H2, Inc of Korea is deploying a 1.1 MW/8.8 MWh vanadium flow battery (VFB) in Spain, the largest in that country to date. The project, sponsored by the Spanish government’s energy research institute, CIUDEN, is scheduled to be completed in 16 months, with installation targeted for the second half of 2025.
The bid for a ‘long duration’ system, capable of providing maximum power for 8 hours, was won in collaboration with Spanish companies.
The battery to be deployed will be H2’s newly developed modular flow battery, EnerFLOW 640. H2 describes VFB technology as being superior to lithium-ion batteries in terms of fire safety and life expectancy, with “almost no degradation over 25 years.” VFB is also “very environmentally friendly because the vanadium electrolytes can be either recycled or reused after the project period is over.”
According to H2, the EnerFLOW 640 has “the smallest footprint ever achieved with a VFB,” thanks to use of “its latest high-performance stacks, unique three-block design and HyperBOOST technology.”
The growing demand for large-scale LDES (long-duration energy storage) across the world highlights the role VFB can play, says H2, which is a specialist in flow batteries. It employs “proprietary technology developed in-house” and has a production capacity in South Korea exceeding 330 MWh.
Through the Spanish project, H2 believes it has established a “cornerstone” for entering the European LDES sector, with “Spain serving as a gateway to the growing market.”
H2 also has a 20 MWh project in California.
The company say it is planning to build a second VFB factory in South Korea soon, “to secure gigawatt-hour scale production.”
