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SRWG REPORT Presented by: David Franklin

WESTERN ELECTRICITY COORDINATING COUNCIL TECHNICAL STUDIES SUBCOMMITTEE August 15-17, 2007 Seattle, Washington. SRWG REPORT Presented by: David Franklin. Presentation Topics. 2008 Study Program Disturbance list Disturbances per Regions

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SRWG REPORT Presented by: David Franklin

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  1. WESTERN ELECTRICITY COORDINATING COUNCILTECHNICAL STUDIES SUBCOMMITTEEAugust 15-17, 2007Seattle, Washington SRWG REPORT Presented by: David Franklin

  2. Presentation Topics • 2008 Study Program • Disturbance list • Disturbances per Regions • Changes to 2008 Annual Study Program Outline **Approval Item** • Performance Log Review • Tri-State Status of Performance Log • Representation Log Review • Revised Rep Log • Recording PSS Data • Circulating Loop Flow in Base Cases • Stressed Base Cases to Achieve Maximum Path Flows • SRWG Handbook • Data Preparation Procedural Manual • Guideline, Procedure, or Policy • SRWG Workshop – Oct. 31st San Francisco, CA • SRWG Proposed 2008 Meeting Locations2007 Study Program

  3. Annual Study Program • Disturbance list for 2008 Annual Study Program • PATHS • 16 (Idaho Sierra), 24 (PG&E Sierra), 27 (Intermountain DC), 28 (Intermountain-Mona 345), 29 (Intermountain-Gonder 230), 30 (TOT 1A), 31 (TOT 2A), 32 (Pavant/Intermountain-Gonder), 33 (Bonanza West), 34 (TOT 2B 1&2) 35 (TOT 2C) (NE of Vegas), 36 (TOT 3), 39 (TOT 5) 40 (TOT 7), 76 (Alturas Project) • Of the 15 paths identified there are only 2 known SPS/RAS outages • DGT-1 (Bonanza Unit Dropping), PACE-1 (Mona-IPP Power & Voltage Relay Scheme), • Critical outage for each path will be identified • Additional outages include: • Midpoint-Summer Lake Palo Verde-Devers 1 & 2 Harry Allen – Mead 500kV • Disturbances per Regions • Idaho/Montana – 2007 • Colorado/Utah/Northern Nevada 2008 • Canada/NW/COI - 2009 • California between Path 15 and W of River - 2010 • Desert SW/Las Vegas/Arizona/New Mexico - 2011

  4. 2008 Annual Study Program Outline • PROPOSED BASE CASES FOR 2008 • 5 Operating Cases, Two 5-year Base Cases, Two 10-year Base Cases, & Two Scenario Base Cases • 2008-09 HW2-OP • 2008 LW2-OP • 2009 HSP1-OP • 2013 HS1 (5 year) • 2015-16 HW/Sys Val/TEPPC • 2012-13 LW1-S (5 year) • 2011 HA1-S 2013-2014HW1 • 2009 HS3-OP • 2009 LS1-OP • 2013-2014HW1 2019 HS1 • 2018-19 HW1 (10 year)

  5. Performance Log Review • TRI-STATE PERFORMANCE LOG REVIEW • Tri-State Plans to present revised study results at the November 2007 SRWG Meeting for review/approval.

  6. Representation Log Review • The Rep Log was reformatted for clarity • 428 Rep log items including missing PSS for generators • This Rep Log is a comparison between the 08LW1 pre-run and approved base cases. • PSS Survey was sent out in January 2007 • For Generators 75MVA or greater • 75% Response • PSS Survey was be sent out for those generators 30MVA – 75MVA in May 2007

  7. Circulating Loop Flow In Base Cases • Circulating loop flow in bases have been identified. The target flows were not met. • Few base cases were posted that did not meet the following criterion: • Actual flows within  10% of target are acceptable, but not to exceed the actual rating of the path. • SRWG Evaluating the need of a Task Force to address this issue • Stressed Base Cases – Scenario Base Cases

  8. SRWG Handbook • The SRWG completed the final SRWG Draft Handbook. • The SRWG Handbook is presented to TSS for review/comments.

  9. Data Preparation Procedure Manual • The DPPM completed the final SRWG Draft Handbook. • The DPPM was revised to address the NERC Standards. • The SRWG Handbook is presented to TSS for review/comments.

  10. SRWG Workshop • SRWG Workshop – Oct. 31st San Francisco, CA

  11. 2008 SRWG Meeting Locations • 2008 SRWG Proposed Meeting locations • March Victoria, BC • July Portland, OR • November San Diego, CA

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