1. US Army Corps of Engineers BUILDING STRONG ® Gary Hinkle, PE June 10, 2014 Mid-West Electric Consumers Association Board of Directors Meeting Sylvan Lake, SD U.S. Army Corps of Engineers Omaha District Update

2. US Army Corps of Engineers BUILDING STRONG ® Customer Funded Projects Since 2004, 51 Projects Over $105M Past, Present & Future

3. BUILDING STRONG ® 3 Generators Big Bend Generator Rewinds - $24M Future: Preparation of Rewind Specifications; GP, FR, OA, FP

4. BUILDING STRONG ® 4 Garrison Rewind Autotransformer $1M Oahe Rehab GSU’s, Spare GSU, Containment $3.4M Oahe Parallel Autotransformer $3M Big Bend Rehab GSUs, Oil Containment $2.4M Gavins Point Replace GSUs $5.3M Future: Fort Randall Replace GSU Transformers $15M Transformers

5. BUILDING STRONG ® 5 Relay Replacements Line Relays $1M Big Bend Generator Relays $500K Fort Randall Generator Relays $500K Future: Fort Peck $400K, Misc Requests

6. BUILDING STRONG ® 6 Switchyards Gavins Point Breaker Replacement $1.5M Fort Randall – Switchyard Upgrades $15M Oahe – Switchyard Breaker Replacement - $4M Oahe – Switchyard Upgrades - $7.6M

7. BUILDING STRONG ® 7 Exciters Fort Randall Exciters, $5.5M Big Bend Exciters, $6.5M Oahe & Gavins Point Exciters; $6.5M

8. BUILDING STRONG ® 8 Gavins Point Vacuum Breakers $1M Oahe – SF6 Breakers - $3.5M Big Bend Unit Breakers - $4M Unit Breakers

9. BUILDING STRONG ® 9 Station Service Equipment Completed Station Service Rehabs at GA, BB, FP Requesting Station Service Rehabs at FR & GP Future Requests for Oahe

10. BUILDING STRONG ® Governors 10 Design Governor Upgrades $250K Governor Upgrades Supply Contract $2M Governor Installation $3M / Plant

11. BUILDING STRONG ® Mechanical Repairs 11  Oahe Generator Air Coolers $1.3M  Big Bend Bearing Oil Coolers / Shaft Sleeves / HP Oil Lift $800K  Fort Randall Penstock Packing; $525K  Gavins Point Trash Racks $80K  Unwatering Valves / Station Drainage, Big Bend & Fort Randall

12. BUILDING STRONG ® 12 Turbines Garrison Major Rehab Fort Peck Unit 2 Future: Fort Randall, Big Bend, Fort Peck, Gavins Point, Oahe

13. BUILDING STRONG ® 2015 Request - $16.3M  Station Service Breakers & Dry Type Transformers; (Gavins Point & Fort Randall)  Unwatering Valves, Raw Water Header, Drainage Piping (Big Bend & Fort Randall)  Replace Excitation Systems (Oahe & Gavins Point  Upgrade Governor Controls (GP, BB, OA)  New Designs (Fort Randall GSU Transformers, Generator Rewinds @ 3 projects) 13

14. BUILDING STRONG ® Questions  Thank you. 14