When we choose a backyard pond pump, one of the important things to know is how much it will cost to operate. Most backyard pond pumps run 24 hours daily, 7 days weekly, so the electricity costs can mount up fast. The pump can easily cost $30.00 a month to operate and that cost needs to be factored into your decision on what pump to buy. Operation costs are relatively easy to calculate, but be warned that these costs are for illustration only. Many things can affect your costs, like tube diameter, head height and how many hours per year you use your pump.
Things You'll Need
- Your local kilowatt per hour costs (usually abbreviated KWH)
- A watt meter to know how many watts your pump uses OR
- Use this formula: The pump label usually tells you the amps it uses. If the label only gives the number of amps and not the number of watts, then just multiply the amps by 120 to get the number of watts. (Amps x Volts = Watts, and most U.S. electricity is 120 volts.)
Find Watts for Your Pump
Either use the watt meter to find out watts or use the formula above.
Multiply the watts your pump uses per hour times the number of hours per year you will run it. If it will be all the time, use 8,760 hours per year.
To get kilowatts, divide by 1000.
Now multiply by your cost per KWH (kilowatt-hour). Look on your utility bill. It should tell you what you pay per KWH. Now you have your yearly cost to operate. To find monthly costs, divide by 12.
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