The operations and facilities departments used monitors to collect data, which provided a foundation for understanding the facility’s overall energy usage. Ultimately, the team determined that installing variable frequency drives (VFDs) on plasma dust collectors would slow down the motor of the dust collectors to meet demand and frequency, optimizing consumption only when needed.
The analysis resulted in annual savings of over 361,000 kWh — the equivalent of $25,200 in cost savings and a 6.3 percent decrease in greenhouse gas emissions.
“We believed there were additional greenhouse gas opportunities; however, we did not have quantifiable data to support the project initially. We leveraged a variety of continuous improvement tools and were able to demonstrate the potential benefits,” explained Brad Rekus, Environment, Health & Safety (EH&S) manager.
Internal expertise, local partners and leveraging local utility incentives were key to making these investments viable energy-saving solutions and a source of immediate cost savings for the facility.