efficiency for an annual
electric cost of $3,734. A NEMA Premium ®
motor has an efficiency of 90.2% and an annual
electric cost of $3,622, which is an annual savings of $301. Over a 20 year period, this is a savings of $6,020. [This example is continuous operation at $0.10 /kWh.]. System review for maximum savings. Although the energy savings from upgrading to premium
motors is considerable, looking beyond
simple motor replacement and analyzing the system will generally provide significantly...
(read more)