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W A T E R E N E R G Y L I F E EaRIVERSIDE PUBLIC UTILITIES P U B L I C U T I L I T I E S Board Memorandum BOARD OF PUBLIC UTILITIES DATE: June 1, 2012 GENERAL MANAGERS REPORT ITEM NO: 14 SUBJECT: MONTHLY POWER SUPPLY REPORT—April 2012 POWER USAGE Total load requirements (including losses) during April 2012 were 187,802 MWh and 37,858 MWh of purchases from the CA1SO, of which 129,944 MWh were provided by our resources and other purchases. The retail customer load for April 2012 (154,449 MWh)was 0.5% less than the retail customer load in April 2011 (155,295 MWh). The actual peak system demand was 374 MW, compared to actual peak system demand of 339 MW last year. Energy returns were 10,515 MWh and 2,838 MWh were attributed to losses (4.26%). Green power supplied approximately 24.97%of our retail energy requirements. The City's generation resources were available during the month as follows: UNIT OPERATION I PP: IPP units 1 and 2 operated at 48.91%capacity factor for the month, PVNGS: Palo Verde units 1, 2 and 3 operated at 77,69%capacity factor for the month. SONGS: Both SONGS units 2 and 3 operated at 0%capacity factor for the month. Hoover: 100% of RVSD's entitlement was met as compared to WAPA's Master Schedule (dated 6/16111). Clearwater: Clearwater's availability was 97.01% for the month. RERC: RE RC Station (Units 1,2,3 and 4)availability was 98.65%for the month. Springs: Springs units 1, 2, 3 and 4 availability was 50%for the month. Salton Sea: The Salton Sea units operated at 84.92%capacity factor for the month. TRANSMISSION: Pacific DC: The South to North transmission line is currently derated to 975 MW(ETR 1213112012) 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 April 2011 and April 2012. AA Attachments cc: Scott C. Barber, City Manager