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ENERGY,1r~ASTE MANAGEMENT ASSESSMENT 1: Exec~~i~e S~mrna~ ~ 1 s Elk River City Hall was assessed for energy and waste management efficiency by a team from the. Minnesota Retired Engineers Technical Assistance Program (RETAP); on July 26, 2011. The RETAP team was Larry Motl and Norm Ledeboer. We sincerely thank Rebecca Haug for arranging he assessment, providing information and Dennis Anderson, Gary Lore, Steven Pomeroy and Vance Zehringer for providing information for the assessment and a tour of the facility. Specific recommendations are listed below in Table 1. Additional discussion and back-up information-and calculations are listed in Section 4: Potential Savings. TaEaEe 1: Recommendations Potenti al Savin s A nnual Recommendation KwH Kw Fuel Water Waste 's Tons *Kbtu Gallons Yds CO2 1.Consider adding more insulation to the 10,900 3 520,000 0 0 $5,180 39 roof/ceiling to increase the "R° value to the recommendated 38 from an estimated 20 now, to reduce both heating and cooling costs. 2.Consider improving the efficiency of the HVAC 2,480 2 532,000 0 0 4,470 34 system by evaluation and possible replacement of equipment and recommissioning. 3. Consider replacing the 17 metal halide lamps 7,740 0 0 0 0 $740 5 in the parking/security lights with pulse start ballasts to reduce the power used from 460 watt to 355 watts each. 4.Add a VendingMiser device to the soft drink 650 0 0 0 0 $62 0.6 machine. 5.Consider replacing the "U" Tube, 18 watt CFLs 423 0 0 0 0 $41 0.3 with magnetic ballasts in the hallway, with 13 watt CFLs with electronic ballasts. 6.Add insulation blankets to the two water 0 0 4,500 0 0 $36 0 heaters. Total: 22,193 5 ' 1,056,500 ; ': $10,529 I 78.9 *1 Therm = 100 Kbtu _ _ This analysis and potential savings estimates are based on utility bill data provided for building structure, HVAC, lighting, water and waste management and operating hours. Actual future savings will depend on weather, utility billing rates, site or operational changes, and on recommendations implemented. 2: FaCf~ltl@S The Elk River City Ha11 building is constructed of concrete, brick, steel, wood, typical building construction with good quality double pane windows, with aluminum frames. Roof insulation is estimated to be about "R" 22 with walls about 18. Lighting in the office areas is predominately T-5 fluorescent lamps with -.electronic ballasts; in .good quality. fixtures. The.lower level utility room has T-8 fluorescent lighting.. There are thirteen ceiling hung light fixtures in the hallway/entry area with 18 watt, CFL lamps which have magnetic ballasts. HVAC system is seven modular boilers which produce hot water for heating and roof top chillers for cooling. Security and parking lights consist of seventeen, 400 watt metal halide light