1. 1 2007 Database & Lessons Learned WECC - TEPPC Technical Advisory Subcommittee Meeting San Francisco, CA November 28, 2007 Jamie Austin PacifiCorp

2. 2 DWG Progress Report Loads Fuel Prices Resources: Thermal, Hydro Emission Transmission Capital costs data

3. 3 Room for Improvement Loads DSM Efficiencies Transmission Nomograms Phase Shifters Paths Rating Thermal Resources Merged SSG-WI & TEPPC thermal data (50-50) CCCTs Emission – Darrell Holmes, SCE Have draft EPA data by fuel type – working on validation contact person on vacation

4. 4 Pending CCCTs Use the SSG-WI generic data - fix minimum block Heat Rate Dynamic Hydro Related impacts: all energy sources RPS NREL 10 Minute Data Capital Costs : will evaluate the CEC and Frontiers levelized costs for different technologies. Looking at forming a Focus Work Groups

5. 5 Lessons Learned New process, New Model, New staff members – too many News Involve the effected workgroups early in the process when making changes to any of the fundamentals (e.g. changing thermal data). Why not use some of the FERC rules here? Openness and transparency Coordination Quality control Coordination – as it applies to the four TAS committees - revisit the organizational structure. One fix may be as simple as adding facilitation to coordinate between committees.