Rimac Energy, the energy storage arm of electric vehicle (EV) technology company Rimac, has completed commissioning for its flagship SineStack, a grid-connected 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)-based modular BESS solution with an energy storage capacity of 790 kWh and a power of 400 kVa. The company headquartered in Croatia calls the product the “most technically advanced BESS in the world”.
The system stands out for its distributed power conversion system (PCS) architecture, which distributes the inverter capacity among all 18 modules in the system. This architecture is accompanied by adaptive software, which, according to Rimac, enables multi-scale models to calculate each cell’s unique internal parameters and dynamically adjust energy conversion operations to maximize energy extraction, balance temperatures and extend the life of the system.
As such, the company claims that SineStack will not experience any degradation for the first two years from 2025.
Rimac Energy Managing Director Wasim Sarwar Dilov said: “In keeping with our Rimac DNA, our product takes a monumental technological leap forward, enabling unparalleled levels of integration, capabilities and performance. I am very much looking forward to scaling up the production and deployment of SineStack across Europe.”
In March this year, Rimac opened a UK innovation and manufacturing facility in Oxfordshire, which would serve as a hub for technological innovation. The 1,850m2 The factory is where the first SineStack units are manufactured. At launch, the first units were expected to go to Croatian renewable energy developer and operator ENNA.
The company will later launch a production facility at its headquarters in Croatia, near Zagreb, to produce SineStack at scale. The company aims to be one of Europe’s largest BESS manufacturers by 2030, with an annual production capacity of 300 MWh from 2025, rising to 1 GWh a year later and 10 GWh-plus further down the line.
