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W A T E R E N E R G Y L I F E <br />RIVERSIDE PUBLIC UTILITIES <br />• ' Board Memorandum <br />P U B L I C U T I L I T I E S <br />BOARD OF PUBLIC UTILITIES <br />DATE: DECEMBER 14, 2020 <br />ITEM NO: 15 <br />SUBJECT: ENERGY STORAGE SYSTEM AND PHOTOVOLTAIC INTEGRATION STUDY — <br />WORK ORDER NO. 2028672 FOR A TOTAL CAPITAL EXPENDITURE IN THE <br />AMOUNT OF $120,000 <br />ISSUE: <br />Consider approval of Work Order No. 2028672 for a total capital expenditure of $120,000 for an <br />Energy Storage System and Photovoltaic Integration Study. <br />RECOMMENDATION: <br />That the Board of Public Utilities approve Work Order No. 2028672 in the amount of $120,000 for <br />an Energy Storage System and Photovoltaic Integration Study. <br />BACKGROUND: <br />The Tequesquite Landfill Solar Photovoltaic (PV) Project was completed in 2015. It is a 7.5 <br />megawatt (MW) solar power farm that is operated by Sun Power, LLC on top of the <br />decommissioned Tequesquite landfill, near Rubidoux Avenue and the Santa Ana River Trail. The <br />project demonstrated a unique and innovative approach that Riverside used to leverage local land <br />resources into renewable power for the benefit of the community. The solar power is purchased <br />by Riverside Public Utilities (RPU) and is directly fed into the local electrical grid and is enough to <br />power about 1,600 homes. <br />A Battery Energy Storage System (BESS) uses rechargeable batteries to store energy from solar <br />production, or other energy sources. A BESS uses advanced technology to perform rapid <br />functions that are critical to electric grid operations, including when to discharge the energy into <br />the grid from the battery system. Adding an energy storage system that is integrated with the <br />existing Tequesquite Landfill Solar PV facility will modernize part of the existing RPU distribution <br />network into a resilient electric grid. Diversity of energy sources is a benefit to sustainable power <br />provision and grid security. Over the longer term, the integrated system has the potential to <br />improve both reliability and power quality on the electric distribution system. <br />This joint project between Energy Delivery and Power Resources achieves several potential <br />benefits that can be realized from this type of integrated system: <br />Participation in the wholesale energy market <br />