1. Bulk Electric System Definition Task Force Update Reliability Policy Issues Committee April 28, 2009 San Diego

2. BES Definition Task Force - 2 Entering technical phase Per 2-19 RPIC direction, adhering to WECC standards development process –Per SRRC, result will be reviewed by OC –1 st posting review: ~ May 1/June 15 –2 nd posting review: ~ July 10/August 10 –Posting 9/1 for 10/1 OC –Posting 11/9 for 12/9 RPIC, 12/10 Board

3. BES Definition Task Force – 3 > 40 expressed interest April 7-8 Salt Lake City meeting –25 in-person, ~ 10 via phone –April 16 conference call: ~ 30 participating –Upcoming calls: April 23, May 7

4. BES Definition Task Force - 4 Hybrid approach –Threshold voltage level, and –Assessment of material impact Evaluating other approaches Intending to articulate regulatory context and precedent Engaging with PWG

5. BES Definition Task Force - 5 For every complex problem there is an answer that is clear, simple, and wrong. H.L. Mencken Things should be made as simple as possible, but not any simpler. Albert Einstein Questions?