Northern Sweden's leading hospital, Norrlands University Hospital (NUS), is home to one of the world's largest Borehole Thermal Energy Storage (BTES) systems. The hospital's buildings are linked into a thermal network, allowing for energy to be efficiently shared across the. Making the transition to a low-carbon emission future a reality requires the development of new solutions for storage and system flexibility, to guarantee continuous electric power balancing. Our vision is that the future energy system will be sustainable, and the electric power system will play a. The project aims to establish a sustainable and future-proofed energy central to support the hospital's cooling, heating, and domestic hot water needs with renewable energy.