ATFWG Meeting Minutes August 26, 20152

1.  Welcome

Sheryl Welch, After The Fact Work Group (ATFWG) Chair, called the meeting to order at 9:05 a.m. on August 26, 2015. A quorum was present for the conducting of business. A list of attendees is attached as Exhibit A. Craig Williams reviewed the WECC Antitrust Policy.

The attendees were asked to introduce themselves.

2.  After the Fact (ATF) Adjustments

There was discussion about After the Fact (ATF) adjustments for generators that have gone offline. One opinion was that generators should not be zeroed as an ATF tag, but adjustment should be made to reflect what actually occurred. The result would be a generator imbalance, not an energy imbalance. There have been 26 Generation/Meter Adjustments this year. It was proposed that those not be approved or changed. The ATFWG needs to define the difference between an error that should be fixed and an error that should not.

The ATF Tagging is meant for one time situations to present an accurate look of what happened. This does not hold true in creating a tag for curtailment or congestion management.

There was discussion about whether human error is a valid reason for an ATF tag. Human error affects some tags as do force majeure events. General consensus was that improper balance is not a good reason for an ATF tag.

The ATFWG used to have specific explanations for tags, but the current guidelines are vaguer now and people are not trained. The AFTWG needs to put specific guidelines for when tags are accepted. The best solution would be to have specific guidelines approved, but past attempts have met resistance. This item will be taken this discussion to the larger group this afternoon to get more opinions.

3.  Adjourn

Sheryl Welch adjourned the meeting without objection.
Exhibit A: Attendance List

Kathy Anderson Idaho Power Company

Ernesto Blanco Tucson Electric Power Company

Patrizia Boden Powerex

Glenda Bracamonte Tucson Electric Power Company

Billy Cutsor Municipal Energy Agency of Nebraska

Rene De La Cerda California Department of Water Resources

Deanna Doney PacifiCorp

Jeri Farrow El Paso Electric

Marilyn Franz NV Energy

Carlos Gomes

Laura Hatfield Puget Sound Energy

Craig Henry Alberta Electric System Operator

Sabrina Martz Black Hills Power

Sueyen McMahon Los Angeles Department of Water and Power

Jody Melo Turlock Irrigation District

Brittany Millard Municipal Energy Agency of Nebraska

William Moojen Public Utility District of Snohomish County

Paul Rice WECC

Matt Richard Portland General Electric Company

Amy Vercella Northwestern Energy

Arvella Witherspoon Idaho Power Company

Ira Witherspoon Western Area Power Administration

Lauretta Zielke Tri-State Generation

Western Electricity Coordinating Council