Other sources of thermal energy storage involve heat or cold generated with warmth pumps from off-peak, low price electric powered energy–a exercise referred to as peak shaving; heat from put together warmth and electricity crops; heat developed from renewable electrical energy exceeding grid demand; 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/