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Protocol (IPMVP Volume I, EVO 10000-1:2012). The remainder of this section describes the energy <br />savings calculations, parameter measurements that will be conducted, and how cost savings will be <br />calculated. The energy and cost savings will be determined using this approach for each year of the <br />Performance Period. <br />B. Energy Savings Calculations <br />Provided within this section is an explanation of the calculations that will be used to perform energy <br />savings calculations for this verification method. <br />The production, solar irradiance, and snow cover will be measured beginning in the Performance Period. <br />The relationship between those three variables will be determined and a performance curve created. <br />Savings are calculated as the production normalized to a typical year's irradiance and snow cover profile. <br />Normal solar irradiance is based on the TMY2 weather data for South Bend, IN. This approach verifies <br />the performance characteristics of the PV system but does not take accountability for excess/insufficient <br />solar opportunity. <br />PV savings will be calculated each year of the Performance Period at the end of the guarantee year. <br />During the construction period, PV savings will be reported as actual production rather than as <br />normalized production. <br />ESCO reserves the right to make non -routine adjustments in the case of inverter failure and shading <br />resulting from structures or vegetation constructed after the Date of Commencement. <br />C. Parameter Measurement Strategy <br />This section outlines the measurements that will be conducted to determine the measured values in the <br />equations provided above in Paragraph B. For this PV project, the parameters that will be measured are <br />the production from the solar panels and the available solar irradiance and the actual snow cover. <br />Production will be measured with the installed production meter, and solar irradiance will be measured <br />with the installed local solar irradiance meter at intervals no longer than one hour. Snow cover will be <br />measured at a local weather station. <br />D. Cost Savings Calculations <br />This section provides the methods and equations used to determine the cost savings associated with this <br />particular methodology. Normalized production will be converted to cost using a marginal utility rate of <br />$.083523 per kWh, with 2.8% annual escalation. In months where more energy is produced than is <br />needed by the city, excess production will roll forward to the next month until the end of the calendar year. <br />Energy Solutions Proprietary and Confidential <br />002811 27 <br />