06-10-2019 BPU RPT 10 - Laserfiche WebLink

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W A T E R E N E R G Y T I F F RIVERSIDE PUBLIC UTILITIES id& Board Memorandum P U B L I C U T I L I T I E S BOARD OF PUBLIC UTILITIES DATE: JUNE 10, 2019 ITEM NO: 10 SUBJECT: LA COLINA SWITCHGEAR 3 AND 4 REPLACEMENT PROJECT - WORK ORDER NUMBER 1927285 IN THE AMOUNT OF $480,000 ISSUE: Approve Work Order Number 1927285 for the La Colina switchgear 3 and 4 replacement project in the amount of $480,000. RECOMMENDATION: That the Board of Public Utilities approve Work Order No. 1927285 for La Colina switchgear 3 and 4 replacement project in the amount of $480,000. BACKGROUND: Electrical substations (substations) are the joining of facilities between the distribution and transmission systems. Substations house critical equipment and infrastructure such as substation power transformers, switchgears, power circuit breakers, and protective relaying equipment. All this equipment within the substation boundaries is vital for the reliable and optimum operation of the electric grid. Substation equipment must be upgraded periodically to meet increasing electric power demand, maintain safety, and improve system reliability. Several of the substation equipment in the Riverside Public Utilities (RPU) system have exceeded, or are reaching, the end of their design life. Replacement of failed equipment such as switchgears is very expensive and lengthy due to the design requirements and the complexity of the manufacturing process. The failure of a single unit can result in a significant impact on the electric system's reliability and the safety of employees and the public.