System Review Work Group Update to TSS Andrew Christensen, SRWG Chair Presented to TSS Jan 18-20, 2017 Western Electricity Coordinating Council

SRWG Leadership Transition Chair: Andrew Christensen alchristensen@bpa.gov Vice-Chair: Jonathan Young young@columbiagrid.org Compliance Subgroup Chair: Sirisha Tanneeru sirisha.tanneeru@xcelenergy.com Base Case Coordination Subgroup Chair: Erik Olson erik.olson@pse.com Thank you to our outgoing leaders: Eleanor Ewry and John Gross Western Electricity Coordinating Council

Representation Log Trend of total Representation Log counts Western Electricity Coordinating Council

Western Electricity Coordinating Council Representation Log Recent trend by Area Western Electricity Coordinating Council

Representation Log Data to focus on in Representation Log counts Western Electricity Coordinating Council

Data Preparation Manual 2017 DPM is approved and being used 2018 DPM under development DPM Change Request – Branch Type DPM Change Request – Ratings DPM Change Request – Swing Criteria DPM Change Request – Turbine Type DPM Change Request – Transformer Type DPM Change Request – Generator Modeling DPM Change Request – WAPA Area TSS should follow up with PCC to delegate approval of DPM to TSS Western Electricity Coordinating Council

Base Case Compilation Schedule Preparing the 2018 Schedule 2018 TSS annual survey has been sent out Was due 1/13/2016 Got X (update with final #) Responses How to fit in ADS Split out the 2028HS/HW Does the ADS case take the place of the TEPPC case? Scope of ADS may require a reliability focused 2028HS Reliability has to continue regardless of ADS success SRWG needs a lot more detail on ADS scope and expectations Western Electricity Coordinating Council

Posting PowerWorld Cases WECC Staff to report Western Electricity Coordinating Council

BCCS Alternatives Task Force Successfully implemented “low hanging fruit” Annual SRWG training/workshop sessions Combining like cases in schedule Getting closer to deadlines Piloting PowerWorld case posting What's next? 2017 challenges will be political not technical What should SRWG have in flight during the transition? Document and analyze case build and data rejection processes Great opportunity with the RAC transition focusing on efficiency Western Electricity Coordinating Council

Western Electricity Coordinating Council Upcoming SRWG Meeting March 9th-10th 2017 ADS presentation on scope and expectations Update on RAC committee sections and transition Presentation on 500 vs 525 voltage base in power flow models Approve 2018 Data Preparation Manual edits Approve 2018 Base Case Compilations Schedule Western Electricity Coordinating Council