Other sources of thermal energy storage consist of heat or cold developed with warmth pumps from off-peak, low cost electrical electrical power–a observe called peak shaving; heat from mixed heat and electricity vegetation; warmth generated from renewable electrical energy exceeding grid demand from customers; and waste heat from industrial processes. https://purethermal.co.uk/media-news/pure-thermal-webinar-can-icebat-cold-thermal-energy-storage-provide-an-alternative-cooling-design-option/