108 kWh Energy Cube, 150 kWh Energy Rack, and containerized Energy Prism systems ranging from 600 kWh to 1 MWh.
EnerVenue said its fourth-generation AMC technology has already been operating at Jintan in Changzhou since November 2025. That installation integrates onsite renewable generation with electric-bus charging, providing a direct use case for pairing distributed generation and battery storage.
The company has also secured an 11 MWh commercial order comprising 26 Energy Prism containers for an oilfield company in Northern China. The systems will pair onsite electricity generation with storage, with the first containers scheduled for shipment in December 2026.
The Changzhou manufacturing line was funded through EnerVenue's $300 million Series B extension, announced in March 2026 and led by Full Vision Capital.