Other resources of thermal energy storage contain heat or cold made with heat pumps from off-peak, low cost electric electric power–a practice referred to as peak shaving; heat from merged warmth and electric power crops; warmth manufactured from renewable electrical energy exceeding grid desire; and squander 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/