1. Bulk Electric System Definition Task Force Update Reliability Policy Issues Committee July 29, 2009 Loveland, Colorado

2. BES Definition Task Force - 2 Posted 18-page Initial Proposal 5-15-09 –Two options: (1) Hybrid approach –voltage and material impact assessment (2) Classification by voltage and function –WECC language re: change from 100 kV –16 questions Received 130 pages of comments from 70 parties

3. BES Definition Task Force - 3 Comments: Unk-4; Gen-2; ISO-1; Reg-1; TO-12; LSE-50 Themes: –Many support 200 kV as threshold for WECC –Regulatory hurdle of moving off 100 kV –Function of BES –Radial exclusion –Aggregate effect

4. BES Definition Task Force - 4 July 7-8 Salt Lake City meeting Developing second proposal – fusing elements of two options, refining using comments Need to post by end of July to meet goal of presenting at October 1 OC meeting Comments will be addressed when second proposal is posted

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?