Other sources of thermal energy storage include things like heat or cold created with warmth pumps from off-peak, low cost electrical ability–a follow called peak shaving; warmth from put together heat and electrical power crops; heat made from renewable electrical energy exceeding grid demand; and waste warmth from industrial procedures. https://purethermal.co.uk/media-news/pure-thermal-webinar-can-icebat-cold-thermal-energy-storage-provide-an-alternative-cooling-design-option/