Cold Energy: This highlights the main target on storing prospective energy in the form of noticeably very low temperatures. It's the counterpart to the superior-temperature energy saved in heat batteries. It became clear that using PCMs was the answer to pursue, mainly because of the massive thermal energy storage capability https://purethermal.co.uk/media-news/pure-thermal-webinar-can-icebat-cold-thermal-energy-storage-provide-an-alternative-cooling-design-option/