Kemiwatt, a pioneering French company developing sustainable organic flow batteries for stationary energy storage, has successfully completed a capital increase exceeding €5 million. The funding round welcomes two new strategic investors: Stolt Ventures, the corporate venture capital fund of Stolt-Nielsen—a global leader in liquid logistics—and Impact Océan Capital (IOC), an investment fund dedicated to maritime innovation and sustainability in Europe managed by GO Capital.
Historical investors, including Pierre-Yves Divet and Cadeis, have also chosen to reinvest, demonstrating continued confidence in Kemiwatt’s vision and growth trajectory. The funding round remains open, providing opportunities for additional investors to participate in the company’s momentum and contribute to its next phase of development.
Founded in Brittany, Kemiwatt designs and manufactures next-generation organic flow batteries that use safe, abundant, and recyclable electrolytes. The company’s technology delivers long-duration, large-scale energy storage solutions to support renewable integration and industrial applications.
The investment from Stolt Ventures marks a significant milestone for Kemiwatt, as Stolt-Nielsen operates one of the world’s largest fleets of chemical tankers and bulk liquid terminals. Impact Océan Capital’s participation further strengthens the initiative by combining financial backing with a mission to accelerate innovation and decarbonisation within the maritime and port ecosystem. Through IOC’s extensive network of maritime stakeholders, Kemiwatt will gain valuable access to strategic industry partnerships.
The newly secured funding will enable Kemiwatt to scale its commercial operations and expand internationally within the stationary storage market, particularly targeting tank storage operators. By leveraging existing port and terminal infrastructure, the company aims to provide cost-competitive, sustainable energy storage solutions that support the decarbonisation of logistics and industrial value chains.
“We are delighted to welcome Stolt Ventures and Impact Océan Capital as strategic partners. Their industrial expertise and financial support will be instrumental in accelerating Kemiwatt’s commercial rollout and positioning our organic flow batteries as a key solution for long-duration storage in Europe and beyond,” said Guillaume Chazalet, CEO of Kemiwatt.
With this latest financing, Kemiwatt strengthens its ambition to become a European leader in sustainable, large-scale energy storage—helping industries and regions achieve their climate objectives and enhance energy security.
For more information visit www.kemiwatt.com
