SCG Members

1. Subregional Planning Group Coordination Group (SCG) UpdateWECC TEPPCJeff Miller - ColumbiaGridChair - SCGJune 17, 2010

2. BCTC British Columbia Transmission Corporation AESO Alberta Electric System Operator SCG Members

3. SPG Coordination Group (SCG) • Formed to: • Foster coordination between the SPGs • Assist WECC in developing it’s 10-year plan • Ad-hoc Group • Charter approved 4-21-10 • Purpose • Mission • Membership • Voting • Organization

4. Subregional Planning Group (SPG) Primary Role • Preparing a “Foundational Transmission Project List” that WECC can use a starting point for their 10-year plan. • The “Foundational Transmission Project List” will not provide sufficient transmission additions for the 10-year time frame • Need to know where new resources (supply or demand side) will be located before a complete transmission plan can be developed • WECC will build on SCG foundation to meet resource policy goals and mitigate congestion • WECC may also remove or change projects that are in the SCG list • The SCG will also provide a list of “Potential” Projects that WECC can utilize to integrate resources and mitigate congestion

5. FOUNDATIONAL PROJECTS BY 2020 • NTTG • NTTG01 –Gateway South Phase 1 • NTTG02 – Gateway Central Phase 1 • NTTG03 – Gateway West Phase 1 • NTTG05 – Hemingway – Boardman • NTTG06 – Cascade Crossing • NTTG07- Mountain States Intertie • CG • CG01 – I-5 Corridor • CG02- West McNary • CG03 - Big Eddy – Knight • CG04 – Little Goose Area Reinforcement • BCTC • BCTC01- Nicola – Meridian • BCTC03- BC-US Intertie • Alberta AESO • AESO03 1202L Conversion • AESO04 Heartland • AESO05 West HVDC • AESO06 East HVDC • AESO07 Fort McMurray - East Line • AESO08 Fort McMurray - West Line • CAISO • CAISO02- Sunrise • CAISO03- Midpoint (CA)-Devers • SSPG • SSPG01- SWIP • SSPG03- SNIP (Phase 2) • SSPG06 – TCP Harry Allen - Northwest • SSPG07 – TCP Northwest – Armagosa • SSPG09 – SWIP South • SWAT • SWAT01-PV-NG#2 • SWAT06- Pinal Central – Tortolita • SWAT07- Southeast Valley (SEV) • SWAT08 – PV - Morgan • CCPG • CCPG02 – Pawnee – Smoky Hill • CCPG03 – Waterton- Midway • CCPG04 – San Luis Valley Alberta AESO07 AESO08 Heartland AESO03 AESO04 AESO06 Ellerslie Genesee AESO05 DRAFT Langdon Nicola Meridian West Brooks BCTC01 Ingledow BCTC03 Custer Montana Washington Castle Rock Townsend CG02 CG01 MidColumbia Troutdale McNary NTTG014 Coyote Spgs John Day Bethel NTTG07 NTTG06 Boardman NTTG05 Idaho Oregon Hemingway Midpoint Wyoming NTTG03 Populus Aeolus NTTG03 Bridger NTTG02 NTTG01 Terminal SSPG01 Pawnee Oquirrh CCPG02 Limber Nevada Mona Smoky Hill Waterton NTTG01 CCPG03 Sigurd Midway California Legend Utah Colorado Red Butte Amargosa SLV Comanche SSPG06 500 kV Single Circuit Line 345 kV Single Circuit Line 500 kV Double Circuit Line 345 kV Double Circuit Line DC Circuit (various voltage) Termination Substations Intermediate Substations CCPG04 SSPG07 Harry Allen Northwest SSPG03 Eldorado Arizona Morgan SWAT08 Devers Midpoint (CA) Browning CAISO03 New Mexico SWAT07 SWAT01 Peňesquitos Imperial CAISO02 Palo Verde Pinal Central North Gila II SWAT06 Tortolita Draft Document - Ver. 4.0, May 11, 2010 (1) Map does not reflect 230kV lines that are included in the Foundational Transmission Project List. (2) Internal reinforcements projects not shown for clarity. (3) Lines shown are for illustrative purposes only and may not reflect final line routing.

6. POTENTIAL PROJECTS BY 2020 • NTTG • NTTG01 –Gateway South Phase 2 • NTTG02 – Gateway Central Phase 2 • NTTG03 – Gateway West Phase 2 • NTTG04 – Hemingway-Captain Jack • NTTG08 – Chinook • NTTG09 – Zephyr • NTTG10 – Overland • NTTG11 – Transwest Express • NTTG13 – Colstrip Upgrade • CG • CG05 – Juan De Fuca Cable #1 • CG06 – Juan De Fuca Cable #2 • CG07 – West Coast Cable • BCTC • BCTC02- CNC including Devils Gap • Alberta ESO • AESO02- Northern Lights • AESO09 – Edmonton - Calgary • CAISO • CAISO01- C3ET • SSPG • SSPG04 – Harry Allen – Mead (line #2) • SSPG05 – Mead- Eldorado • SSPG08- Blackhawk - Armagosa • SWAT • SWAT02-PV-Colo. River • SWAT03- Navajo Transmission Project • SWAT04- SunZia • SWAT05- High Plains Express • CCPG • CCPG01 – WCI • CCPG05 – Lamar Front Range • CCPG07 – Pawnee - Daniels Park • CCPG08 – Pawnee – Story Edmonton AESO09 DRAFT Calgary Selkirk AESO02 BCTC02 CG05 CG06 Washington Montana Townsend MidColumbia NTTG013 Buckley CG07 Oregon Idaho Hemmingway Midpoint Captain Jack Wyoming Windstar Populus NTTG04 NTTG10 Aeolus NTTG03 Bridger SWAT05 LRS Terminal CCPG 08 Nevada NTTG01 CCPG 01 BCTC02 NTTG02 Wray Limber Pawnee NTTG08 NTTG11 CCPG 07 NTTG09 Blackhawk Mona Story Daniels Park SSPG08 Sigurd CCPG05 Missile Site NTTG01 California Legend Colorado Boone Comanche Collinsville Amargosa Red Butte Lamar Utah 500 kV Single Circuit Line 345 kV Single Circuit Line 500 kV Double Circuit Line 345 kV Double Circuit Line DC Circuit (various voltage) Termination Substations Intermediate Substations Gregg Vilas Harry Allen Crystal CAISO01 Gladstone Red Mesa Mead Shiprock Marketplace New Mexico SWAT03 Moenkopi Midway Eldorado Arizona Springerville Blackwater Corona Colo. River SWAT02 SunZia East SWAT05 Palo Verde Pinal Central SunZia Midpoint SWAT04 (1) Map does not reflect 230kV lines that are included in the Foundational Transmission Project List. (2) Internal reinforcements projects not shown for clarity. (3) Lines shown are for illustrative purposes only and may not reflect final line routing. Draft Document - Ver. 4.0, May 11, 2010

7. Project Matrix Nearly Complete

8. How the SCG Selected the Projects • Screened projects for regional significance based on voltage level • All proposed 500 kV and higher projects • 345 kV projects unless the project is deemed not to be a backbone facility • Projects above 200 kV that are deemed to be backbone facilities • Applied criteria to screened projects to assess the level of certainty of project construction

9. Foundational Transmission Project List Criteria • Must Meet at least one of the following: • Sponsor is required to build project to reliably serve load or to meet firm commitments for transmission service • Project is necessary to integrate WECC LRS Class 0 or Class 1 resources • Project sponsor(s) has a firm commitment to fund project construction. • SCG is currently using eleven indicators, including: • Are major equipment orders placed? • Is permitting actively underway or completed? • Are there executed project participation contracts?

10. Open Process and Meetings • Materials available on the WECC website • Go to: Committees>TEPPC>SCG>Documents, for: • Approved Charter • Go to: Committees>TEPPC>SCG>, for: • Draft Criteria • Draft Report • Draft Matrix • Draft Maps • Final “Foundational Transmission Projects List” and report scheduled to be complete by the end of June

11. SCG Report Will Include: • Overview • SCG Charter • Foundational Project Criteria • Project List • Foundational • Potential Projects • Maps

12. Other SCG Activities • SPG’s will remain active in the various WECC groups to support the development of the WECC Plan • Working to synchronize SPG planning processes with each other and WECC • SPG’s will complete reliability analysis of the WECC Plan • Planned to be initiated after WECC completes their 10-year plan • Probably will be completed by the SPGs as part of their normal reliability assessment cycles

13. Questions?