Compressed air is typically one of the most expensive utilities in an industrial facility. As a result,
potential savings opportunities are aggressively sought out and identified. Once identified, projected
energy savings must be calculated in order to justify the cost of implementing the savings opportunity. It
is important to calculate projected energy and cost savings as accurately as possible. Unfortunately,
savings are frequently overestimated because the methods used to estimate savings neglect to consider
important factors such as compressor control and type, storage, and multiple compressor operation. There
are three important reasons why it is worth investing time and effort in reducing compressed air costs: it
will save energy and money by identifying and eliminating waste; it will improve the reliability and
performance of the compressed air system; it will reduce environmental impact through reduced
electricity consumption and consequent lower carbon dioxide (CO2) emissions.