This session details the energy and cost savings available with the combination of submetering electrical power, temperature control and temperature sensing and demand response. Results from implementing this program in a multifamily building will be reported. The addition of demand response in recent years has made demands on wireless systems for faster and more reliable systems and growth into ever larger applications. A high level review of the history of wireless technology will be provided along with what practitioners should know about wireless technology that reduces project cost to enable more applications of submetering, temperature control and demand response.`