Have you ever wondered how much of your electrical bill goes to run your air compressor? Read on and we'll show you how to find out.

Before we see how much electricity costs, we should to understand how it’s measured. When you buy gas they charge you by the gallon. When you buy electricity they charge you by the kilowatt-hour (KWH). When you use 1000 watts for 1 hour - that unit of energy is called a kilowatt-hour. The kilowatt hour is most commonly known as a billing unit for energy delivered to consumers by electric utilities.

Once you know how much it is costing you in electrical energy…what can you do to REDUCE those costs and save money?

Take these first 3 steps to figure your Electrical Cost per Kilowatt Hour (KWH)

1. Find your electrical utility bill for the facility where your air compressor operates and find your total amount due on your utility bill.

2. From you utility bill, find the total kilowatts used

3. Use this FORMULA:

Example:

Total Dollar Amount Due Ex: $300.00

Total KWH Used Ex: 2500

Amount Due Divided By Total KWH Used

$300.00 Due ÷ 2500 KWH Used = 0.12 Per KWH

4. Determine your

Motor Data Plate HP (EX: 25HP) X 110% = (27.5 HP)

5. Figure your

# Hours running per day X # days per week X # weeks per year running = The total time the equipment runs in a year.

6. Find your

MOTOR EFFICIENCY can be found on the motor data plate as a percentage. (Example=.90 %) It is the ratio of input power minus the output power.

7. Use this FORMULA:

Using our EXAMPLES given…you can see how to figure your annual electrical costs:

27.5 hp x .746* x 2600 hours x $.12 ÷ .90 = $7111.87 per year to run your air compressor

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