In 2012, structures accounted for seventy four% of all of the electrical Electricity use in the United States. As structures are substantial shoppers of electricity, There have been a concerted energy to further improve their Power efficiency (and decrease wasted Electricity). ASHRAE Conventional ninety.1: Vitality Regular for Structures Except Minimal-Rise https://purethermal.co.uk/media-news/november-launch-waste-heat-recycling-design-support-service-from-pure-thermal-and-oilon/