1. Nick Hatton Associate Engineer March 9, 2017
Anchor Data Set Update
Nick Hatton
Associate Engineer
March 9, 2017
Western Electricity Coordinating Council

2. Western Electricity Coordinating Council
ADS Recommendations
Create the Anchor Data Set (ADS)
Year-10 foundational case based on loads, resources, and transmission topology consistent with regional plans
An integrated year-10 production cost and power flow model
Common starting point for planning regions, stakeholders and transmission planners
Western Electricity Coordinating Council

3. Expected Benefits of ADS
Improved Efficiency
Improved Effectiveness
Improved Strategic Alignment
Single repository of accurate and consistent data
Reduced duplication of data collection processes
Common foundation for reliability assessments by regions, WECC, and stakeholders
Integration of power flow and production cost models
Western Electricity Coordinating Council

4. Anchor Data Set Deliverables
2028 Heavy Summer Power Flow Case
WECC peak summer hour developed from the Updated WPR‘s 2026 CC PCM (“Updated 2026 PCM”) power flow export
2028 ADS Production Cost Model Data Set
2028 Single-hour exported Power Flow from 2028 ADS PCM
Change Files
WPR’s 2026 CC compared to the 2028 PCM from above
Western Electricity Coordinating Council

5. High-level workflow- ADS

6. ADS Engagement with WECC
Base case process will NOT change
However the data provided may:
Encourage Data Submitters (BAs/TPs/PCs) to work with respective Regional Planning Groups
Regions to coordinate internal data collection and development processes better
Ensure Data Submitters have opportunity to review their Base Case data submittals
Goal to meet both the Planning Regions’ and Data Submitter’s needs with the ADS
Western Electricity Coordinating Council

7. Western Electricity Coordinating Council
Data Quality Protocol
Data Quality Protocol
Complementary to Data Preparation Manual
Allow for clear understanding of tasks and steps associated with ADS
RAC oversight will be identified
Provides guidance to Data Submitters to coordinate with the Regional Planning Groups
Identify key data that needs to be provided for the ADS to meet all needs
Draft version available soon
Western Electricity Coordinating Council

8. Western Electricity Coordinating Council
Current WECC Efforts
WECC staff working with WECC-wide Planning Regions on:
Developing workflow for ADS products
Release workflow by April 2017 for TEPPC and PCC feedback
Coordination of timelines for various processes
Data Quality Protocol
Identify role for RAC oversight of the ADS process
Western Electricity Coordinating Council