RIGO Update Xcel Energy Jason Standing Jeffrey Norman October 3, 2007

Updates Since Last Meeting Options 1,2,3, and 4 (western options) have been dismissed as possible options. Focus instead on the southeastern portion of Minnesota. Created a few combination options.

Option 5: Owatonna-Austin Corner 161 kV 53 MW of outlet Option 5b – Second Pleasant Valley 345/161 kV line – 308 MW of outlet

Option 8: Blue Earth-Loon Lake 161 kV 220 MW of outlet

Option 9: Pleasant Valley-Blue Earth 161 kV 43 MW of outlet Option 9b – Second Pleasant Valley 345/161 kV line – 330 MW of outlet

Option 11: Loon Lake-Jackson 161 kV 130 MW of outlet Option 11a – Reconductor of the Lakefield-Triboji 161 kV line – 255 MW of outlet

Option 5b9 Option 5b9: – Owatonna-Austin Corner 161 kV – Pleasant Valley-Blue Earth 161 kV – Pleasant Valley 345/161 kV tx 268 MW of outlet Option 5b9a – Second Maple Leaf-Byron circuit – 412 MW of outlet Option 5b9ab – Option 5b9a with tripping of new generation for loss of Pleasant Valley 345/161 tx – 617 MW of outlet

Option 89: Pleasant Valley- Blue Earth-Loon Lake 161 kV 47 MW of outlet Option 89a – Second Pleasant Valley 345/161 kV tx – 365 MW of outlet Option 89ab – Second Maple Leaf-Byron circuit – 572 MW of outlet

Where to go from here? Run a few more sensitivity cases. Determine which option to go forward with. Write up a draft report and send it out for review. Write the final report.