Battery Business & Development Forum
March 31-April 01, 2026 | Frankfurt am Main, Germany | Language: EnglishPetawatt Sponsor
Maxxen, is one of Europe’s leading brands in energy storage, powered by high-tech and carbon-neutral production infrastructure. With Swiss engineering and a European vision, we don’t just store energy — we lead its transformation. Through our innovative systems, we make energy measurable, traceable, and sustainable. With AI-powered solutions and second-life applications, we contribute to the circular energy economy. Our strategic location at the crossroads of three continents, combined with our agile team and fast service, enables us to deliver energy anywhere and stay close to our customers at all times.
We are Maxxen. We’re not just part of the energy transition — we are the transformation itself.
Terawatt Sponsor
green flexibility develops, builds, and operates large-scale battery storage systems that drive a more stable and flexible energy transition in Germany. As a full-service partner, we transform promising sites into high-impact BESS projects and operate them long term.
We combine deep technical expertise with innovative concepts that move the market forward — such as REGIOlink, our approach to regionally supportive storage operation, or elevate, our partnership model for advancing external BESS-projects to construction readiness.
Terawatt Sponsor
Sigenergy is a global energy technology company specializing in solar, energy storage, and EV charging solutions. With a world-class R&D team, the company develops innovative products that combine simplicity in deployment, uncompromising safety, and an exceptional user experience. By integrating artificial intelligence with advanced energy storage technology, Sigenergy delivers next-generation smart energy solutions that empower the transition towards a cleaner, more sustainable future.



