In HiHELIOS the HESS will be designed based on the shelf battery modules and components, and repurposing EV 2nd life battery modules. Supported by digital models, HiHELIOS will custom design and manufacture a HESS for 4 use-cases of
problem owners to solve a real-life hybrid energy storage challenge.
 

The HiHELIOS HESS contains an innovative BMS and physics-based and data-driven PMS, EMS and cloud platform (based in the RED and Battery passport principles) enabling multiple (fast) services.

HiHELIOS will bring long duration storage (>12 hours) within reach, against storage costs of less than €0.05/kWh/cycle by 2030, with a projected cycling life of >5,000 cycles.