TSP Nodal Engagement
Market Participant Call
ERCOT
June 02, 2010
http://nodal.ercot.com
1
Antitrust Admonition
ANTITRUST ADMONITION
ERCOT strictly prohibits Market Participants and their employees who are
participating in ERCOT activities from using their participation in ERCOT activities
as a forum for engaging in practices or communications that violate the antitrust
laws. The ERCOT Board has approved guidelines for members of ERCOT
Committees, Subcommittees and Working Groups to be reviewed and followed by
each Market Participant attending ERCOT meetings. If you have not received a
copy of these Guidelines, copies are available at the Client Relations desk. Please
remember your ongoing obligation to comply with all applicable laws, including the
antitrust laws.
DISCLAIMER
All presentations and materials submitted by Market Participants or any other Entity
to ERCOT staff for this meeting are received and posted with the acknowledgement
that the information will be considered public in accordance with the ERCOT
Websites Content Management Operating Procedure.
http://nodal.ercot.com
2
Agenda
•
Update for Network Operations Model
•
•
NDSWG update
Planning Model activities
•
SSWG update
•
TSP Outage Scheduler activities
•
Transitioning to Nodal go-live
http://nodal.ercot.com
3
Market Trials 2010 Roadmap
http://nodal.ercot.com
4
2-Hour / 8-Hour LFC Test
Update
http://nodal.ercot.com
5
2-Hour LFC Test Update
2-Hour LFC Test Update
Test Activities
Approx Timeline
Market WebEx start
8:00 AM
ERCOT - MP pre-test troubleshooting period
8:00 AM - 11:15 AM
Test start
11:15 AM
Zonal-Nodal cutover
11:15 AM - 11:55 AM
System frequency controlled by nodal systems
11:55 AM - 12:25 PM
Nodal-Zonal cutover
12:25 PM - 1:00 PM
Test end
1:00 PM
Market WebEx end
1:15 PM
http://nodal.ercot.com
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2-Hour LFC Test Update
2-Hour LFC Test Update (continued)
Constraints (activated in both Nodal and Zonal)
Start Time
Garrott - Midtown OC3
10:45 AM
Loss of Greens Bayou - Gable and
Hardy - Crocket 138KV overloads
Midtown - Garrott 138KV - 102% of
317 MVA rating.
Bellaire Autotransformer OC3 Loss of Bellaire 345/138KV
11:45 AM
autotransformer 2 overloads
Bellaire 345/138KV autotransformer 4 101% of 600 MVA rating.
http://nodal.ercot.com
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2-Hour LFC Test Update
2-Hour LFC Test Update (continued)
Common ICCP Issues Identified/Solved During the Test

On/Off status incorrect for LBST/RBST points

Resource Status Codes (RSTs) coming in as SUSPECT




OFF RST being sent for units that were online and generating MW
RST of ON instead of ONREG being sent for units with REG Responsibilities
RST of ONREG being sent for units in hours where they had no REG
Responsibility
Non-zero LSLs being sent for WGRs


HSLs for WGRS being set to capacity rather than un-curtailed MW output
MPs updating REG Responsibilities slowly

RegUp & RegDown Responsibilities switched for one
another
AS Responsibilities not lining up between Nodal and Zonal (i.e., wrong AS Type
or wrong MW value)

http://nodal.ercot.com
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8-Hour LFC Test Update
– 8-Hour LFC Test Update
• Workshop to be held on Tuesday 6/8/2010 from 10am – 12pm
http://www.ercot.com/calendar/2010/06/20100608-MT
• Test will occur on the 6/16,6/17 or 6/18
– Announcement will occur 2 days prior to the operating day
• 8-Hour Approach Document is located at :
http://nodal.ercot.com/readiness/markettrials/rtm/index.html
http://nodal.ercot.com
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Update for Network Operations Model
http://nodal.ercot.com
10
Nodal Model Effort Activity
Operations
Model
(NMMS)
Topology
Processor
(Software)
NDSWG
Support
SSWG
& ERCOT
Development
ERCOT TAC Meeting - ROS Report
03/04/2010 Ken Donohoo
CRR
Model
Long Term
Planning
Model
SSWG
Support
SSWG
Support
11
Update for Network Operations Model
•
Network Operations Model Validation:
•
No change
•
24 of 28 TSPs have submitted confirmation that validation complete
•
Represents 99.9% of the modeled system equipment
•
Materials still available from last TSP validation workshop
•
•
http://www.ercot.com/calendar/2010/04/20100409-MTTSP
NMMS System Update
•
5/12/2010 – Citrix unavailable
•
•
Update on Performance Issues:
•
•
UPDATE: Problem with oracle appears resolved. No new database issue have surfaced.
Update: Issues with NMMS data templates and data consistency
•
•
UPDATE: Problem with CITRIX appears largely resolved. ERCOT will continue to monitor for
performance issues. Please contact NOMCRHelp@ercot.com if you have difficulties.
UPDATE: Partial fixes have been provided, some data consistency issues have been
addressed. Vendor believe that the patches already provided will prevent new invalid data
from being submitted, and that the main issue now will be the cleanup of an existing data
issues.
Update: Issues with PTC and NOMCR’s
•
UPDATE: Issues have been logged in the Vendors defect management tool, and currently
they are working on resolutions. No ETA has been provided.
http://nodal.ercot.com
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NDSWG Update June 2, 2010
• NOGRR034 – On ROS June agenda for vote. An alternate ERCOT
proposal to lower metrics to not include planned outages will also
be discussed.
• NPRR146 – On TAC agenda for vote tomorrow.
•
NDSWG is reviewing a draft ERCOT modeling expectations
whitepaper. There are TSP operational impacts contained in this
whitepaper that affect model coordination, Outage Scheduling,
Equipment energization and equipment in-service date management.
NDSWG having a special meeting to discuss whitepaper tomorrow
(6/3/2010).
•
Still having performance issues with NMMS.
Planning Model activities
Supporting Monthly CRR Auction
http://nodal.ercot.com
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Nodal Model Effort Activity
Operations
Model
(NMMS)
Topology
Processor
(Software)
NDSWG
Support
SSWG
& ERCOT
Development
ERCOT TAC Meeting - ROS Report
03/04/2010 Ken Donohoo
CRR
Model
Long Term
Planning
Model
SSWG
Support
SSWG
Support
15
SSWG Planning Model Activities
• Correcting Connectivity Node Groups
– May 28 TP output: 278 CNGs needing correction
• 36 CNGs left that ERCOT originally populated with numbers because they
could not be matched to an existing PSSE bus
• TSPs will correct these 36 by June 4
5/14
5/7
278
5/28
291
5/3
320
4/23
278
440
4/11
0
522
1063
4/5
540
2/26
4/2
892
3/5
863
757 3/27721
3/19
SSWG Planning Model Activities
• Status of missing IDs: Branches and loads
• Phase II Corrections: Area #, Zone #, Load ID, Branch ID,
Generator ID
– Due July 1
• New Topology Processor update delivered to ERCOT
– SSWG has submitted a System Change Request (SCR759) related to
the Topology Processor changes
• Will ask ROS for approval in July
• NPRR224 was recommended for approval by PRS, next step is
PRS IA review.
• Identifying important modeling issues
– Categorize these and determine if additional SCRs are necessary
SSWG Modeling Issues
Annual Planning Model related issues:
• Off-nominal transformers: TP not calculating impedances
correctly?
• Cap banks and reactors: Control mode in TP output is incorrect
in many cases
• Transformer modeling: 2 winding vs 3 winding
• No ratings on zero impedance line segments
• Ownership
• Loads and cap banks being collapsed to the correct CNGs
• Cap banks connected to distribution voltage
• FACTS devices
• Future versions of PSSE
SSWG Nodal Schedule
June – August
Make remaining changes to IMM prior to Planning Go-Live
June 4
Remaining 99XXXX and 8XXXXX CNG changes due to ERCOT
June 7
ERCOT to send spreadsheet with Phase II information
July 1
Phase II changes due to ERCOT
July
TSPs Complete changes based on TP enhancements
July 12-13
MOD/PMCR training
July 15-16
MOD/PMCR training
July 19-20
MOD/PMCR training
July 22-23
MOD/PMCR training
Aug
Compare TP output to SSWG 2010 summer peak case
Nov
Create 2012 summer peak case using TP and MOD
Dec – Feb 2011
Review, update, and modify TP/MOD process for case creation
Dec 1
Nodal Go-Live
Mar – April 2011
Assuming Nov test meets SSWG approval, begin work to create 12DSA using Nodal method
(email SSWGData@ercot.com to reserve spot)
TSP Outage Scheduler activities
http://nodal.ercot.com
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TSP Outage Scheduler
• Qualification activities in-flight
• Weekly Market Call every Friday 9-9:30am
• http://www.ercot.com/committees/nodal/mt/index
• Handbook for Outage Scheduler Activities
• http://nodal.ercot.com/readiness/markettrials/os/index.html
• OS Qualification Status
• No change
• 23/25 TSPs
• 99.8% complete Equipment Share
http://nodal.ercot.com
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Transitioning to Nodal Go-Live
http://nodal.ercot.com
22
Transition Plan
Nodal Go-Live
Zonal
Process
168-hr Testing
Transition
Process
Nodal
Production
Process
Jun
NOMCR
Processing
Deadline for
Model Changes
July
Aug
Se
p
Oct
Market Validation
(Market
Participants)
Initial Validation
(ERCOT)
Public
Posting
Nov
De
c
Final Validation
(ERCOT)
Jan
Cases Used in
Production
Transition Plan – Days of Notice Requirements
Deadline for Nodal
Model Change
Submissions
06/04/10
06/21/10
Zonal Deadline for
Model Change
06/22/10
07/02/10
Date Nodal Model is
Days of Notice
used in Nodal Production
Required
07/01/10
9
Current Process
07/14/10
12
07/01/10
07/01/10
07/15/10
07/15/10
07/15/10
07/15/10
08/02/10
08/02/10
08/02/10
08/02/10
08/16/10
08/16/10
08/16/10
08/02/10
08/18/10
09/01/10
09/10/10
09/15/10
09/24/10
09/30/10
10/06/10
10/13/10
10/20/10
11/01/10
11/10/10
11/17/10
32
48
48
57
62
71
59
65
72
79
77
86
93
Beginning of Transition
09/01/10
09/01/10
09/01/10
10/01/10
10/01/10
10/01/10
10/01/10
11/24/10
12/15/10
12/22/10
12/30/10
01/13/11
01/20/11
01/27/11
84
105
112
90
104
111
118
Nodal Go Live
Working Towards Go-Live
• Update on Frequency Model Load
•
•
Will start with bi-weekly loads after the 6/16 load
•
Closely aligned with Zonal Model load
NPRRs/OGRRs in discussion
•
NOGRR034- Telemetry Performance (June ROS)
•
NPRR146- ICCP Telemetry/Network Model (May ROS)
•
NPRR219- Alignment NPRR for Outages
•
•
Special PRS meeting Apr 19, NDSWG April 20 (PRS)
NPRR224- Remove Dynamic Ratings for Annual Planning Model (ROS)
http://nodal.ercot.com
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