Rimac Energy, the energy storage arm of electric vehicle (EV) technology company Rimac, has completed commissioning for its flagship SineStack, a grid-interfacing battery energy storage system (BESS).
The first unit is now ready for delivery to a site in Colchester. SineStack is a lithium iron phosphate (LFP) cell-based modular BESS solution with an energy storage capacity of 790kWh and an output of 400kVa . The Croatian-headquartered company has called the product the “most technically advanced BESS in the world”.
The system is notable for its distributed power conversion system (PCS) architecture that spreads the inverter capability across all 18 modules in the system. This architecture pairs with adaptive software, which, according to Rimac, allows multi-scale models to calculate the unique internal parameters of every cell and dynamically adjust power conversion operations to maximise energy extraction, balance temperatures, and enhance the lifetime of the system.
As such, the company claims SineStack will suffer zero degradation for the first two years of operation from 2025.
Rimac Energy’s director, Wasim Sarwar Dilov, said: “In keeping with our Rimac DNA, our product takes a monumental technological leap forward, enabling unparalleled levels of integration, capability and performance. I’m very much looking forward to scaling up production and deployment of SineStack across Europe.”
In March of this year, Rimac opened a UK innovation and manufacturing facility in Oxfordshire to serve as a hub for technological innovation. The 1,850m2 facility is where the first SineStack units are being manufactured. At the time of its launch, the first units were expected to go to Croatian renewable energy developer and operator ENNA.
The company will later launch a manufacturing facility at its Croatia headquarters near Zagreb to manufacture SineStack at-scale. It aims to be one of Europe’s largest BESS manufacturers by 2030, pitching for an annual production capacity of 300MWh starting in 2025, rising to 1GWh a year later and 10GWh-plus further down the line.
