Pond Boss Forums GENERAL QUESTIONS Help Adding Well Water to Pond

George, here are a couple of useful conversions for calculating energy cost.

1 KWH = 1.33 HP
1 HP = 0.75 KWH

You must first determine how much you pay per KWH.

The basic calcuation for cost is:

Horsepower X 0.75 X number of hours of operation X price per KWH

Example: Pump = 1 HP, 24 hour operation, Price = $0.10/KWH.
Daily operation cost = 1 X 0.75 X 24 X 0.10 = $1.80
Hourly operation cost = $1.80 / 24 = $.075

It looks like you were right on esshup.

Keep in mind that the price you end up paying is based on actual power usage as a result of amp draw. This is referred to as brake horsepower which is typically lower than the nameplate horsepower on your pump unless your running at the upper end of the pumps abilities. So this calculation provides a general idea of the cost.

I hope that helps.