Other resources of thermal energy storage contain heat or cold created with warmth pumps from off-peak, low priced electric powered electricity–a follow called peak shaving; warmth from mixed warmth and electrical power vegetation; heat produced from renewable electrical energy exceeding grid demand from customers; and waste heat from industrial procedures. https://purethermal.co.uk/media-news/pure-thermal-webinar-can-icebat-cold-thermal-energy-storage-provide-an-alternative-cooling-design-option/