EnerVenue has announced the successful operation of a pilot energy storage project in Jintan, Changzhou, China, owned and managed by Towngas, Hong Kong’s first public utility and a major energy supplier in China.
The Towngas site combines renewable energy generation with EV bus charging infrastructure. At this facility, EnerVenue is showcasing the high-cycle performance of its Aqueous Metal Cells (AMCs), which can continuously charge and discharge in 2- to 4-hour cycles to meet changing power demand while lowering energy costs. Unlike conventional lithium-ion batteries that typically need cooling and rest periods between cycles, AMCs are designed to handle constant cycling without rapid degradation or thermal safety concerns.
Henning Rath, Chief Executive Officer, EnerVenue, said, “Towngas does not choose technology that might work; they want technology they know will function safely, efficiently, and reliably every day, for decades. These demanding requirements are exactly what our fourth-generation AMC and Energy Rack technology were designed to meet, and we’re very proud to demonstrate their performance under real-world conditions.”
The pilot operates a customized version of EnerVenue’s modular Energy Rack. Packaged within an outdoor-rated housing are 50 AMCs delivering a total storage capacity of 150kWh, complete with an inverter, and battery management system.
EnerVenue’s AMC technology offers a unique combination of durability, robustness, and safety, making it ideally suited to commercial, industrial, and grid-scale applications. With a 30,000-cycle design life – compared to the 6,000-8,000 cycles typical of lithium-ion batteries – it also combines low total cost of ownership with maximum uptime and minimal maintenance requirements.
These key attributes are reinforced by AMC’s ability to operate in a wide range of ambient temperatures – lab tested from -20°C to +60°C – making Energy Racks suitable for installation in harsh environments and remote locations without the need for complex heating and cooling systems. Sustainability is also superior to currently available batteries: the cells do not use lithium or toxic electrolytes, and recyclability at end-of-life is simple.
“As a major energy supplier operating throughout China, Towngas is committed to clean energy solutions that support the transition to a sustainable, low-carbon future, said Peter Wong Wai-yee, Managing Director of Towngas. “Long-life grid-scale storage that is safe, reliable, and low-maintenance is essential to maximizing the cost-effectiveness and widespread deployment of renewables. EnerVenue’s technology can play a key role in this, and we’re delighted to be the first to field test the latest generation technology.”
The Towngas pilot will be joined by more commercial demonstration systems with other partners worldwide in the coming months. In parallel, EnerVenue’s recently announced $300 million funding round will enable the rapid scale-up of the company’s manufacturing operations in Changzhou, China, where the company’s fourth-generation AMC technology and Energy Racks are made: construction of a new 250MWh high volume production line is due to begin later this year.
