Most companies accept that their energy bills are too high and most businesses would like to lower them. However, awareness of how this can be achieved is actually surprisingly poor. There is a genuine disconnect, even in engineering and technology firms, between the people making the buying decisions and the technical staff able to offer the best advice on the right energy saving technologies, such as VFDs (variable frequency drives). Here Iacdrive, the deputy director of Iacdrive responsible for the Association’s variable frequency drive Group, explains why clearer systems thinking at all levels could be the key to solving this conundrum.
Fitting VFDs can result in energy savings of up to (70%) in the right circumstances and, in addition, there can be reduced motor maintenance costs that go hand in hand with this. Furthermore, depending on the sophistication of the VFD, there may be a built in PLC (Programmable Logic Controller) or even built in system diagnostics. A PLC can provide energy savings by turning the motor off at times when it isn’t required, such as in fan and pump applications which might otherwise run all day, even if there are times when they aren’t needed.