Opening of Proposals - Olive WTP Solar GESC Proj No 124-050 - Schneider Electric

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A. Overview of M&V Plan, and Savings Calculation B. Water/Sewer Water Savings Calculations C. Key Parameter Measurement Strategy D. Parameter Estimates E. Cost Savings Calculations A. Overview of M&V Plan, and Savings Calculation Savings in this section are determined by using an "Option A: Retrofit Isolation — Key Parameter Measurement' approach as described in the International Performance Measurement & Verification Protocol (IPMVP Volume I, EVO 10000-1:2012). The remainder of this section describes the water savings calculations, key parameter measurements that will be conducted, parameters that will be estimated and those values, and how cost savings will be calculated. The water and cost savings that are determined using this one-time measurement approach will be the annual savings values used for each year of the Performance Period. B. Water/Sewer Water Savings Calculations Provided within this section is an explanation of the calculations that will be used to perform water/sewer water savings calculations for this verification method. Equations and Analysis of Water/Sewer Water Savings Savings are calculated as the difference in total billed water consumption from the baseline conditions, and the Performance Period conditions. The below equations will be used to determine savings for water and sewer water. The baseline billed water consumption is simply the water consumption billed each month across all accounts during the period of September 2016 to August 2017. The billed water consumption for the Performance Period is a calculated value to allow for a fair comparison to the baseline conditions. To arrive at the Performance Period billed water consumption, the first step is to compute the actual baseline water consumption from the billed baseline water consumption and baseline water meter accuracy. A fair comparison of performance requires the Performance Period actual consumption to be equal to this calculated actual baseline water consumption. The billed consumption for the Performance Period is calculated similarly to the method used to determine the actual baseline consumption but instead uses Performance Period water meter accuracy data. The formulas below define this process. Equation 1 — Billed Baseline Water Consumption 12 H„ =IA H Where, Hm = Billed annual baseline water consumption for account m B; = Billed water consumption for calendar month i Equation 2 — Actual Baseline Water Consumption 12 k I'. C,,, = B; x _ i=1 (jvj Aj Where, Cm = Actual annual baseline water consumption for account m Pj = Percent of water consumption for flow rate category j Aj = Baseline accuracy of water meter in flow category j Energy Solutions Proprietary and Confidential v102811 24