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Job No. 2669.01 Water Systems Alternative Energy Feasibility Study <br />Foreword <br />The City of Santa Ana Public Works Agency, Water Resources Division, hired Newcomb Anderson McCormick <br />(NAM), a Willdan company, to evaluate the potential to offset some of their electricity purchases with <br />renewable energy. The Agency uses electricity from Southern California Edison (SCE) at about 30 sites around <br />the city for pumping out of wells and pressurizing the distribution system. NAM evaluated past records of <br />pumping operations and electricity use; visited the prospective sites; and reviewed the 2017 Master Water Plan <br />from the Agency. <br />NAM also evaluated the potential to generate electricity from solar power by covering the water storage tanks <br />with solar collectors and by recovering head from the water delivered directly from the Metropolitan Water <br />District. This evaluation assumes that the hydro turbine at SA -1 would continue to generate renewable <br />electricity at its current reduced capacity as a baseline. The savings in this report are the marginal additional <br />savings that would be generated by a new turbine. <br />NAM created cost estimates for constructing these projects and calculated the potential monetary savings by <br />utilizing the new proposed SCE rate schedules, as opposed to the current rates. In addition, a life cycle cost <br />analysis for each option was performed. <br />NAM would like to thank the assistance in performing this project that was provided by Water Resources <br />Manager, Nabil Saba and Assistant Engineer II, Brian Ige. <br />CITY OF SANTA ANA 19H-5 Newcomb I Anderson I McCormick <br />