Latest news

Link to article. Expert Interview – March 23, 2026 No cooling systems, no bulky containers, and no lithium: Dutch startup Moonwatt is rethinking battery energy storage systems (BESS) for hybrid solar power plants. Its sodium-ion systems operate without active cooling and can be distributed directly across solar fields, unlocking new efficiencies in design, cost, and […]

Link to article. We hear from Netherlands-based ‘distributed hybridisation’ sodium-ion BESS startup Moonwatt, as it announces its first project 18 months after being founded and around a year after executives introduced its tech and strategy to Energy-Storage.news. The firm announced in January that it would deploy its first project in 2026 at the Cleantech Park Arnhem in […]

Link to article. Amsterdam-based Moonwatt has developed a new type of battery storage system based on sodium-ion NFPP chemistry, purpose-built for seamless solar hybridization. The system integrates battery enclosures with hybrid string inverters, enabling efficient DC-coupled solar-plus-storage integration. The company gained attention in March 2025 when it raised $8.3 million in seed funding to accelerate growth. […]

Amsterdam, Netherlands — January 28th 2026 — Solar deployments are booming, but stand-alone solar increasingly struggles with grid congestion and price cannibalization. The next generation of solar plants must natively integrate storage to deliver flexibility and resilience. Moonwatt has conceived and engineered a Battery Energy Storage System (BESS) from the ground up, purpose-built for seamless solar […]

Techleap NL and France Deeptech welcome Moonwatt into their deep tech communities. Techleap NL and France Deeptech have welcomed Moonwatt into their respective national innovation communities, recognizing the company’s mission to accelerate next-generation sodium-ion energy storage across Europe. Moonwatt joined both programs to strengthen its scaling efforts, gain access to best-in-class mentors, and collaborate with […]

Link to article. Netherlands-based startup Moonwatt plans to commercialise an energy storage solution for hybridisation with solar using two big technological deviations from today’s industry standard – we hear more from the firm’s CEO and COO. CEO Zukui Hu, CCO Valentin Rota and CTO Guillaume Mancini met nine years ago while working at Tesla. All […]

Link to article. The drive to decarbonize our economies through electrification and clean energy continues to generate momentum around battery technologies, as storage has a key role to play in enabling the green transition. While renewables are clean sources of energy compared to burning fossil fuels, their power output isn’t always consistent. In the case […]

Amsterdam, March 2nd, 2025: Moonwatt – the energy storage startup founded by seasoned professionals with a track record at global leaders like Tesla, EDF, Siemens, Scatec, and Freyr Battery – has raised €8 million to unlock the true, 24/7 power of solar with its disruptive sodium-ion battery system. Co-led by daphni and LEA Partners, Founders […]

Moonwatt was founded in September 2024 with a clear mission: to make solar power competitive around the clock and around the world. We are developing the next generation of highly competitive Energy Storage Systems powered by advanced sodium-ion battery technology. Our hardware and software solutions are purpose-built for co-location with solar plants, enabling them to […]