Cold Energy: This highlights the main focus on storing prospective energy in the shape of appreciably lower temperatures. It's the counterpart towards the higher-temperature energy saved in heat batteries. The charging technique is undoubtedly an air liquefier, which works by using electrical energy to draw air in the surrounding surroundings, https://purethermal.co.uk/media-news/pure-thermal-webinar-can-icebat-cold-thermal-energy-storage-provide-an-alternative-cooling-design-option/