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ENERGY MANAGEMENT REPORT SEPTEMBER 200$ CITY OF SAN MARCOS <br />7.0 ENERGY RETROFIT OPPORTUNITIES <br />Energy retrofit projects identified during the preliminary analysis are detailed below. Project <br />cost estimates include complete design and construction management services, <br />RETROFIT IN'T'ERIOR LIGHTING <br />Replace T-12 fluorescent lamps and magnetic ballasts with high efficiency T-8 fluorescent lamps <br />and electronic ballasts throughout the City's facilities. Typical four-foot, two-lamp magnetic <br />ballast fixtures require 80 watts, while electronic ballasts and T-8 lamps in the same fixture <br />configuration require only 50 watts. The table below indicates the facility where T-12 <br />fluorescent lamps were observed during the preliminary walkthrough. The cost and savings <br />noted below are based on preliminary observations of the facilities. Exact cost and quantities <br />can be identified through a detailed energy audit. <br />fi <br />LIGHTING RETROFIT <br /> <br /> <br />Buildiua <br />)estimated <br />Implementation Cost Estimated <br />Annual <br />Savings <br />Payback <br />(years} <br />Grant Harris Building $3,200 $700 4.6 <br />Old Fish Hatchery $600 $130 4.6 <br />Activity Center $11,700 $2,300 5.1 <br />Library $17,500 $3,500 5.0 <br />City Hall $9,500 $1,700 5.6 <br />Municipal Bldg. $9,600 $2,100 4.6 <br />Public Works Bldg. $4,500 $800 5.6 <br />Police fleadquarters $26,500 $6,600 4.0 <br />WIC Office $2,400 $400 6.0 <br />Dunbar Center _ $3,400 $600 5.7 <br /> <br />TOTAL $88,900 $18,830 4.7 <br /> <br />LOCAL GOVERNitiIEN'1 ENL.RGY A3ANAGEhtEN'C' FROGRAC41 ____ __ PAGE 14