Reliability Assessment Work Group
DRAFT Meeting Minutes
September 9, 2014
8:00 a.m.– 5:00 p.m. MDT
Salt Lake City, Utah
1. Welcome
Milorad Papic, RAWG Chair, called the meeting to order at 8:05 a.m. on September 9, 2014.
Attendees were asked to introduce themselves by name and affiliation, both in person and over the
phone/webinar. A list of attendees is attached as Exhibit A. Maggie Peacock reviewed the WECC
Antitrust Policy.
2. Approve Agenda
Milorad Papic introduced the proposed meeting agenda.
By consensus, the RAWG approved the agenda.
3. Probabilistic Workshop: History and Background – Milorad Papic
Milorad Papic started the RAWG Probabilistic workshop with a high level review od the History of
Loss of Load Probability (LOLP), GTRPM Methodology, Industry Reliability Metrics, and practical
examples of probabilistic in the industry.
The presentation is posted to the WECC Website.
4. Probabilistic Workshop: Western Interconnection
Presentations on probabilistic studies done in the Western Interconnection were provided by
Southern California Edison, Northwest Power Pool, and BC Hydro.
These presentations are posted to the WECC Website.
5. Probabilistic Workshop: NERC
Presentations on probabilistic studies done in North America were provided.
a. A Direct High Speed Calculation Procedure For Determining LOLE, LOLH, and EUE For Fossil,
Wind, and Solar Generation With A Suggested Procedure For Also Including Transmission
Constraints – Gene Preston
b. IEEE LOLE Best Practices Working Group – Brandon Heath, MISO
WESTERN ELECTRICITY COORDINATING COUNCIL
155 North 400 West, Suite 200
Salt Lake City, Utah 84103-1114
RAWG Meeting Minutes September 9, 2014
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These presentations are posted to the WECC Website.
6. Probabilistic Workshop: WECC/RAWG’s role – Matthew Elkins
Matthew Elkins provided a presentation on the next steps WECC is taking in regard to probabilistic
studies and the role RAWG will have in that future.
The presentation is posted to the WECC Website.
7. Reports:
Review of the following WECC and NERC activities were provided to the RAWG membership
a. NERC Long Term Reliability Assessment (LTRA) – No update
b. WECC Power Supply Assessment (PSA) – Maggie Peacock
c. WECC State of the Interconnection (SOTI) – Ben Aldous
d. NERC Probabilistic Assessment – Matt Elkins (10 minutes)
8. Group discussion on 2015 action items and activities
The group had a brief round table discussion on 2015 activities.
9. Review of New Action Items
1. Summary of the probabilistic workshop that occurred as part of the September 2014 RAWG
meeting.
a. Assigned To: Milorad Papic
b. Due Date: January 2015
2. Milorad Papic and Matthew Elkins to have an offline discussion on the possibilities of
running Matthew’s probabilistic study method using Idaho Power data
a. Assigned to: Milorad Papic, Matthew Elkins
b. Due Date: January 2015
3. Reliability Assessment department to research what Standard requirement impact the
assessments, reports and studies done by the department.
a. Assigned to: WECC Reliability Assessment Staff
b. Due Date: January 2015
4. Matthew Elkins to follow up with Baj at APS on his question concerning the practical
application Matthew’s probabilistic study method.
a. Assigned to: Matthew Elkins, Baj Agrawal
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b. Due Date: January 2015
Provide follow up with the data/reasoning behind CA/MX lower than summer winter
margin.
a. Assigned to: WECC Reliability Assessment Staff
b. Due Date: January 2015
Presentation and round table discussion about the PSA building block methodology.
a. Assigned to: WECC Reliability Assessment Staff
b. Due Date: January 2015
Round table discussion on past SOTI and RAWG's feedback to WECC staff on suggestions
and improvements for future reports.
a. Assigned to: RAWG
b. Due Date: January 2015
Presentation and round table discussion on the 2015 deadlines and RAWG meetings to
satisfy RAWG's goals and actions items.
a. Assigned to: Milorad Papic, Maggie Peacock
b. Due Date: January 2015
Elect vice chair
a. Assigned to: RAWG
b. Due Date: January 2015
10.Upcoming Meetings
January 13, 2015 .......................................................................................Salt Lake City, Utah
11. Adjourn
Milorad Papic adjourned the meeting without objection.
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Exhibit A: Attendance List
Milorad Papic ............................................................................................................................ Idaho Power
Vishal Patel ...............................................................................................................................................SCE
Gene Preston ................................................................................................................................. Presenter
Nan Dai ........................................................................................................................................... BC Hydro
Brandon Heath ......................................................................................................................................MISO
Rob Diffely ............................................................................................................................................... BPA
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