BOLGER CONCEPT TO PRINT -- Power of the Pump
The ME3048 uses 5.5 kW versus the vane pump's 9 kW. An engineering review was conducted, which determined that a savings of 3.5 kW resulted in a reduction of 24,700 kW hours of operation.
Based on this reduction of energy consumption, Bolger applied to Xcel Energy's Custom Solutions Program for industrial users. In the Custom Solutions Program, industrial users, such as printing companies, can apply for energy rebates for motor-driven equipment not covered under a standard rebate program. In order to receive a rebate, a company must show equipment information and operating hours.
The Custom Solutions Program is only available to Xcel Energy's business customers in the state of Minnesota. Other electrical companies may have similar programs, but they do vary from state to state.
In Bolger's case, it was with the Busch Merlin pump. The vane pump Bolger was using had a 71 percent efficiency rating at 9 kW opposed to a 90 percent efficiency rating at 5.5 kW for the ME3048. All Busch Merlin pumps use claw-type rotors instead of vanes for compression.
The non-contacting rotors run friction-free, allowing the use of a smaller motor that consumes less electricity. With less electricity being used, Bolger reduced its kW hours of operation, which significantly decreased its yearly energy bill. In addition, there is also less downtime with the ME3048 because it requires no regular, routine preventative maintenance or replacement vanes.
Xcel Energy's application process goes through a technical group that reviews each case individually and estimates how much energy is saved to determine the dollar amount of the rebate check. Projects must be pre-approved before ordering and installing equipment to qualify for rebates.
Rebates Can Vary
Due to the wide variety of companies and industries that can apply for this program, not all rebates will be the same. Rebates may be available when, for example, a plant switches from the standard to a different type of machinery that provides a higher level of efficiency and with better output as an end result.