In 2012, structures accounted for 74% of many of the electrical Vitality use inside America. As structures are large individuals of electrical power, there has been a concerted effort and hard work to boost their Vitality efficiency (and lower wasted Strength). ASHRAE Regular ninety.one: Power Standard for Structures Except Small-Rise https://purethermal.co.uk/media-news/november-launch-waste-heat-recycling-design-support-service-from-pure-thermal-and-oilon/