Sumitomo seeks to bring redox flow systems to Europe, MENA with CMI partnership

LinkedIn
Twitter
Reddit
Facebook
Email
Sumitomo Electric redox flow cell stack, which received UL product certification in 2015. Image: Sumitomo Electric Industries.

The developer of one of the world’s biggest battery energy storage systems (BESS) installed globally so far will be taking its vanadium redox flow systems into the international market, beginning with a pilot in Belgium.

Japan’s Sumitomo Electric Industries, which put a 60MWh vanadium redox flow system into operation to assist the integration of renewables on the northern Japanese island of Hokkaido, has formed a strategic partnership with Belgium-headquartered CMI Group to market the former’s Redox Battery in international markets.

The agreement is expected to give Sumitomo better access to regions including Europe and the Middle East and North Africa (MENA). The Japanese company described CMI Group as a “European partner capable of installing their (Sumitomo’s) Redox Battery and integrating it into the balance of system”.

CMI has been established in power generation – beginning with steam engines – for about 200 years, running the CMI Energy subsidiary and now also moving in to batteries with the creation of CMI Energy Storage. The company runs engineering procurement and construction (EPC) activities in energy storage and will now include Sumitomo’s flow technology in its offerings to market.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

A pilot project will be established at CMI’s headquarters in Seraing, Belgium, where 2MWp of solar PV will be paired with about 3MWh of “various types of batteries”, scheduled to begin commercial operation in 2018. The project will trial a number of different use cases for energy storage, including self-consumption of onsite generated PV power, grid stabilisation and arbitrage.

As we have seen over the past few months at Energy-Storage.News, competition in the flow battery space, as a handful of makers race to commercialise and gain visibility in the market, is becoming fierce. Various exploration deals for raw materials and sales partnerships have been established, while in China, government support is expected to sire several flow battery systems in the range of hundreds of megawatt-hours of energy storage per system.

Read Next

July 16, 2026
There’s been a flurry of project completions across Europe this past week, with projects completed in Germany, Estonia, Belgium, Denmark and Bulgaria by RheinEnergie/SMA, BSP, BStor, European Energy and Sunotec respectively, totalling nearly 700MWh of capacity.
July 16, 2026
Australian transmission operator Transgrid has opened a pathway for 900MW of grid-forming inverter-equipped battery storage to contribute to New South Wales’ minimum system strength requirements.
July 14, 2026
Owner-operator Giga Storage has secured a €450 million (US$512 million) financing package for its 700MW/2,800MWh Green Turtle BESS project in Belgium.
Sponsored
July 14, 2026
Huawei FusionSolar’s new Smart String Grid-Forming ESS Platform, LUTERRA, is born from technology breakthroughs designed to drive customer success.
Premium
July 13, 2026
Energy-Storage.news Premium catches up with Giovanni Damato, US president of organic flow battery company CMBlu Energy about the company’s recent activity.