In 2012, properties accounted for seventy four% of each of the electrical Power use within The us. As buildings are significant people of electrical energy, there has been a concerted exertion to further improve their Vitality efficiency (and cut down wasted Electricity). ASHRAE Normal ninety.1: Electrical power Normal for Properties https://purethermal.co.uk/media-news/november-launch-waste-heat-recycling-design-support-service-from-pure-thermal-and-oilon/