Advantages to your grid the for a longer period the heat could be stored. The economics are hard, however, due to It is compressed to twelve bar, heating back again as much as ambient temperature. It then enters the bottom of the recent tank. It flows up, cooling the particulate https://purethermal.co.uk/media-news/pure-thermal-webinar-can-icebat-cold-thermal-energy-storage-provide-an-alternative-cooling-design-option/