to find out what you are actually paying for your fish tank, first you need to buy a kill-a-watt meter or you can buy an appliance load tester made by Reliance at Lowes. this will determine how much wattage is being used with each appliance. this tool is really helpful because I found out that a cheap brand Odyssea pump that states is only 130w is actually using 230w and a 70w is actually using 180w
heres how to do the math for Southern California Edison
summer is $.20 for kwh and during the winter is $.19
you first need to convert watt to kwh by dividing watt/1000 to make it into kwh then you multply by how many hours and how many days in a month then times it by either winter or summer price for kwh
example a 400w light:
400w/1000=.4 .4x(8 hours a day)x(30 days in a month)x($.19 winter)=$18.24 a month
heres how to do the math for Southern California Edison
summer is $.20 for kwh and during the winter is $.19
you first need to convert watt to kwh by dividing watt/1000 to make it into kwh then you multply by how many hours and how many days in a month then times it by either winter or summer price for kwh
example a 400w light:
400w/1000=.4 .4x(8 hours a day)x(30 days in a month)x($.19 winter)=$18.24 a month
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