South Korean company H2 Inc has contracted to deploy a 1.1MW/8.8MWh vanadium flow battery (VFB) system in Spain. It will be the largest VFB project in the county. The project, commissioned by the Spanish government’s energy research institute, CIUDEN, a Public Foundation for energy research and an arm of Spain’s ministry for Ecological Transition and Demographic Challenge, aims to deploy a long-duration solution that provides maximum power for 8 hours. H2 successfully won the bid in collaboration with local Spanish companies.
H2 will supply the entire battery system, which is the core of the project. The battery used will be H2’s newly developed modular flow battery, EnerFLOW 640. For many applications VFB is a more competitive solution than lithium-ion batteries in terms of fire safety and life expectancy, with almost no degradation over 25 years. In addition, it is very environmentally friendly because the vanadium electrolytes can be either recycled or reused after the project period is over. More specifically, in the case of EnerFLOW 640, this VFB is said to have the smallest footprint ever achieved with a VFB, thanks to H2’s latest high-performance stacks, three-block design and ‘HyperBOOST’ technology. The project is scheduled to be completed in a total of 16 months, with installation targeted for the second half of 2025.
Spain is aiming to employ renewable energy for over 80% of its total energy generation by 2030 as part of its net-zero target. To ensure a stable power supply, Spain has set a target to install 20 GW of energy storage. H2 specialises in flow batteries, with proprietary technology developed in-house and a production capacity exceeding 330 MWh in South Korea. It is is planning to build a second VFB factory in South Korea to secure gigawatt-hour scale production.
