HiHELIOS aims to deliver a technology readiness level (TRL) 7 modular, scalable, circular-by-design and safe Hybrid Energy Storage System (HESS) that combines High-Power storage capabilities of Lithium Iron Phosphate (LFP) battery or supercapacitors, with High-Energy storage capabilities of second-life lithium nickel manganese cobalt oxides (NMC) batteries.

To achieve this, HiHELIOS will adapt the modular, flexible and scalable HESS architecture developed in the EU project SEABAT for marine applications at TRL 5-6, to grid applications and EV charging support.

DAFNI will be supporting the use case activities in Tilos (Livadia settlement & municipal aggregator) which include the installation and testing of the scalable HiHELIOS HESS as well as the procurement of the necessary equipment.  Additionally, DAFNI network will be responsible for the communication and dissemination activities of HiHELIOS.

• storage services for supporting grid-connected microgrids and islanded grids
• use of second life batteries will demonstrate their potential in reducing the environmental impacts of energy storage
• 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.
• Increased penetration of RES in Tilos as a non-interconnected island

• COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (CEA)
• SINTEF ENERGI AS
• FLANDERS MAKE
• VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK N.V. (VITO)
• UNO-X E-MOBILITY NORGE AS
• DAFNI – Network of Sustainable Greek Islands
• WATT4EVER
• REVOLTA
• RHOE
• UNIVERZA V LJUBLJANI (UL)
• ENERGY POOL DEVELOPPEMENT SAS
• JIMMA UNIVERSITY