Kitt Butler is the director of motors and drives and David Berkowitz is the director of OEM test services at Advanced Energy, 909 Capability Drive, Suite 2100, Raleigh, NC 27606, 919-857-9000.
Impact on Pump Users
Electric Motors (EISA)
Electric motors are the single largest electric technology deployed in terms of energy use, which is why the DOE creates Minimum Efficiency Performance Standards (MEPS) in regulations like EISA. Electric motors convert an estimated 40 to 60 percent of all electricity generated in the world into mechanical energy. Electric energy used by motors in industrial and commercial facilities can be 70 percent of the total used. Countries around the world are following the United States' lead by creating MEPS programs.
The good news for end users at all levels is these regulations will result in reduced energy consumption if applied properly. End users have no direct compliance requirements with the DOE like motor manufacturers and OEMs. They do not need to concern themselves with equipment design issues related to motor changes nor do they need to submit compliance paperwork to the DOE.
The end users' best approach to realizing savings is a Motor Management Plan. Organizations succeeding with active motor management programs have dedicated staff consisting of management, engineers, maintenance and purchasing professionals focused on specific policies and goals. These organizations claim 5 to 8 percent reductions in their total electric energy use with increased process reliability as a result of their motor management programs.
Many resources are available to assist end users with realizing cost savings. At a minimum, end users should have a motor purchase specification that includes buying NEMA Premium® motors and a motor repair specification. With no regulation for efficiency associated with motor repair, working with a motor service center that has a quality assurance program is critical.
Another resource for motor management information is the Motor Decisions Matter (MDM) campaign, administered by the Consortium for Energy Efficiency, which includes motor manufacturers, utilities, the DOE and energy efficiency advocates. Utility organizations across the country offer demand side management programs that include financial incentives to upgrade motors and drives. A list of organizations with rebate programs can be found at the MDM.
Part Two of this article will address the Small Electric Motor laws being introduced later this year. The DOE estimates the Small Electric Motor laws will save 2.2 quads of cumulative energy during the 30 year period from 2015-2045.
Motor reliability testing
Dynamomter testing (efficiency)
Motor build inspection analysis