Commercial Energy Services Agricultural Irrigation Incentive

The Agricultural Irrigation Incentive program is now a part of our Commercial Energy Services !   Click here for more information about Commercial Energy Services and application process.  To apply for an incentive for your project, use the existing building or new construction application. Choose the application most appropriate for your project.

The Benefits of Improving Irrigation Energy Use

Friction Loss

By using a large diameter pipe on your mainline you can reduce energy costs. By installing a 12" versus a 10" mainline, the payback in reduced energy, or horsepower, takes place in roughly 3 years. Based on 1,200 gpm for a 5 month season at .05 per kWh, ¼ mile mainline).

FACT: It will take 3hp less to push 1,200 gpm in a 12" pipe versus a 10" pipe. 12" pipe cost approximately $1.00 per foot more than a 10" pipe (1,320' x $1.00 = $1,320.00) 3hp x .75 x .05 x 24 hrs x 30 days = $81.00 x 5 month season = $405.00 savings per yr. ($1,320 ÷ by $405 = 3.26 year return).

Water Application

Convert from top impact sprinklers on high-pressure systems to a low-pressure system.

FACT: Low-pressure systems use drop tubes. Studies reveal that 1% more water gets to the ground for every foot of drop tube used.

Motor Efficiencies

Select a high or premium efficiency unit over a standard efficiency unit when replacing or installing a motor.
FACT: You can save from 3% to 5% per month on electric consumption.

Improving Pump Efficiencies

Install variable speed drives (VSD) on existing motors.

FACT: A VSD will decrease motor speed and produce enough pressure to run the pump for the required gpm.
Adjust or replace worn impellers or bowls.

FACT: Worn impellers or bowls will create higher energy consumption. Reduce total dynamic head by changing impeller diameter or motor speed, or using multiple pumps.

FACT: Using multiple pumps and properly sizing impeller diameters and motor speed will reduce energy consumption. Match your pump and motor combination (pumping plant) to your requirements.

FACT: The single greatest contributor to pump inefficiency is over-sizing.

Wells

Proper well construction will improve overall pumping efficiency.

FACT: An existing well is pumping 2,000 gpm from 400.' Proper well construction could have provided the same 2,000 gpm from 300.' This is a savings of 62.5 horsepower. 62.5 hp x .75 x .05 x 24 hrs x 30 days x 5 months = $8,437.50 savings per season. Clean well casings will improve water quantity.

FACT: If your well is more than 20 years old and production has decreased, in certain conditions, cleaning perforations by "brush and swab" can bring water quantity back to the original gpm.