Irrigation Pumping Costs Twin Valleys Public Power District Irrigation Pumping Costs “” USE TAB KEY TO ENTER DATA IN BLACK BOXES, THEN CLICK UPDATE. Horsepower * Choose horsepower from chart at right and enter number in box. Horsepower 7.5 60 Annual Hours of Operation Enter number of hours in box 10 75 15 100 20 125 Annual Operating Costs: 25 150 One-day Two-day control Three-day 30 200 No Control + Sunday control No Sunday + Sunday control Total Control 40 250 50 Results are based on manufacturers data for a typical 3-phase hollow shaft, standard efficient, electric motor operating under full load conditions and nominal voltage with no losses between the electric meter and the motor using Twin Valleys Public Power District Irrigation Rates. Your results may vary. For applications over 250 HP, contact Twin Valleys PPD. * Total nameplate horsepower for billing purposes is determined by adding all motor horsepower together, including center pivot drive motors, center pivot end gun booster pump motors, etc. If measured horsepower exceeds nameplate horsepower, measured horsepower will be used.