Annual station kWh, air volume or flow, operating hours and production schedule.
Compressed air audit checklist
Measure pressure, control, leakage and end use before adding the savings.
Use this checklist to build a reviewable compressed-air baseline and prevent pressure, leakage and control improvements from claiming the same energy twice.
Field data
Minimum readings for a credible screen.
Rated power and flow, load/unload hours, VSD load, IGV position, blow-off and sequencer settings.
Header pressure, critical end-use pressure, pressure drop, leak survey, dryer purge and inappropriate uses.
Calculate station kW per delivered flow at representative load, not nameplate efficiency alone.
Confirm minimum end-use pressure and treat reduced leakage or unregulated demand as overlap, not extra saving.
Use measured unloaded power and hours; fixed percentages hide control behavior.
Separate measured leak flow, purge air, drains and pressure drop by load owner.
Report avoided thermal utility separately from compressor electricity savings.