Sinergy Flow, a climate tech company focused on long-duration energy storage (LDES), has closed a €7 million late-seed funding round to accelerate the development and commercialization of its flow battery technology.
The funding marks a significant step in the company’s growth trajectory as it works to address one of the most pressing challenges in the global energy transition: enabling reliable, scalable storage for renewable power. As wind and solar generation continue to expand, long-duration storage is increasingly viewed as a critical enabler of grid stability and resilience.
With the new capital, Sinergy Flow plans to expand its multidisciplinary team across engineering, research and development, and industrial operations. The company will also accelerate the development and validation of its proprietary flow battery technology, advancing testing and performance milestones while preparing for broader industrial deployment. In parallel, Sinergy Flow intends to strengthen its industrialization and scale-up roadmap, positioning the business for larger-scale manufacturing and commercial partnerships.
CDP Venture Capital SGR and Exergon joined the round as new investors, bringing additional strategic and financial backing to support the company’s next phase of growth. Existing investors 360 Capital and Tech4Planet | Polo Nazionale di Trasferimento Tecnologico per la sostenibilità ambientale also participated in the financing, reinforcing their continued confidence in Sinergy Flow’s technology and long-term vision.
Flow batteries are widely recognized for their potential to deliver long-duration storage with improved safety, flexibility, and lifecycle performance compared to traditional lithium-based systems. By focusing on this segment of the energy storage market, Sinergy Flow aims to contribute to a more resilient and sustainable energy system capable of supporting high levels of renewable penetration.
The company emphasized that bold technological innovation will be essential to achieving global decarbonization goals. Through continued product development, team expansion, and collaboration with investors and ecosystem partners, Sinergy Flow is positioning itself to play a meaningful role in shaping the future of energy infrastructure.
KEY QUOTES
“We are proud to announce that Sinergy Flow has successfully closed a Late-Seed funding round of €7M.”
“This milestone marks an important step forward in our mission to accelerate the energy transition through long-duration energy storage solutions. With this new funding, we will expand our multidisciplinary team and accelerate the development and validation of our innovative flow battery technology, while strengthening our industrialization and scale-up roadmap.”
“The transition to a more resilient and sustainable energy system requires bold innovation. We are building it.”
Sinergy Flow – Company Statement
