1. Turn off compressors when not needed.
A 100 hp compressor can cost $75,000 per year in energy costs (based on 8,760 hours at 0.10 per kWh).
2. Identify and fix leaks.
Leaks waste a lot of money. Even fixing a few major leaks helps the bottom line. See box at right.
3. Eliminate inappropriate use of compressed air.
Using compressed air for blow off is not only wasteful, it can be dangerous as well. Did you know that using air over 30 psi for blow-off is actually an OSHA violation?
4. Apply proper controls to multiple compressor systems.
Master system controllers maintain a stable system pressure and ensure that only the needed compressor units are brought online and that they are operating at peak efficiency.
5. Ensure piping and storage are adequately sized.
Many systems lack adequate storage. Kaeser recommends both a "wet" and "dry" tank. Undersized piping will increase pressure drop in the system.