1. SRWG Chair Report March 2015 WECC HQ
John Gross SRWG Chair
SRWG Chair Report
March 2015
WECC HQ

2. Topics Where are we headed? Data Preparation Manual status
MOD-032 implementation plan and associated DPM
2015 Base Case Compilation Schedule status
Base Case Coordination System
Model Implementation Schedule
Renewable generation dispatch
Balancing Authority Area representation
WECC contingency analysis
RAS Workshop and File Format specifications
MOD-033 coordination with MVWG

3. Where are we headed? What is the point of SRWG’s efforts?
Provide data to support study requirements
Changes on their way (or already here)
Node-breaker representation
RAS and contingency modeling
Relay emulation
How should we react?
Develop staged implementation plans
Get ahead instead of behind

4. Data Preparation Manual
TSS approved 4 digit zone numbers
Also included technical writer edits
Rev 4
4 Digit Zone addition
Non-BCCS
Rev BCCS-4
4 Digit Zone addition
Rev BCCS-5
MOD-032 Implementation
BCCS
DPM Revisions

5. MOD Implementation
TSS approved SRWG’s implementation plan and associated DPM
Focus will begin shifting to Planning Coordinators
How to collect data from non-registered entities?

6. 2015 Base Case Compilation Schedule
TSS approved revisions to 2015 schedule
Load description
Shifting summer operating cases
Separate approved item to replace TEPPC case with 10 year light load case
Requested by WestConnect, NTTG, ColumbiaGrid, and California ISO

7. Base Case Coordination System
Patch provided following December meeting did not resolve all critical issues
Siemens has hired a consultant to support troubleshooting issues
Further update?

8. Model Implementation Schedule
New approved models
ccomp – cross current compensation
Need to add to implementation schedule?

9. Renewable Generation Dispatch
TSS is requesting renewable generation to be dispatched to non-zero
Not realistic for all renewables to be off
When end-users turn them on, models cause problems
Represent realistic output for scenario

10. Balancing Authority Area Representation
TSS and MVWG support including BA representation in base cases
Similarities to Westwide System Model
More closely mimics actual system controls
Comparison to L&R submittals
Implementation pending software development and utilizing the new versions
Or changing existing Areas in cases to BA’s, no software changes required

11. BA Representation Demo
Create new Area
Move buses to new Area by filter
Select an Area slack bus
Change control to Area Slack
Set interchange for new Area to ACE Error
Attempt to match existing solution
Unspecified interchanges absorbed at slack

12. WECC Contingency Analysis
WECC Staff is continuing to run contingency analysis on operating base cases
SRWG will support data collection efforts as needed

13. RAS and Contingency Modeling
April 2, 9-11 MDT (Webinar)
Intro to RAS modeling and RAS/contingency file format
Types of RAS that can be modeled
May (Salt Lake)
In person workshop
Create models of your specific RAS for use
PE continuing education credits available

14. MOD-033-1 Implementation Plan
SRWG was directed to work with MVWG to develop an implementation plan
Compare planning power flow model to state estimator
Compare planning dynamic model to actual system response
Merging WSM and planning model?

15. Questions?