FINANCIAL VIABILITY OF LIQUID AIR ENERGY STORAGE APPLIED TO COLD STORAGE WAREHOUSES

摘要

Cold storage warehouses (CSWs) are large energy consumers and account for a significant portion of thernglobal energy demand. CSWs are ideally suited for solar renewable energy, as they generally have largernflat roofs and their peak demand can coincide with the sun shining. A challenge with fluctuatingrnrenewables is their variability,which means generation may not coincide with demand. Liquid air energyrnstorage (LAES) is a technology that stores electrical energy as a cryogenic liquid. This paper presents twornstrategies for using LAES at CSWs, firstly to shift the import of energy from peak to off-peak tariffs andrnsecondly to store on site renewable energy when there is a surplus and use when not. The financial viabilityrnof these strategies is then investigated taking into account the capital cost of the LAES and the money thatrncan be saved due to the differences in tariffs at different times.