Improving Boiler System Efficiency: Variable Frequency Drives

For motors that operate above 7-10 hp, a variable frequency drive (VFD) can help achieve significant energy savings.

VFDs automatically throttle the motor when they detect lower loads, reducing the amount of time the motor needs to be running at full speed. This attains better control and less energy consummation, translating to increased overall boiler system efficiency.

Additionally, SCE and PG&E offer a rebate of $75-$100 per hp towards the purchase of VFDs.