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March 22, 2016 Page 7 of 11 <br />fixtures, reducing both the equipment cost and again staff time to perform this task. Currently <br />there are different types of lighting fixture types used at NBCC. This includes LED fixtures <br />that were installed as part of the locker room/restroom renovation project, fluorescent tubes <br />and CFL's as well as metal halide fixtures that provide exterior lighting at NBCC. There are <br />approximately 2,000 fixtures and lamps that would be retrofitted to LED. The cost to undertake <br />the LED Lighting Retrofit is $270,856. <br />Assistant Parks and Recreation Director Hicks stated the building envelope is defined as the physical <br />separator between the interior and exterior of the building. This is an important aspect of <br />NBCC as it creates a barrier that resists air, water, heat, light and noise from transferring <br />between the interior and exterior of the building. It will help reduce energy consumption by not <br />allowing warm or cool air to pass between the barrier and require the HVAC system to <br />condition the air. These upgrades would include repairing roof/wall joint leaks, adding or <br />replacing insulation, adding weather stripping and repairing window and door seals. <br />Undertaking these repairs will help minimize uncontrolled air infiltration and exfiltration. The <br />cost to make the suggested repairs to the building envelope is $18,303. <br />Assistant Parks and Recreation Director Hicks indicated solar power is the last option that has been <br />researched. Solar power would reduce the energy NBCC requires Xcel Energy to provide to <br />operate the facility. This would require solar panels to be installed on the roof or daylighting to <br />be added to the rooftop of NBCC. There are two different ways solar could be installed at <br />NBCC. The first is through the Made in Minnesota Solar Incentive Program (MiM). An <br />application has already been submitted for this as the deadline was February 28. The City <br />could certainly decline the award if it is determined solar power is not an option Council would <br />like to pursue. The MiM program has a cap of a 40 kW system. The second option would be to <br />install a larger solar field on the NBCC roof. To receive the best rebates and incentives, it may <br />be best to partner with a private owner to install the solar system with the City leasing the <br />system from the private owner. Because this option requires additional study it is not included <br />as an option at this point, but it is planned to be discussed at a future Council Work Session. <br />Staff recommends approving the three options presented in Trane's proposal which includes: <br />Option #1 <br />Replace RTU's and install DDC <br />Option #IA <br />Install Genesis Air Cleaners <br />Option #2 <br />LED lighting Retrofit <br />Option #3 <br />Building Envelope Repairs <br />Councilmember Burg thanked staff for the thorough report. She asked if the Genesis Air Cleaners could be <br />added at a later date. Charlie Holt, Trane representative, explained the current proposal has the Genesis Air <br />Cleaners being factory installed in the units. He stated they could be retrofitted at a later date, but this would <br />be at a much higher cost. <br />Councilmember Burg questioned if the two air cleaners would be adequate for the Community Center. Mr. <br />Holt stated the units were site specific and would meet the unique needs of the Community Center. <br />Councilmember Jacobsen inquired if the new units would come with a warranty. Mr. Holt reported the new <br />units would come with a five-year warranty and would come with cottonwood screens. <br />Councilmember Bauman did not believe the payback information was helpful given the fact the payback <br />period was after the expected lifespan of the units. She did not support the proposed LED improvements <br />given the high expense. She understood the Community Center was in need of new HVAC units, but did not <br />believe this included all new LED lighting. She encouraged the Council to be cognizant of the tax dollars that <br />were being spent on this building. <br />Mayor Johnson commented the Council held two very long conversations r egaiding the Community Center <br />and the LED lighting. She stated unfortunately, Councilmember Bauman was unable to attend both of these <br />meetings. She supported the LED lighting given the fact it would reduce energy costs in the long run and was <br />