The cost to run electric auxiliaries should not be overlooked when considering the total cost to run a facility. The cost of auxiliaries can be found be determining the kilowatt - hours used and your cost per kilowatt - hour. Here is a quick "rule of thumb":

One horsepower (HP) of electricity is equal to 0.746 kilowatt-hours. A 1 HP motor running at full load for 24 hours would use 17.90 kilowatt-hours of electricity.

Now that you are able to determine your electric consumption for your auxiliaries, you can use that information to decide if additional energy efficiency upgrades are needed. Every little bit counts!