1

Nodal Planning Model

1. Latest Topology Processor Output Discussion
2. Approve SSWG System Change Request
3. Review Progress of Corrections
4. Review-Add to Issues List

2

Review-Update Schedule

• April 23  ERCOT sends Pass 1 cases to SSWG
• April 28  SSWG Conference Call
• April 30  Pass 1 changes due to ESP
• April 30  Complete CNG and CN updates for CRR market trials
• May 7  ERCOT sends Pass 2 cases to SSWG (gen dispatch included)
• May 12  SSWG Conference Call
• May 14  Pass 2 changes due to ESP
• May 21  ERCOT sends Pass 3 cases to SSWG
• May 21  TSP/SSWG remaining data changes for CRR Model
• May 26  SSWG meeting Taylor
• May 28  ERCOT Topology Processor enhancements delivered
• June 1  TPIT spreadsheet updates due to ERCOT
• June to August  Make remaining changes to IMM prior to Planning Go-Live
• June 15 to 17  SSWG meeting to finalize cases
• June to July  TPIT update work
• July  TSPs Complete changes
• July  MOD/PMCR training
• Aug  Compare TP output to SSWG 2010 summer peak case
• Sept 1  TPIT spreadsheet updates due to ERCOT
• Sept 21 to 23  SSWG meeting to finalize DSB cases
• Sept to Oct  TPIT update work
• Nov  Create 2012 summer peak case using TP and MOD
• Dec 1  TPIT spreadsheet updates due to ERCOT
• Dec 1  Nodal Go-Live
• Dec to Jan 2011  TPIT update work
• Mar to April 2011  Begin work to create 12DSA using Nodal method

3

11DSA

4

West Texas Wind Dispatch for cases with all CREZ facilities modeled

5

CPS Voltage Profile Request

6

Other Topics

Adjourn