1. After-the-Fact Workgroup Update Sheryl Welch
ISAS Meeting
January 12-13, 2016
Phoenex, AZ

2. ATF Tagging Guidelines
Webinar was held November 5, 2015.
Object was to have specific reasons for ATF Tags.
Following changes were made.
Reasons to Create ATF Tags
ATF tags are used by Balancing Authorities (BAs or CAs), Transmission Service Providers (TSPs), and Scheduling Entities (SEs) to accurately reflect a schedule which was coordinated and controlled by a BA’s Energy Management System (EMS) and Automatic Generation Control (AGC) system during real time system operations, but was not properly tagged.
Missing or incorrectly used CA (Balancing Authority), TP (Transmission Provider), or SE (Scheduling Entity)
Missing adjacencies or incorrect Point of Receipt or Point of Delivery segment(s)
When there is an Emergency and WIT system goes down.
ATF tags shall not be used for market driven manipulations.
NOTE: When an ATF tag is needed to correct a dynamic tag, the tag type is normal.

3. ATF Tagging Guidelines (Cont’d)
Posted for Comments on December 9, 2015.
Three Comments Received.
ATFWG Meeting/Webinar was held yesterday.
Discussed Inadvertent and how it affects ACE.
Discussed whether or not PeakRC was going to accept ATF changes.
Discussed the comments that were received.
APS question—If a unit is off line, but energy was tagged from that unit but generated from its sister unit is that a reason for a WIT change? Consensus was No.
NWMT—Section 1.4 Definitions: WIT – Western Interchange Tool. Should be WECC Interchange Tool (Change made)

4. ATF Tagging Guideline (Cont’d)
BANC/SMUD/TANC—Only bullets one, three, and four are required in the Attachment 1. If there are any instances in which a tag had a missing or incorrect BA, TP, SE, Adjacency or POR/POD which needed to be corrected, then those corrections should only be made under the provision of the bullet one.

5. ATF Tagging Guidelines (Cont’d)
Reasons to Create ATF Tags
ATF tags are used by Balancing Authorities (BAs or CAs), Transmission Service Providers (TSPs), and Scheduling Entities (SEs) to accurately reflect a schedule which was coordinated and controlled by a BA’s Energy Management System (EMS) and Automatic Generation Control (AGC) system during real time system operations, but was not properly tagged.
Missing or incorrectly used CA (Balancing Authority), TP (Transmission Provider), or SE (Scheduling Entity)
Missing adjacencies or incorrect Point of Receipt or Point of Delivery segment(s)
When there is an Emergency and WIT system goes down.
ATF tags shall not be used for market driven manipulations.
NOTE: When an ATF tag is needed to correct a dynamic tag, the tag type is normal.

6. ATF Tagging Guidelines
Decision was to have a one or two-day workshop to focus on all the ATF tag issues, with PEAKRC, WECC, ATFWG.

7. WIT Schedule Change Request Form
Previous changes to WIT Schedule Change Request Form
Converted to Excel Spreadsheet
Added Date and Lead Party
Changed from WECC to WIT Schedule Change Request Form
New Changes to the Form for tracking purposes only
Added two columns
ATF Created (Y/N)
Number of ATF Tags Needed
Added For ATF Chair Use Only Box
Added “….and and cc the ATFWG Chair”
Note: Until we hear different, form is to be submitted to both WECC & PEAK

8. WIT SCHEDULE CHANGE REQUEST FORM

9. ATF WIT Changes
REASON
2015
2014
2013
2012
Incorrect Path or Sched Entity 66 56 82 72
Scheduling or Adjusting Error 21 20 16 36
System Error 3 12 27
Generation/Meter Adjustment 50 40 26 31
Incorrect Source / Sink 13
203 11
Curtailment Error
Incorrect PSE 8 5
RSG Tag Error 9 18
Integration Error 1 2 4
Tag Type Correction 49
Incorrect Tag 68
WIT not match OAIT Tag
Oversold
Unknown
TOTAL
236
383
199
231
Current MW
5840
22662
1679
12896
Changed to MW
2301
9614
1365
7691
Total MW Change
3539
13048
314
5205

10. Updating ATFWG Contact List
Last update was November 1, 2015.
If your company has any ATF personnel changes, please send the following information to
Specify:  Active ATFWG Member or Distribution Only
Name
Company
Phone
Fax

11. QUESTIONS