Rimac Energy’s SineStack system uses advanced lithium iron phosphate (LFP) cells and a distributed inverter (“AC battery”) architecture for precise control, redundancy, and 50% lower energy losses than existing solutions. Integrated power conversion, liquid thermal management, and state-of-health monitoring algorithms ensure near-silent operation, optimal space utilization, and consistent capacity. An in-house EMS platform offers automated operations and advanced analytics. Production is planned at the Rimac Campus in Croatia, with pilot systems tested and full-scale manufacturing targeted for 2025 at over 10 GWh annual capacity.
The flagship SineStack BESS delivers 92% round-trip efficiency, a 12 000-cycle lifetime, distributed inverter modules, liquid thermal management for near-silent operation, and integrated EMS for performance and health monitoring.
In 2024, SineStack was deployed in Colchester, United Kingdom, with a zero capacity fade guarantee for two years from 2025. Partnerships include BMW Group for high-voltage EV battery solutions and ENNA for strategic energy storage projects in Croatia.
Rimac Energy is supported by SoftBank Vision Fund 2, Goldman Sachs Asset Management, Porsche, and InvestIndustrial. Mate Rimac is the largest shareholder, with Hyundai Motor Group as a strategic investor.