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Industrial Help:
Energy Costs of
Compressed Air

Compressed Air Is One of the Most
Expensive Energy Sources in Your Facility

Determine the cost of compressed air in your facility:

According to a U.S. Department of Energy study, about 10% of a facility's electricity costs are the result of generating compressed air. In some facilities this number is as high as 30%.

The efficiency of a compressed air system may be as low as 10-15%, meaning compressed air is one of the most expensive sources of energy in your facility. For example, it typically takes 7-8hp of electrical power to run an air compressor to operate a 1hp air motor (at 100psi).

Most facilities do not know their cost for producing compressed air. Thus the first step is to determine your cost of compressed air by periodically monitoring the compressor operating hours and load duty cycle. Then use the following calculator to find the cost of compressed air in your facility.

You will need to run separate calculations for the compressor when fully loaded and for when it is unloaded, and add them together.

Estimate Compressed Air Energy Costs
(Please fill out the complete form. The values you enter will be shown in parenthesis.)

Compressor shaft horsepower (bhp): (0)
(This is typically higher than the motor nameplate horsepower. Please check the equipment specification.)

Total Annual Operating hours: (0)

Load (% of full-load bhp): (0%)

% Hours operating at this level: (0%)

Motor Efficiency (%): (0%)

Average cost per kilowatt-hour for electricity: (0)

Annual Compressed Air Costs for this load level: No value calculated - valid information must be entered above.


FREE Pipe Marking Guide - Your choice of two pipe labeling guides.
The ASME/ANSI A13.1 standard for labeling pipes or IIAR standards for labeling ammonia refrigeration pipes
.

Other Calculators
Reduce energy costs by using energy efficient motors.
Energy loses due to pipe friction.



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