09-17-10 BPU RPT 21 - Laserfiche WebLink

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RIVERSIDE PUBLIC UTILITIES { , , Board Memorandum BOARD OF PUBLIC UTILITIES DATE: September 17, 2010 DIRECTOR'S REPORT ITEM NO: 21 SUBJECT: MONTHLY POWER SUPPLY REPORT—July 2010 POWER USAGE Total energy requirements during July 2010 were 243,553 MWh, of which 183,579 MWh were attributed to retail customer load and the remainder being sales to wholesale parties and system losses. The retail load for July 2010 was 5.6% lower than the retail energy load in July 2009 (194,402 MWh). The actual peak system demand was 538 MW, compared to actual peak system demand of 540 MW last year. Sales to wholesale parties, losses and energy retums represented 32.7% of the total energy requirement as compared to 6.7% for last year. Sales to the ISO accounted for 41,791 MWh. Energy returns were 13,120 MWh and 5,063 MWh were attributed to losses (3.53%). Green power supplied approximately 17.7%of our retail energy requirements. The City's generation resources were available during the month as follows: UNIT OPERATION IPP: IPP units 1 and 2 operated at 86% capacity factor for the month. PVNGS: Palo Verde units 1, 2 and 3 operated at 99%capacity factor for the month. SONGS: SONGS unit 2 & 3 operated at 100%capacity factor for the month. Hoover. 10010 of RVSD's entitlement was met for the month. Springs: Springs units 1, 2, 3 and 4 availability was 74%for the month. RERC: RERC Units 1 & 2 availability was 91% for the month. Salton Sea: The Salton Sea units operated at 86% capacity factor for the month. TRANSMISSION: Pacific DC: The South to North line is de-rated due to repairs to damage caused by the Station Fire through 0813112010. The North to South line is fully operational. Attached are the charts of daily peaks and the graphical comparison of demand and energy supplied from each resource for the months of July 2009 and July 2010. AA Attachments cc: Bradley J. Hudson, City Manager