US Army Corps of EngineersBUILDING STRONG®

Gary Hinkle, PEJune 10, 2014

Mid-West Electric Consumers AssociationBoard of Directors MeetingSylvan Lake, SD

U.S. Army Corps of EngineersOmaha District Update

US Army Corps of EngineersBUILDING STRONG®

Customer Funded Projects

• Since 2004, 51 Projects • Over $105M• Past, Present & Future

BUILDING STRONG®3

Generators

Big Bend Generator Rewinds - $24MFuture: Preparation of Rewind Specifications; GP, FR, OA,

FP

BUILDING STRONG®4

Garrison Rewind Autotransformer $1MOahe Rehab GSU’s, Spare GSU, Containment $3.4MOahe Parallel Autotransformer $3MBig Bend Rehab GSUs, Oil Containment $2.4MGavins Point Replace GSUs $5.3MFuture: Fort Randall Replace GSU Transformers $15M

Transformers

BUILDING STRONG®5

Relay Replacements

Line Relays $1MBig Bend Generator Relays $500KFort Randall Generator Relays $500KFuture: Fort Peck $400K, Misc Requests

BUILDING STRONG®6

Switchyards

Gavins Point Breaker Replacement $1.5MFort Randall – Switchyard Upgrades $15MOahe – Switchyard Breaker Replacement - $4MOahe – Switchyard Upgrades - $7.6M

BUILDING STRONG®7

Exciters

Fort Randall Exciters, $5.5MBig Bend Exciters, $6.5MOahe & Gavins Point Exciters; $6.5M

BUILDING STRONG®8

Gavins Point Vacuum Breakers $1MOahe – SF6 Breakers - $3.5MBig Bend Unit Breakers - $4M

Unit Breakers

BUILDING STRONG®9

Station Service Equipment

Completed Station Service Rehabs at GA, BB, FPRequesting Station Service Rehabs at FR & GPFuture Requests for Oahe

BUILDING STRONG®

Governors

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Design Governor Upgrades $250KGovernor Upgrades Supply Contract $2MGovernor Installation $3M / Plant

BUILDING STRONG®

Mechanical Repairs

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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

BUILDING STRONG®12

TurbinesGarrison Major RehabFort Peck Unit 2Future: Fort Randall, Big Bend,

Fort Peck, Gavins Point, Oahe

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)

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BUILDING STRONG®

Questions

Thank you.

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