Unfortunately, many irrgiation systems are inefficient which adds to costs. Even a 10% decrease in an irrigation system's efficiency may cost thousands of extra dollars spent needlessly each year. Sometimes over 50% of the water delivered through the systems does not benefit the crop or your bottom line.
Many water districts have implemented, or are planning to implement, restrictions on the amount of water that can be used for irrigation. Now, more than ever, irrigation pump efficiency needs to be addressed.
While energy prices and rainfall are beyond anyone's control, irrigation operating costs can be manged better by investing energy efficient technologies and practices.
Many irrigators have found that making energy efficient improvements to their irrgiation systems not only saves energy and water but also leads to added productivity by saving time and maintenance costs.
Questions commonly asked...
Q. Is my pump too old?
A. The average life of a pump before it needs refurbishment or replacement is 18 years.
Q. Could improving my system's efficiency reduce the amount of water I need to pump?
A. Yes. Saving water means saving money!
Q. Would I be able to convert my delivery system to a lower pressure?
A. 20-25 psi pivots are not uncommon.
Q. What is the benefit of using a variable frequency drive (VFD) instead of a soft start?
A. A soft start is designed to protect the motor from hammering at start up, but it does not control the constant speed of the pump like a VFD. VFDs are used when energy savings is a goal.
Q. Could improperly using a chose valve cause my irrigation system to use tens of thousand of kilowatt hours of each year unneccessarily?
A. Yes. Surprisingly, many pumps operate at 75-80 psi and use a choke valve to supply pivots designed for 15-25 psi.