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WATER I ENERGY I LIF E <br />RIVERSIDE PUBLIC UTILITIES <br />CITY OF <br />Board Memorandum <br />PUBLIC UTILITIES oa d Mem o an du <br />BOARD OF PUBLIC UTILITIES DATE: JULY 10, 2017 <br />GENERAL MANAGERS REPORT <br />ITEM NO: 20 <br />SUBJECT: MONTHLY POWER SUPPLY REPORT — May 2017 <br />Power Usage: <br />Wholesale Load (Vista): — 171,807 MWH (Chart 1) <br />Peak Demand: — 412 MW of which 323 MW came from RVSD available resources (Chart 2) <br />RVSD Energy Mix (Chart 1): <br />Resource MWH <br />a) Nuclear 8,592 <br />b) Coal 50,839 <br />c) Large Hydroelectric 3,122 <br />d) Natural Gas 6,811 <br />e) Renewables 81,990 <br />f) Inter SC Trades - <br />g) Green Inter SC Trades - <br />h) CAISO Purchases 20,452 <br />Total: 171,807 <br />Total Green Power Supply — 81,990 MWH which yields 47.72% of the Total Wholesale Load Requirement <br />Resource Availability: <br />Nuclear: Palo Verde units 1, 2 and 3 operated at 88.83% capacity factor for the month. <br />Coal: IPP units 1 and 2 operated at 49.88% capacity factor for the month. <br />Large Hydro: Hoover, RVSD's capacity entitlement was 22 MW, with energy entitlement of 3,122 MWH. <br />Natural Gas: Clearwater's availability was 99.13% for the month. <br />RERC's (Units 1, 2, 3 and 4) availability was 99.66% for the month. <br />Springs's (Units 1, 2, 3 and 4) availability was 100.00% for the month. <br />Renewable: Salton Sea units operated at 99.66% capacity factor for the month <br />Vulcan unit operated at 85.78% capacity factor for the month. <br />Wintec operated at 46.38% capacity factor. <br />WKN operated at 39.51 % capacity factor. <br />Transwind operated at 20.10% capacity factor. <br />Kingbird Solar operated at 42.74% capacity factor. <br />Tequesquite Solar operated at 26.72% capacity factor. <br />AP North Lake Solar operated at 31.56% capacity factor. <br />Camelot Solar2 operated at 42.22% capacity factor. <br />Bigsky Solarl X operated at 42.65% capacity factor. <br />Bigsky Solar3 operated at 37.76% capacity factor. <br />Bigsky Solar7 operated at 37.35% capacity factor. <br />The attached graphical <br />comparisons represents RPU's May: <br />Chart 1: <br />Total Energy Requirements/Resource Mix <br />Chart 2: <br />Peak Hour Total Capacity <br />Chart 3: <br />Retail Customer Load <br />Chart 4: <br />Daily Peak Load and Temperature Comparisons <br />Chart 5: <br />Monthly Peak Load and Temperature <br />