Most of the savings will come from a review of the system’s utility bills, which showed the village qualified for a discounted energy rate. The $0.02/kWh discount applies to all village operations and is estimated to save nearly $60,000 alone.
“Superintendent Jason Opferbeck provided our staff with copies of all the necessary utility bills and operational reports, as well as detailed information regarding the operation of the wastewater system,” Herman said.
The energy audit also revealed upgrades to the wastewater system that could provide additional energy and money savings. Herman recommended installing Variable Frequency Drives on the system’s lift stations and effluent pumps. VFDs allow pumps, motors and other equipment to operate at optimum speeds, saving energy and reducing mechanical stress.
The recommended upgrades are expected to save the wastewater utility over 300,000 kWh and $44,000 every year.