Coordinating building systems is quickly becoming a core facility management skill. Lighting and HVAC integration is no longer a “nice to have,” but a practical strategy facility managers can use to cut energy costs without sacrificing comfort. During his session at NFMT Remix in Orlando, Levin Nock explains how retail-time occupancy data can enable HVAC systems to relax temperature setpoints and ventilation in unoccupied spaces, unlocking savings of 20 percent or more at the whole-building level.