The Kent Water Reclamation Facility aeration tanks previously operated with one of three 350 hp centrifugal blowers. Brewer-Garrett installed one 200 hp turbo blower, along with additional dissolved oxygen sensors, to meet the current needs of the facility.
A lighting retrofit was implemented in all facilities, and lighting controls were installed. We retrofit 32W T8 fluorescent lamps with 1st generation electronic ballasts using 25W T8 lamps with 2nd generation high efficiency electronic ballasts. Our team retrofit T12 fluorescent lamps with electromagnetic ballasts using 25W T8 lamps with 2nd generation high efficiency electronic ballasts. Brewer-Garrett installed a straightforward one-for-one replacement of the existing 400-watt metal halide fixtures with a 4 lamp high bay T5HO fixture.
Automation system improvements included local building automation upgrades, integrated with a semiannual review of set points that would coincide with the ongoing energy audit.
Brewer-Garrett installed load-managing devices on vending machines using passive infrared occupancy sensors to turn off the display lights when the surrounding area is unoccupied.