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System Condition Update

System Condition Update. Spring Operations Review Forum April 13, 2012 1:00 – 2:00 p.m. To participate in the call please dial: (877) 336-1839 When prompted, enter access code: 1687421. Hydro Operations Update.

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System Condition Update

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  1. System Condition Update Spring Operations Review Forum April 13, 2012 1:00 – 2:00 p.m. To participate in the call please dial: (877) 336-1839 When prompted, enter access code: 1687421

  2. Hydro Operations Update The Federal Columbia River Power System is being operated for system wide flood control objectives. • All reservoirs are drafting to meet their April 30 flood control objective. • River Forecast Center’s Water Supply Forecast is 113.7 million acre feet issued on April 12.

  3. Actions to manage overgeneration • Since 4/7 we have successfully acquired over 25,000 MWh of load under the Mid-C Spill Exchange agreement. • Positioning Banks Lake to have the maximum amount of pump load available. • Have moved non-essential generator and transmission maintenance outages out of May and June. • Coordinated spill on Willamette projects. • CGS has been reduced to 85% during periods when it was helpful to minimize spill.

  4. Weather and Streamflow

  5. Balancing Authority Load and Total Wind, Hydro, and Thermal Generation

  6. Transmission Updates • COI N>S • 2950 MW: 3/30 to 4/23 due to CAISO Round Mountain-Table Mountain 1 500kV. • PDCI N>S • 2990 MW : At rated capacity next seven days except as noted above. • 0 MW: 4/14 and 4/15 HE 07 only due to LADWP testing. • NI S>N • 1950 MW: Prescheduled forecast at or near capacity next seven days.

  7. Chart available on BPA’s Web site at: http://transmission.bpa.gov/business/operations/intertie/interties/ac_dc.xls

  8. Chart available on BPA’s Web site at: http://transmission.bpa.gov/business/operations/intertie/interties/bcinter.xls

  9. Contact Information • To discuss within month commercial transactions, please contact Robert Johnson at (503) 230-3183, rcjohnson@bpa.gov. • To discuss prompt month and forward transactions, please contact Alex Spain at (503) 230-5780 (ajspain@bpa.gov) or Mark Miller at (503) 230-5780 (memiller@bpa.gov). • For additional information on Oversupply, please contact: Project Manager: Nita Burbank - (503) 230-3935, nmburbank@bpa.gov Public Engagement: Maryam Asgharian - (503) 230-4413, maasgharian@bpa.gov • Overgeneration Web site:http://www.bpa.gov/corporate/AgencyTopics/ColumbiaRiverHighWaterMgmnt/

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