profiling working group january 11, 20061 pwg update report by ernie podraza of reliant energy ercot...
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January 11, 20061
Profiling Working GroupProfiling Working Group
PWG Update Report
By
Ernie Podrazaof Reliant Energy
ERCOT PWG Chair
for
RMS Meeting
January 11, 2006
January 11, 20062
Profiling Working GroupProfiling Working Group
Annual Validation 2005 Status - Business
• All TDSPs have submitted their transactions.
• All TDSPs have meet the 99 percent requirement.- (LPG 11.4.1 steps 11 and 12)
• Business Complete.
This slide is a place holder of what I hope is the case to report.
January 11, 20063
Profiling Working GroupProfiling Working Group
Annual Validation 2005 Status - Residential
• All TDSPs have submitted their transactions per the RMS resolutions.
• All TDSPs are waiting on TAC and BOD approval of 2005 annual validation modifications per the RMS resolutions for the partial list of transactions so 2005 annual validation can be considered complete.
This slide is a place holder of what I hope is the case to report.
January 11, 20064
Profiling Working GroupProfiling Working Group
Annual Validation 2006 Status - Business
• Previously reported two changes under consideration for load factor calculations;
- kWh minimums, and- exclusion of zero kWh readings.
• December 15, 2005 the PWG by consensus has dropped these two suggested changes to annual validation because the ERCOT Staff analysis indicated almost nil affects.
• Market benefits to expenses are not warranted.
January 11, 20065
Profiling Working GroupProfiling Working Group
Annual Validation 2006 Status - Residential
• Previously reported two changes under consideration for winter ratio calculations;
- Weather normalizing the trigger points, and- different trigger points per weather zone.
• December 15, 2005, the PWG by consensus has placed these two suggested changes to annual validation on hold pending market review of “Option 2” change in profile id assignment responsibility and subsequent market consideration of the new residential assignment algorithm developed by ERCOT Staff.
January 11, 20066
Profiling Working GroupProfiling Working Group
“Option 2” - Residential
“Option 2” is moving a portion of the residential Load Profile ID assignment responsibility in the annual validation process from the TDSPs to ERCOT Staff, whereby the Load Profile Type is calculated annually at ERCOT and the information passed to each TDSP and/or Muni-COOP.
January 11, 20067
Profiling Working GroupProfiling Working Group
“Option 2” - Residential
• Once per year, ERCOT calculates the Load Profile Type and provides a file of changes to each TDSP.
• Each TDSP takes the file and creates appropriate 814_20s, and updates their systems.
• TDSPs are still responsible for the Load Profile ID assignment for new accounts and any updates needed for normal business.
January 11, 20068
Profiling Working GroupProfiling Working Group
“Option 2” - Residential
1. Determine the Profile Type CodeA. Select the Profile Group
Select the appropriate Profile Group from the following: NM (for Non-Metered), RES (for Residential), or BUS (for Business).
B. Select the Profile SegmentValid Profile Segments are dependent upon the Profile Group and other factors. Please see the Segment Assignment tab.
Valid Segments for NM are: LIGHT and FLAT.
Valid Segments for RES are: LOWR and HIWR.
Valid Segments for BUS are: NODEM, LOLF, MEDLF, HILF, and IDRRQ.
C. Concatenate the Profile Group and Profile Segment to form the Profile Type CodeConvert the Profile Group and Profile Segment to one field, e.g., BUSLOLF.
January 11, 20069
Profiling Working GroupProfiling Working Group
“Option 2” - Residential
(1)
Group SegmentProfile
Segment
Profile
Group
Profile Type Code
(1) (1)
Group SegmentIDRNIDR
Meter Data Type Code
(3)
(1)
Group SegmentTOUnNoTOU
Time-Of-Use Code
(5)
Coast
East
FWest
North
West NCent
SCent
South
Weather Zone Code
(2)
(1)
NWS
Weather Sensitivity
Code(4)
Example: RESHIWR_NCENT_NIDR_NWS_NOTOU
January 11, 200610
Profiling Working GroupProfiling Working Group
“Option 2” - Residential
• Precedent for TDSP lists;
1) Protocols Section 11.4.3.1 Weather Responsiveness Determination … “ERCOT shall produce a report that contains the ESI IDs requiring profile code modifications and shall publish the report via the MIS.
TDSPs shall successfully complete Weather Sensitivity Code modifications (Profile ID changes) no later than sixty (60) days after the ESI ID appears on the ERCOT report.”
2) RMS November email voting item, “The email vote to authorize 2005 Residential Annual Validation transactions for those ESI IDs for which ERCOT’s analysis shows such update would result in a more representative profile was APPROVED.”
January 11, 200611
Profiling Working GroupProfiling Working Group
“Option 2” - Residential
PWG by consensus agrees to change the responsibility of Residential Profile ID assignment calculation of Profile Type for Annual Validation from the TDSPs to ERCOT Staff.
Upon approval of this recommendation by the appropriate TAC committees, the appropriate PRR and LPGRR shall be written. After approval, the appropriate Decision Tree update shall be issued.