1 JPA Meeting Joint Planning Agreement Western Area Power Administration Desert Southwest Region July 13, 2005

2 JPA Agenda Welcome / Introductions / Logistics Power Marketing Updates (Oretta/Gray) –O&M Agreements (Oretta) –Remarketing Efforts (Gray) WALC OASIS (Steward) 10 Year Plan (Byron) –HDR161KV – BLY161KV Reconductoring –South of Phoenix Study Updates (York) –River System Study –Southern Arizona Study JPA Goals (Moulton) Action Items

3 JPA Meeting Power Marketing Updates Mary Oretta Jean Gray (602) (602)

4 Power Marketing Updates O & M Agreements Remarketing Efforts

5 JPA Meeting WALC OASIS John Steward (602)

6 WALC OASIS Definitions Webpage Links Registration Process to obtain Login View Business Practices View Transmission Offerings View Transmission Reservations Summary Questions

7 Definitions Open Access Same-time Information System (OASIS) Open Access Technology International (OATI) WestTTrans Transmission Services Information Network (TSIN)

8 Webpage Links

9 Registration Process REGISTRATION PROCESS 1. Obtain a NERC acronym – Once an acronym is obtained proceed to step (Takes approximately 1 to 2 Days). 2. Register Company with OATI, Company Registration form to OATI. Once OATI verifies your company is registered proceed to step Obtain OATI’s security certificate Registration – Contact OATI to start the registration process. When a security certificate is obtained proceed to step Register with OATI as an OASIS user – user registration form to OATI. When user account is activated proceed to step Contact Western to activate you as a valid customer – Western will verify if customer is eligible to purchase transmission. Customer will be notified if they met eligibility requirements. Proceed to step Log on to WestTTrans and submit transmission request. 7. How to Purchase WALC Transmission Services FlowchartHow to Purchase WALC Transmission Services Flowchart

10 Western’s Business Practices Web Site:

11 Example of Offerings

12 Transmission Offerings Knowledge of transmission provider’s path View the price associated with a path Most important view ATC (both firm and non-firm) on a given path during a specific time period

13 Transmission Reservations View transmission market tendencies View the status of your transmission request View queued position of your request

14 Example of Reservations

15 Summary Registration Process View Western’s Business Practice & News Tutorials – Transmission Offerings & Transmission Reservations

16 JPA Meeting 10 Year Plan Updates Don Byron (602)

17 10 Year Plan Updates Headgate Rock 161-kV Substation to Blythe 161-kV Substation Reconductoring –(HDR161KV – BLY161KV Reconductoring) South of Phoenix –Completed Upgrades –Future Projects Ten Year Plan Link

18 JPA Meeting Transmission Study Updates Leonard York (602)

19 Update - River System Study Purpose –Evaluate Three 230kV Transmission Projects –Expect Each to Substantially Increase River System ATC –Each To Require About a Three-Year Lead Time –Focus on Year 2008 Load-Serving in Mohave County Projects –Reconductor Mead-Davis-Topock Line –Reconductor Gavilan Peak/Peacock Line –Build Griffith-North Havasu Line Participants –APS –CAWCD –MEC –SWTC –TEP/UNS Case –Reviewed By Participants

20 Update – Southern Arizona Study Purpose –Re-rate Path C (South of Phoenix) –Inservice: South of Phoenix Uprate to Casa Grande –Not Inservice: Pinal West/Santa Rosa/Browning 500kV Results –Increased Rating from 290 to 660 MW –Critical Outage: Kyrene-Knox 230kV –Critical Overload: Lone Butte-Test Track 230kV Report –Non-Simultaneous Import Power Flow Study –Expect Brief Report by September 2005

21 JPA Meeting Joint Planning Agreement Goals Ron Moulton (602)

22 JPA Principles Purpose & Objectives –Establish a Planning Committee. –Interactively develop a long-term “Transmission Plan.” –Review & Revise Transmission Plan Annually.

23 JPA Principles Planning Committee –Comprised of Parties to the JPA. –Identify, receive and process planning information provided by Parties annually. –Prepare Transmission Plan. –Hold Annual Planning Meeting(s)

24 JPA Principles Annual Planning Meeting –Held in July each year. –Review Transmission Plan –Review, discuss, deliberate other.

25 JPA Principles Goals –Interactively develop DSW 10 Year Transmission Plan. River System South of Phoenix System –File DSW 10 Year Transmission Plan with Arizona Corporation Commission (ACC) in January 2006 (as a courtesy). –Support/Coordinate with Southwest Area Transmission Planning Forum (SWAT). –Support ACC Biennial Transmission Assessment (next round 2006).

26 JPA Meeting Any –Questions? –Comments? –Answers?

27 JPA Action Items

28 JPA Meeting Thanks for Attending!!

29 JPA Participants AGUILA AK-CHIN INDIAN COMMUNITY ARIZONA POWER AUTHORITY ARIZONA POWER POOLING ASSN ARIZONA PUBLIC SERVICE COMPANY AVRA VALLEY IRRAGATION DISTRICT BOULDER CITY, CITY OF BUCKEYE WATER CONSERVATION DRAINAGE DIST BUREAU OF RECLAMATION CENTRAL ARIZONA WATER CONSERVATION DIST CHANDLER HEIGHTS CITRUS IRRAGATION DIST COLORADO RIVER COMM OF NEVADA CORTARO-MARANA IRRIGATION DISTRICT ELECTRICAL DIST NO 3 ELECTRICAL DIST NO 4 ELECTRICAL DIST NO 5 MARICOPA ELECTRICAL DIST NO 5 PINAL ELECTRICAL DIST NO 6 ELECTRICAL DIST NO 7 ELECTRICAL DIST NO 8 HARQUAHALA VALLEY POWER DISTRICT LINCOLN COUNTY POWER DISTRICT #1 MARICOPA WATER DISTRICT

30 JPA Participants MCMULLEN VALLEY WATER CONSERVATION & DD NEEDLES, CITY OF OCOTILLO WATER CONSV DIST OVERTON POWER DISTRICT NO 5 QUEEN CREEK IRRIGATION DIST ROOSEVELT IRRIGATION DIST SAFFORD, CITY OF SALT RIVER PROJECT SAN CARLOS IRRIGATION PROJECT SAN TAN IRRIGATION DISTRICT SILVERBELL IRRIGATION DISTRICT THATCHER, TOWN OF TOHONO O’ODHAM UTILITY AUTHORITY TOHOPAH IRRIGATION DISTRICT UNIT “B” IRRIGATION & DRAINAGE DISTRICT UNS ELECTRIC INC VALLEY ELECTRIC ASSOCIATION WELLTON-MOHAWK IRRIGATION & DD WICKENBURG, TOWN OF YUMA COUNTY WATER USERS ASSOC YUMA IRRIGATION DISTRICT YUMA PROVING GROUND YUMA-MESA IRRIGATION & DRAIN