Although energy-savings programs have been around for a while, the need for energy-savings data continues to grow as energy costs continue to rise. The North America Motion Controls Division of Danfoss has been working to develop a means to supply accurate data on energy consumption of AC drives and motors.
The software program - Danfoss Graham HVAC Energy Analysis for VLT Series Drives - estimates electrical energy consumption and a simple payback for fan and pump applications that use an AC drive and motor. The software allows the user to select a conventional system and compare it against an AC drive system.