Method: Leak-related power demand is estimated as: Power Waste = Leak Flow × Compressor Specific Power Annual electricity loss is: Energy Loss = Power Waste × Operating Hours Annual leak cost is: Leak Cost = Energy Loss × Electricity Tariff Annual leaked air volume is: Air Lost = Leak Flow × 60 × Operating Hours with leak flow converted internally to m³/min. This method assumes that the entered specific power reasonably represents the incremental electrical energy required to supply the leaked air. Real compressed-air systems may not respond linearly to reduced leakage. Fixed-speed load/unload compressors, sequencing controls, storage volume, pressure setpoints and minimum unloaded power can all affect actual savings after leaks are repaired. For energy-audit use, measured leak flow and measured compressor-system specific power over the same operating condition provide the most defensible estimate.