Joint Electric Scheduling Subcommittee Update October 29, 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 September 10-11, 2013 (conference call) Future Meetings 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 Implementation delayed until November 5 th Testing results indicated success During cut over issues were compatibility issues found Rolled back and postponed until November 5 th Weekly vendor calls to discuss status and results from ongoing work to ensure go-live 4

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 asses 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 cutover October 29 th WECC Adjacency Data as of October 11 th indicated 97% registered Retirement of legacy formats – CSV and MDB to occur November 12 th Automated Emergency Publication Other

Questions/Feedback 9