Energy costs are one of the largest operating expenses for commercial buildings, and HVAC systems account for 40-60% of total energy use in most buildings. Strategic upgrades can deliver significant, measurable savings.
Variable Frequency Drives (VFDs)
Installing VFDs on fans and pumps that previously ran at constant speed is often the highest-ROI upgrade available. Fan and pump power scales with the cube of speed — reducing speed by 20% reduces power consumption by nearly 50%.
Building Automation System Upgrades
Modern BAS platforms allow demand-controlled ventilation, optimal start/stop, and setback during unoccupied hours. For buildings with older pneumatic controls, a BAS upgrade can pay back in 2-4 years.
High-Efficiency Equipment Replacement
When aging equipment reaches end of life, replacing with high-efficiency alternatives (condensing boilers, variable-speed chillers, high-SEER rooftop units) captures long-term savings. Time replacements to take advantage of available utility incentives.
Envelope and Controls First
Before investing in new equipment, address controls calibration and building envelope issues. A well-maintained existing system with properly calibrated controls often outperforms a new system with poor controls and air leakage.