ADSTF Update: Resource Mapping and Proposed Solution System Data Work Group (SDWG) 01/23/2018 Jon Jensen, Vijay Satyal, Enoch Davies WECC Staff Western Electricity Coordinating Council

Western Electricity Coordinating Council Overview Problem Statement Need for resource mapping ADSTF – Findings Short term Long term (Proposal) Proposal Western Electricity Coordinating Council

Western Electricity Coordinating Council Problem Statement Resources don’t match between the 2026 WPR provided PCM seed case and the 2028 HS PF case Was the topology and generation resources the same between the 2026 WPR Submission vs. what was provided by the data submitters into the 2028 HS PF? Western Electricity Coordinating Council

Western Electricity Coordinating Council What is happening? Compare and map generation differences between the 2026 WPR Seed PCM and the 2028HS1 PF (ADSTF PF2 issue list item) Identifying generator inconsistencies between the two cases Western Electricity Coordinating Council

ADS Production Cost Model Components Generation Map and align between 2028HS1 PF and 2026 WPR ADS Seed PCM Transmission 2028HS1 PF topology Loads 2028HS1 PF Load Distribution Western Electricity Coordinating Council

Western Electricity Coordinating Council Resource Mapping Sources: 2028HS1 PF Submittal notes regarding Generation changes between cases 2026 WPR ADS Seed PCM Case 2028HS1 PF Western Electricity Coordinating Council

Generation Matched Generation Keep Mismatched Generation Bus Number Match Bus Name Match ID… Use 2028HS1 Bus, KV, ID Use 2028HS1 names if differ Generators ONLY in 2026WPR ADS Seed PCM Match what we can, keep. Delete unless parked Generators ONLY in 2028HS1 PF Import remaining Western Electricity Coordinating Council

Western Electricity Coordinating Council Process Parked Gens Stay in PCM Busses 1000, 2000, 3000, 4000, 5000 Equivalenced/Aggregate-Accounted for in GridView. GridView will consolidate to one unit, then redistribute upon PF export. New generator names in PCM Format ex. BusNumber_BusName_ID_New Station Service Loads Deleted in PCM Load Modifiers Generation Side Western Electricity Coordinating Council

Western Electricity Coordinating Council What’s next? Reconcile Generator information Implement changes Move gens to proper location Update names (PF) Unit kV (PF) Unit IDs (PF) Add/Delete appropriate generators Western Electricity Coordinating Council

Western Electricity Coordinating Council ADSTF Findings Acknowledgment of differences Issue List- PF 2: Initial mitigating idea: Regions right-away build a “Specialized PF case” – not realistic. Proposed ADSTF solutions: Short term – Identify differences (resource mapping) Long term – Create a feedback loop into BCCS. Western Electricity Coordinating Council

Proposed Long-Term Solution Communication between Regional Planning Groups and data submitters continues Each year-10 PF case must include coordination Resource differences for first ADS will be made available for coordination Ultimate goal of a “single vision” of the year-10 for planning needs Western Electricity Coordinating Council

Western Electricity Coordinating Council

Western Electricity Coordinating Council Discussion Jon Jensen (Resource Mapping) jjensen@wecc.biz (801) 819-7614 Enoch Davies (Base Case Compilation) edavies@wecc.biz Vijay Satyal (ADSTF Liaison) vsatyal@wecc.biz Western Electricity Coordinating Council