1. 1 Bonneville Power Administration

2. 2 BPA markets power from 31 federally owned dams, one non-federal nuclear plant, and wind energy generation facilities BPA accounts for about 45% of the electricity consumed in the region Over 80% of the energy BPA sells is from hydroelectric generation 60% of the energy consumed in the Pacific NW is from hydroelectric generation

3. 3 Federal Columbia River Power System River system developed & operated for: Flood control Navigation Irrigation Municipal & industrial water Recreation Fish & wildlife Power production

4. 4 The Columbia River 1214 miles long Drainage area: 258,500 square miles Annual runoff: 134 million acre feet (maf) Canada has 15% of basin area, but provides 30% of the annual runoff Average flow at The Dalles dam: 178,000 cfs

5. 5 Climatological zones range from high deserts to mountain ranges Elevation ranges from 300ft to over 10,000ft Impacted by Pacific Ocean as well as continental influences The Columbia River Basin

6. 6 Willamette River at Salem

7. 7 Columbia River at The Dalles

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12. 12 Operational Considerations under Global Warming Flood control, water supply forecasting procedures, and modeling need to be re- examined Fish and wildlife operations need to be re- examined to compensate for altered runoff shape and low summer flows Integration of renewables with Hydropower