Base Case Coordination System Report Philip Augustin – TSS Chair Nathan Powell – PCC Staff Liaison July 2015 Salt Lake City, UT W ESTERN E LECTRICITY C OORDINATING C OUNCIL

BCCS History – 12/2011 thru 7/2014 2

Contract Signed end of 2011 Original Production Ready Release Date was January 2013 (delayed to June) – Today 2 ½ Years behind Considerable Time/Effort in Training Several Releases and Project Delays PSLF/PSS/E Conversion Issues 3 W ESTERN E LECTRICITY C OORDINATING C OUNCIL

BCCS History – 8/2014 thru 1/2015 4

Resolution Date Continues to Slip End of December 2014 Resolution Deadline Given Siemens Staff On-Site Work in November Valuable Progress Made but End of Year Deadline Missed 5 W ESTERN E LECTRICITY C OORDINATING C OUNCIL

BCCS History – 2/2015 thru 5/2015 6

Possibility of Project Cancellation Escalated to Executive Level Recommitment and Additional Siemens Staff Assigned to Project Some Success with Solvable Cases More Stringent Test Plan Developed (member review and input included) Many Tests Performed by Siemens/WECC Staff Were Successful, Some Still Failed 7 W ESTERN E LECTRICITY C OORDINATING C OUNCIL

Timeline Presented at Last PCC Meeting 8 W ESTERN E LECTRICITY C OORDINATING C OUNCIL

BCCS History – 6/2015 thru 8/2015 9

Siemens Staff on-site at WECC User Test and Training Week June 8-12 – Unsuccessful Case Build – Four New High Priority Issues June 26 Resolution Date Not Met High Priority Resolution Date moved to July 31 Pre-Release Patch (released last week) Indicate Significant Improvement in PSLF Profile Size Medium/Low Priority Resolution date moved to Sept W ESTERN E LECTRICITY C OORDINATING C OUNCIL

July 31 Patch Patch to Address 8 “High” Priority Issues – medium, and low priority issues still exist – – List is not a comprehensive list of all the issues – 6 of the 8 are resolved Majority focused on significant performance improvement for PSLF users 1 issue is considered addressed by Siemens, Users/WECC Staff do not agree – “WECC and Siemens to review the workflow process. Then we will test the process against the current implementation and make changes if necessary” Final issue concerns 80 concurrent users and we have not seen that many users in our tests A number of new issues identified – PSS/E subsystem filtering not functioning – Bug in rating profile import – Type 5 SVDs removed from case – 3-winding transformer midpoint bus duplication – Plus others that have not been examined 11 W ESTERN E LECTRICITY C OORDINATING C OUNCIL

Case Differences Program/conversion issues – Type 5, 6, 7 data issues Control information is not populated due to program implementation differences – Voltage/flows between PSLF and PSS/E cases coming out of MOD will not match after it is solved in the software of choice This issue is address through post processing in current process 12 W ESTERN E LECTRICITY C OORDINATING C OUNCIL

BCCS History Questions or Comments on History and Current Status? 13 W ESTERN E LECTRICITY C OORDINATING C OUNCIL