05-06-11 BPU RPT 21 - Laserfiche WebLink

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N ,, i n r y RIVERSIDE PUBLIC UTILITIES pUaLtc urtLcrtE 5 Board Memorandum BOARD OF PUBLIC UTILITIES DATE: May 6, 2011 DIRECTOR'S REPORT ITEM NO: 21 SUBJECT: MONTHLY POWER SUPPLY REPORT—March 2011 POWER USAGE Total load requirements during March 2011 were 205,707 MWh, of which 199,376 MWh were provided by our resources (including 1,693 MWh from RERC Unit 3 and 1,273 MWh from RERC Unit 4), and 6,331 MWh from purchases from the CAISO. The retail customer load for March 2011 (146,102 MWh) was 3.7% lower than the retail customer load in March 2010 (151,754 MWh). The actual peak system demand was 331 MW, compared to actual peak system demand of 312 MW last year. Energy returns were 24,483 MWh and 3,286 MWh were attributed to fosses (3.07%). Green power supplied approximately 12.87% 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 64% capacity factor for the month. PVNGS: Palo Verde units 1, 2 and 3 operated at 83% capacity factor for the month. SONGS: SONGS unit 2 & 3 operated at 100% capacity factor respectively for the month. Hoover: 105% of RVSD's entitlement was met for the month. Clearwater; Clearwater's availability was 85% for the month. RERC: RERC Units 1 & 2 availability was 91% for the month. RERC Units 3 & 4 are in the process of being commissioned and are in testing mode. Springs: Springs units 1, 2, 3 and 4 availability was 97% for the month. Salton Sea: The Salton Sea units operated at 53% capacity factor for the month. TRANSMISSION: Pacific DC: The South to North transmission line is currently derated to 975 MW (ETR 1013112012) and the North to South transmission line is operational at 2,990 MW. Attached are the charts of daily peaks and the graphical comparison of demand and energy supplied from each resource for the months of March 2010 and March 2011. AA Attachments cc: Bradley J. Hudson, City Manager