Andrew Christensen, SDWG Chair January 2018 Chair Report Andrew Christensen, SDWG Chair Western Electricity Coordinating Council

Western Electricity Coordinating Council Agenda Model Implementation Schedule Link MVWG Update NERC SAMS Node Breaker Modeling pilot Update BA field resource from PeakRC Western Electricity Coordinating Council

Model Implementation Schedule No new models to report Keep focusing on Phase 2 wind models https://www.wecc.biz/teams/SRWG/Shared%20Documents/WECC-Approved-Dynamic-Model-Implementation-Schedule-v4.1.xlsx?Web=1 Western Electricity Coordinating Council

Western Electricity Coordinating Council MVWG Update Global line relay monitoring model Specification approved last June Has been implemented in software platforms Still has some issues – MVWG forming a task force to evaluate Latest approved dynamic model library Oct 2017 DER_A Model Development (Distributed Energy Resource model for composite load) Beta finished further testing underway Western Electricity Coordinating Council

SAMS Node Breaker Modeling Pilot Kick off Meeting was 1/18/2018 Node-Breaker Pilot Project Best Practices for Modeling Document Expectations for ground rules for converting bus-branch/planning models into node-breaker models Node-Breaker Pilot Project Deliverables Document experiences with node-breaker modeling Targeting first round of comments for Feb 16th Selected the 2017-18HW3b-OP case To participate contact Andrew Christensen alchristensen@wecc.biz Western Electricity Coordinating Council

Western Electricity Coordinating Council BA Field Resource Leveraging the Peak tools discussed this morning to add BA to the planning cases Picked up 2019HW – First submittal to WECC not approved case Current OP’s case would have higher match 73% of Buses mapped 53% of non-multisection Lines mapped 59% of two-winding Transformers mapped 90% of Generators mapped Western Electricity Coordinating Council