55A - RESO SCE STREET LIGHTS - Laserfiche WebLink

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[ jM BUILDING SOLUTIONS, Introduction The City of Santa Ana directed Alliance Building Solutions, Inc. (ABS) to perform a non -biased third -party review of a recent Streetlight Audit performed by Tanko Lighting. The purpose of the review is to provide a professional evaluation of the results of the audit, including proposed project scope, proposed cost, realized savings, and return on investment (1101). The following documents were provided to ABS for the evaluation: • SontaAno TankoAudit 052317 T1— Excel file with streetlighting inventory information • SantoAna CityAudit 052317 TI — Excel file with streetlighting inventory information • Santa Ana Streetlight Purchase Feasibility Study v2— PDF file explaining the results of the audit and proposed project financial analysis. When reviewing these reports, it is important to understand the different rate structures that the utility, Southern California Edison (SCE), has for streetlights. Detailed information regarding these rate schedules can be found through their website: www.sce.com. A brief summary of the streetlight rates is below: • LS -1 (for purchase) o SCE owned streetlights that meet the requirements to be purchased by the City • LS-1(not for purchase) • LS -3 o SCE owned streetlights that do not meet the requirements to be purchased by the City o City owned lights with an unmetered service. The cost of energy for these streetlights is based on stipulated calculations o City owned lights with a metered service. The cost of energy for these streetlights is based on actual metered energy use The Streetlight Purchase Feasibility Study compares its findings to that of SCE's findings and lists the discrepancies. ABS did not receive the report of findings from SCE and based this report solely on the Streetlight Feasibility Study provided by Tanko. It has been noted that the Streetlight Purchase Feasibility Study states that it is based on preliminary quantities and financial models that will be further refined as the project progresses. In addition, the two excel files provided to ABS had significant data gaps, resulting in assumptions based on the Feasibility Study provided and industry standards. These data gaps and resulting assumptions are explained further in the following section. 12526 High Bluff Drive Suite 345, San Diego, CA 92130 www.absenergy.com 55A-84 (858)333-4775 Contractors License # 1008135