Federspiel Controls is leading the way to reduced HVAC power consumption through intelligent energy management. The Federspiel Advanced Control System (FACS) uses state-of-the-art wireless mesh network technology and web services to deliver a suite of control applications such as Discharge Air Regulation Technique (DART) that has been shown to reduce HVAC energy use by as much as 3.7 kWh and 0.34 therms per square foot per year without requiring any mechanical upgrades. Federspiel Controls is working with utilities, demand response programs and third-party efficiency programs to roll out DART and other applications, including one for data center cooling control and another for demand response. The first of these systems have been installed in high-profile green buildings and will soon be installed in university and government buildings in Southern California and in high-tech buildings in Northern California.