What energy savings can I expect from retrofitting my existing rooftop units with advanced controllers

Energy savings can be highly variable, and are dependent upon many factors, including: age of the unit, existing condition of the mechanical equipment, and the presence of any existing automation controls, operational sequences and weather. The Program Readiness Report: Advanced Rooftop Unit Controllers published by the Consortium for Energy Efficiency (CEE) found energy savings range from 20-40% of total RTU energy consumption.