1. A pump station has three constant speed pumps with a field measure horsepower of the pumps of 73(pump #1), 78(pump #2) and 71 (pump #3). By changing to new, more efficient pumps, the horsepower can be reduced to 65 horsepower per pump and can maintain the same flow rate.

The total cost of conversion: $64,000

Power costs $0.63 cents/KwH

Pump station Average flow 10.5 mgd

_____________Hour Meter Reading__________

Beginning of year End of year

Pump 1 110,356 115,293

Pump 2 24,224 25,031

Pump 3 38,331 39,622

Given the information above, determine the annual power saving in dollars, if new pumps are installed:

1. $21,491.01 per year
2. $27,135.62 Per year
3. 38,419.59 Per year
4. $24,205.35 Per year