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Wholesale Load (Vista) 247,465 253,792 <br />LVA I= IL E V E 12 G, I. I F F <br />CITY OF <br />i�IVER IDE <br />RIVERSIDE PUBLIC UTILITIES <br />PUBLIC UTILITIES <br />BOARD OF PUBLIC UTILITIES <br />GENERAL MANAGER'S REPORT <br />Board Memorandum <br />DATE: SEPTEMBER 25, 2023 <br />SUBJECT: MONTHLY POWER SUPPLY REPORT — JULY 31, 2023 <br />Monthly Power Usage: <br />The wholesale load (Vista Substation) for July was 253,792 MWh, which is an increase of 6,327 <br />MWh in comparison to the same month in the previous year. Renewable generation served <br />33.12% or 84,061 MWh of Riverside's wholesale load. Coal generation served 18.73% or 47,531 <br />MWh of the wholesale load. Nuclear energy covered 3.58% or 9,096 MWh of the wholesale load <br />in July. In July, internal natural gas generation increased production, serving 8.48% or 21,512 <br />MWh due to increased demand. Hydro generation represents 0.89% or 2,252 MWh of <br />Riverside's wholesale load. Finally, the balance of Riverside's wholesale load for July was <br />Market Transactions, which represented 35.20% or 89,340 MWh. <br />Wholesale Resource Mix - JULY 2022 vs 2023 <br />Energy <br />2022 2023 <br />MWh MWh <br />Large Hydro 2,433 2,252 <br />Natural Gas 14,000 21,512 <br />Nuclear 9,266 9,096 <br />Coal 55,611 47,531 <br />Market Transactions* 74,631 89,340 <br />Renewables 91,523 84,061 <br />2023 <br />MW h <br />2022 <br />MW h <br />■ Large Hydro • Natural Gas Nuclear • Coal • Market Transactions* • Renewables <br />253,792 MWh <br />247,465 MWh <br />0 <br />50,000 100,000 150,000 200,000 250,000 300,000 <br />MWh/Month <br />* The M arket Transaction category comprises bilateral power contracts and purchases(sales) from(to) the CA ISO. <br />