RheEnergise will deploy a 250kW/1MWh (4 hours) demonstrator at a mine, close to Plymouth, Devon within the next 18 months. The company’s High-Density Hydro storage system is low-cost, energy efficient and environmentally benign. Rather than using water, RheEnergise has developed a fluid, which is 2½ times denser than water, and which can provide 2½ times the power and 2½ times the energy when compared to a conventional low-density hydro-power system that operate in the Scottish Highlands, Wales and across Europe. The contract is from BEIS’s Longer Duration Energy Storage (LODES) Demonstration Programme (Stream 2) which is a part of the UK Government’s £1 billion Net Zero Innovation Portfolio (NZIP) that aims to accelerate the commercialisation of low-carbon technologies and systems. Earlier this year, RheEnergise secured a £150,000 grant from Phase 1 of the LODES…