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To calculate your operating costs per year multiply the number of amps your motor uses per hour, by the voltage, by the number of hours you run it per year (if you run it 24/7 then use 8,760 hours per year), then divide by 1,000 to convert it to kilowatts, then multiply by your cost per kilowatt-hour.

 Amps x 115 volts x 8,760/1,000 x $/kilowatt-hr = $ operating costs per year

Shown below is a table for the operating costs savings per year:

Dollars saved per year running your pump 24/7

Amps saved per hour

$/kilowatt-hr 2.5 amps 5 amps 7.5 amps 10 amps 12.5 amps 15 amps 17.5 amps 20 amps
$0.050  $       125  $     250  $     375  $     500  $     625  $     750  $     875  $   1,000
$0.075  $       188  $     375  $     563  $     750  $     938  $   1,125  $   1,313  $   1,500
$0.100  $       250  $     500  $     750  $   1,000  $   1,250  $   1,500  $   1,750  $   2,000
$0.125  $       313  $     625  $     938  $   1,250  $   1,563  $   1,875  $   2,188  $   2,500
$0.150  $       375  $     750  $   1,125  $   1,500  $   1,875  $   2,250  $   2,625  $   3,000
$0.175  $       438  $     875  $   1,313  $   1,750  $   2,188  $   2,625  $   3,063  $   3,500
$0.200  $       500  $   1,000  $   1,500  $   2,000  $   2,500  $   3,000  $   3,500  $   4,000
$0.225  $       563  $   1,125  $   1,688  $   2,250  $   2,813  $   3,375  $   3,938  $   4,500
$0.250  $       625  $   1,250  $   1,875  $   2,500  $   3,125  $   3,750  $   4,375  $   5,000
$0.275  $       688  $   1,375  $   2,063  $   2,750  $   3,438  $   4,125  $   4,813  $   5,500
$0.300  $       750  $   1,500  $   2,250  $   3,000  $   3,750  $   4,500  $   5,250  $   6,000
$0.400  $     1,000  $   2,000  $   3,000  $   4,000  $   5,000  $   6,000  $   7,000  $   8,000
$0.500  $     1,250  $   2,500  $   3,750  $   5,000  $   6,250  $   7,500  $   8,750  $ 10,000
$0.600  $     1,500  $   3,000  $   4,500  $   6,000  $   7,500  $   9,000  $ 10,500  $ 12,000

 

 

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