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If your system does not always run at the same speed, neither should your motors, and adding flexibility to your production process can make a big difference in operational efficiency.
 
A variable speed drive connected to your electric motor regulates the motor speed and torque of the motor-driven equipment to the process requirement, resulting in reduced energy consumption. Rebates are available for variable speed drives controlling 1 to 75 horsepower motors driving fans or centrifugal pumps for process applications. Variable speed drives that are integral to the equipment are not eligible for rebates separate from the equipment rebate.
 
Benefits
  • Reduced energy costs
  • Improved plant efficiency and load factor
  • Precise control of process flow and pressure
  • Bypass capability when required
Qualifications
  • You must be a commercial or industrial business customer with facilities located in MidAmerican Energy’s Illinois service territory.
  • MidAmerican Energy must provide the primary electricity and/or natural gas to the equipment at the facility for which the rebate is being paid.
  • Please review all Qualifications and Conditions.
Rebate requirements and how to apply
Refer to the variable speed drives application for all rebate requirements.
 
To apply, complete the variable speed drives application in full and return it to MidAmerican Energy along with product specifications, itemized invoices for materials and labor and installation date. Include a manufacturer’s specification sheet with efficiency ratings.
 
Important note before purchasing or installing a VSD
Modern variable speed drives contain integrated protective circuitry that can shut down the drive when it senses the input voltage is too low or too high, loss of a phase (e.g., unbalance) or the motor is overloaded. The typical input voltage tolerance is +/- 10 percent, but some manufacturers offer drives with wider input voltage ranges. Some variable speed drive applications may require an inverter duty-rated motor, particularly if the motor will operate at very low speeds; a motor’s internal cooling fan is less effective at low speeds. Work with your vendor to purchase a drive that is compatible with the power quality and motors in your facility.
 
 
 
Nonresidential Equipment Custom Systems
If specific equipment you intend to purchase and install is not listed, it may qualify under Nonresidential Equipment Custom Systems; however, custom projects must be preapproved by MidAmerican Energy prior to purchase and installation of equipment or systems. 
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