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ENERGY <br />E1 � ERGY <br />Your Community Energy Partner <br />Mr. Brian Olson <br />City of Ramsey <br />7550 Sunwood Dr NW <br />Ramsey MN 5303-6140 <br />Dear Brian, <br />14601 Ramsey Boulevard <br />Ramsey, Minnesota 55303 <br />763-323-2600 <br />Fax: 763-506-9541 <br />1-800-642-1672 <br />www.connexusenergy.com <br />info@connexusenergy.com <br />March 3, 2011 <br />I have reviewed the two lighting proposals that you have received for the Public Works <br />Buildings lighting retrofits. The following are observations regarding these proposals* <br />Current light levels with existing lighting systems <br />Measured Recommended (IES) <br />Main Public Works Garage 10-20fc Parking/Driving 10-50fc, Repair, 100fc <br />Vehicle Storage Building 8-10fc Storage 5fc, Traffic Lane 10fc <br />Sign Utility Building 20-27fc Parking - Entrance 10-50fc <br />Fixture Light Output <br />Existing - 400 Watt Metal Halide <br />AID Electric - 6-Lamp T8 <br />Ready Watt Electric 6-LED-Tube <br />Notes: <br />17,250 Lumens (de -rated 50% light loss) <br />17,700 Lumens (2950 x 6) <br />6,000 Lumens (1000 x 6) <br />• The T8 fixtures will reduce the wattage by 232 watts per fixture from the 400W <br />MH fixtures <br />• The rebate amounts on the AID proposal are accurate. <br />• The rebate for an LED retrofit would be a custom rebate based on 350 per watt <br />up to a maximum 50% wattage reduction. (13,434 x .35 = $4,701.90) <br />• The Titan LED Website shows a recommended replacement for 400W MH as <br />105w to 180W LED. The Proposal from Ready Watt is for a 90W replacement <br />(6 x 15w) See attached spec sheet <br />• The areas are not currently over lit so a reduction in light levels would be below <br />recommended IES guidelines. <br />SintQe <br />Leo Offer <br />Utility Services Representative <br />