1. Jonathan young ColumbiaGrid
2018 System Assessment
Jonathan young
ColumbiaGrid

2. 2018 System Assessment Postings
Study Plan posted on 4/27/18
Expanded from previous years to contain more details:
Transmission projects modeled in the cases
Changes to 2017 project completion dates
Load levels in NW major load areas
Load level comparison to 2017 cases
Resource retirements
Interface flows
Completed projects from 2017
Cases with Contingencies posted on 5/14/18
Link to both postings:

3. 2018 System Assessment Status
Current Steps (June)
Process & Review Contingency Results for Light Load Case, One 5 Year Case, and Both 10 Year Cases
Evaluate Order 1000 Potential Needs
Process & Review Transient Stability Study Contingency Results

4. 2018 System Assessment Status
Next Steps (July+)
Prepare System Assessment
Identify Order 1000 Needs
Prepare Need Statement
Approve System Assessment
Recommend Study Teams for Proposed & Order 1000 Needs
Have a participant meeting to evaluate current study methods for improvement opportunities in 2019 Study Plan
(Schedule)

5. Contingency/Dynamic Data
Contingency Data
Loaded the 2017 System Assessment Contingency/RAS Files
Omitted P3 & P6 Contingencies
Sent out for review with a focus on contingencies with unlinked actions
Initially a lot of unlinked actions due to numerous changes to the multi-section line representations
After correcting the multi-section actions the rest of the lists were in relatively good condition
Dynamic Data
Bo is actively updating the cases for dynamics runs
(Update)

6. Results Review Change Provide Summary Review to Each Member
Small white paper with focused results for each member to review
i.e. CG would further filter results to reduce review time for members

7. Scenarios Studies MOD 33 Focused P3 & P6 Assessment
Long Term High Renewable Study

8. Jonathan young young@columbiagrid.org
Questions
Jonathan young

9. Jonathan Young ColumbiaGrid
2028 ADS, ADSTF, & RAC Update
Jonathan Young
ColumbiaGrid

10. 2018 ADS Status and Next Steps
2028 ADS PCM V0.3.2 Posted June 1st
Target Date: June 10
Validation of the PCM Dataset
Target Date: June 30
Complete Roundtrip Validation

11. ADSTF Update: Key Issues of Focus
Validating the recently posted data set
Reviewing long term inconsistencies such as:
Public Policy Requirements
Should they be considered?
If so, to what extent and where in the process?
Resource Reconciliation
How to address the different opinions on resource modeling from Data Submitters, Regional Planning Groups, and WECC
How to achieve goals without violating standards?
Can WECC user needs be met with a single long term data set?

12. ADSTF: Multi-Case Open Discussion
Open Discussion about Multi-Case Issue
Can a data set be produced as a viable starting point for both needs?
Many ADSTF members are saying yes, but is this realistic or idealistic?
Is it appropriate to tell the data users (customers) what they need to model instead for the data users telling WECC?
If not, can multiple data sets be produced that:
Are efficiently produced with current SDWG resources?
Provide better data sets than produced in the past?
Create efficiencies by aligning common data?

13. ADSTF: Multi-Case Open Discussion
Possible Path
The ten year planning cases are started in late summer and completed in late fall/early winter.
Take that output and align it with a PCM data set.
This data alignment can occur on a yearly basis for incremental changes
It represents a large part of the alignment issues
It does not have to wait on updated regional plans or L&R data sets
The resulting PCM data set can be used to produce several profiles for member who prefer this data set

14. ADSTF: Multi-Case Open Discussion
Possible Path (Cont.)
The resulting power flow case and PCM data set can be then updated in the spring to align with the regional plans and/or with the new L&R submittals
This update/alignment should be relatively small compared to the planning case alignment so the summer deadlines would not be difficult to achieve
The differences between the two case/data sets can be modeled with different flags to note the differences between the sets

15. ADSTF Update
WECC request for update from regions at the next RAC meeting

16. Jonathan young young@columbiagrid.org
Questions
Jonathan young

17. Area Coordinator Update
Jonathan young
ColumbiaGrid

18. New SDWG Leadership Team
Chair: Jonathan Young, ColumbiaGrid
Vice Chair: Sirisha Tanneeru, Xcel Energy
Former Compliance Coordinator
Base Case Coordinator: Erik Olson, Puget Sound Energy
Compliance Coordinator: Lukas Boler, BPA

19. SDWG / Area Coordinator Activities
Upcoming Data Preparation Manual Changes
2019 DPM: Bus High/Low Volt Limits Requires that Data Submitters include the high and low voltage bus limits that are consistent with the SOL’s submitted to the associated RC in their submittals.
NERC SAMS Activity
Node Breaker Modeling Pilot
MOD Review Group
Performing an assessment of industry practices around base case model building to understand the current state-of-the-art practices for each PC area and their interconnection.
Data Quality Focus
Software updates to PowerWorld and GE PSLF to automate data quality metrics in the Steady State and Dynamics Dashboard (SADD)
Adjustments to the SADD format are being made to make the output more user friendly
SDWG meetings will include more focused scrutinization and education of problem steady state and dynamic data issues

20. SDWG / Area Coordinator Activities
Generation Criteria Update
Effort to adjust the DPM generation modeling criteria to include larger Distributed Energy Resources (DER) that impact the system.
Current Plans
Review recommendations listed in NERC report on DER for direction on modeling and other issues to consider
Look at utilizing the DER_A model as part of the composite load model
Work with PDWG to determine specific data needed for their efforts
Test various MW thresholds for modeling DER to minimize power flow and transient concerns
Consider modeling changes that would allow efficient post processing options as a short term solution or as an alternative

21. Jonathan young young@columbiagrid.org
Questions
Jonathan young