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Life IS On I Schneider <br />OEIectric <br />Option A Lighting: Methodology and Savings Summary <br />The following section was included in an earlier report. It is reprinted here for consistency and to provide a full <br />picture of Year 1 savings. <br />Schneider Electric employed the "Option A— Partially Measured Retrofit Isolation" method as described in the <br />International Performance Measurement and Verification Protocol (IPMVP) when determining the energy <br />savings resulting from the lighting retrofits. <br />The Option A method required the lighting fixture power consumption for both pre -retrofit fixtures and post - <br />retrofit fixtures to be measured. Measurements of the fixture types listed in Schedule D of the Energy Services <br />Contract were taken once during the installation period and will not be repeated. There was one pre -retrofit <br />and one post -retrofit fixture type that weren't measured. The expected wattages for those and other non - <br />measured fixture types were used in the calculations. All measurements can be found in Appendix A. <br />Once taken, the measurements were combined with the estimated burn hours detailed in Schedule D to <br />determine the amount of energy saved. The equations and methods used are also described in Schedule D. <br />Appendix A shows all of the components and calculations used to compute the savings and the total calculated <br />energy and cost savings per retrofit in the rightmost columns. <br />The cost savings achieved were calculated using energy rates listed in Schedule D. The table below shows a <br />summary of the total fixture retrofit consumption and dollar savings by building. <br />Police Station <br />48,817 <br />11 <br />$6,149 <br />City Hall <br />9,133 <br />4 <br />$1,529 <br />Transit Building <br />19,233 <br />7 <br />$2,951 <br />Park Admin <br />14,809 <br />6 <br />$2,272 <br />East Plant <br />635 <br />1 <br />$221 <br />Fire Station 1 <br />25,721 <br />5 <br />$3,126 <br />Fire Station 2 <br />6,673 <br />1 <br />$1,024 <br />City <br />183,170 <br />0 <br />$8,604 <br />Total <br />308,191 <br />34 <br />$25, 877 <br />