Joint Electric Scheduling Subcommittee Update August 20, 2013

2 Free Template from Update Topics Meetings e-Tag PKI Implementation e-Tag Functional Specification WEQ-004 Coordinate Interchange Business Practice Standards Electric Industry Registry Update 2

Meetings Meetings Since Last Update May 7-8, 2013 (Carmel, IN) June 11-12, 2013 (Folsom, CA) July 9-10, 2013 (Redwood City, CA) August 6-7, 2013 (Holyoke, MA) August 13, 2013 (conference call) Future Meetings September 10-11, 2013 (conference call) October 29-30, 2013 (Little Rock, AR) December 18-19, 2013 (Houston, TX) 2014 Meetings Every 6 weeks 3

e-Tag PKI Implementation Specification approved by WEQ EC November 27, 2012 Interoperability test plan development Two tests, August 8, 2013 and August 29, 2013 Creation of a test registry First test results…… Requested EIR enhancement to include ACA publication Initial development under test Expect implementation by September 10,

5 Free Template from e-Tag Specification remanded back to JESS by EC at the April WEQ EC meeting Address standards request R13004 Address management of a single reliability limit profile by multiple entities R13004 submitted by BPA and California ISO concerning role of Market Operator in e-Tag and proper representation of market transactions. JESS recommended use of new “products” in generation and load lines of the tag ( minimizes registry and e-Tag changes). JESS is focused on a multiple profile approach and plans to distribute a questionnaire/survey to industry to assess impacts versus benefits. 5

6 Free Template from WEQ-004 Coordinate Interchange Business Practice Standards Order 764, 15-minute Scheduling Intervals To promote expediency, JESS voted out of subcommittee changes to the WECC Timing table and changes to , Default Ramp Durations. Posted for 30-day formal comment due September 9, 2013 Monitoring NERC Project , INT rewrite efforts Proposed INT standards posted for comment JESS is assessing need to complementary business practices Hopeful to finish WEQ-004 modifications within 2014 Q1 – dependent on

7 Electric Industry Registry Business Practice Standards Developed JESS WEQ Annual Plan Item 3.d Posted for formal comments July 12, 2013 Formal comments from RTOs/ISOs Southern Company OATI WE Energies BPA Late comments from JESS Created July 13, 2013

8 EIR Update Topics Phase 3 WECC Adjacency Data Retirement of legacy formats – CSV and MDB Emergency Publication Other

Questions/Feedback 9