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SECTION 2: METHODOLOGY USED TO CALCULATE PROJECT SAVINGS <br />The methodology used for projecting savings resulting from the implementation of the Project is <br />summarized in the following equation: <br />Where: <br />Annual Savings = Energy Savings <br />Annual Savings: The total annual savings associated with implementation of this Project. <br />This is the savings figure that will be used for comparison to the Guaranteed Savings as part <br />of the Guarantee Reconciliation. <br />Energy Savings: The total Energy Savings associated with reduction in energy consumption <br />as a result of implementation of this Project. <br />ENERGY SAVINGS <br />Table G3: Summary of Annual Savings <br />*Based on historical hourly data, approximately 64% of solar production is expected to be used on- <br />site <br />**A safety factor is applied to the expected savings to account for uncertainties and potential <br />variances in system performance over time. These uncertainties can arise from factors such as <br />weather variability, equipment degradation, shading, soiling, and operational changes at the facility. <br />Ameresco includes the impact of these uncertainties in the energy calculations; however, actual <br />conditions can vary beyond the expected ranges. By applying a conservative adjustment to the <br />expected savings, the safety factor helps ensure that the guaranteed savings are realistically achievable <br />under a range of conditions. This approach reduces the risk of underperformance and enhances the <br />credibility and financial reliability of the project. <br />Confidential & Proprietary Information of Ameresco, Inc. <br />Page 37 of 56 <br />