market trials open market participant call

http://nodal.ercot.com 1

Market TrialsOpen Market Participant Call

Weekly Kick Off

Aug 30, 2010


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.


This Week’s Activities

• RTM / LFC– Submit Energy Offer Curves representative of a post go-Live scenario– Next Full System Market and Reliability Test will begin on 9/12/2010

• This test will be 48 hours total• Testing times will be 2:00 PM on 9/12 through 2:00 PM on 9/14• ERCOT will begin making calls to QSEs where problems are found 2 hours prior to the

test start• If there are updates to your contacts (especially during the overnight hours, please

send those to [email protected]. – GREDP reports will begin being distributed today

• DAM / RUC– Week 18 (of phase 5): DAM will run 3 times this week for operational days

8/31/2010 through 9/2/2010– DRUC will continue to run with each DAM (ask that QSEs continue to

update COPs based on actual resource plan)– HRUC will occur on a limited basis around the clock– Submit a realistically large number of CRR Offers to the Day-Ahead

Market, on August 30 and 31, 2010 for Operating Days August 31 and September 1, 2010.

• CRR– 08/30/2010: September invoices posted to MIS by 23:59:59– ERCOT will be adding an auction for October per the 168-Hour handbook.

Details on this will be provided at the Friday call

• Outage Scheduler– Verification and synchronization of outages effective in September and Dec 1

and later– REMINDER: all outages effective for September should be entered and

verified no later than EOB today– REMINDER: all outages effective Dec 1, 2010 and later must be entered and

verified no later than 9/17/2010. Once complete send an email confirmation to [email protected].

Week 18Note: Dates are DAM execution days 8/30 – 9/1

ObjectiveNetwork Constraints Included

DAM 3x week

DAM submissions No guardrails

COP UpdatesReflect Zonal

Resource Plan

DRUC W/ each DAMHRUC LimitedWRUC 1 x weekSASM As neededOp Scenarios DAM Fail


Follow-ups / Special Topics

• Next week’s Monday Call will be re-scheduled for Tuesday 9/7/2010 due to the holiday

• Reminder: MRS #6 will occur on 9/1/2010 from 2:00 PM – 5:00 PM– This will be a WebEx only Seminar– Details are available and posted at:

http://www.ercot.com/calendar/2010/09/20100901-MT1

• 168-Hour Test– Details to be review at MRS #6– Market Notice will be distributed this week detailing the WebEx information

for the daily Market calls that will occur during the test– Reminder: Dates of the test are 09/08/2010 – 09/15/2010– Reminder: The Closed Loop / LFC portion of the test will occur Sunday,

09/12/2010 2:00 PM – Tuesday, 09/14/2010 2:00 PM


Load Resources Deployment/Recall Reminder

• Day 1 (8/30) – QSEs with Load Resources should submit AS Offers and AS self-schedules into the Day-Ahead Market on 8/30 for Operating Day 8/31. – QSEs should reflect DAM AS awards and self-schedules in their COP

prior to DRUC– After DRUC, ERCOT will create Group 1 & Group 2 deployment stacks

and publish them to the MIS Secure Area => Grid => Generation => Load Resource Portlet => “Group 1 and Group 2 Load Resources for RRS” report

• Day 2 (8/31) – Test begins at 9AM and concludes at 11:30AM – Deployment messages will be send out to Group 1 and Group 2

resources along with appropriate VDIs– Detailed script has been distributed to all QSEs with Load Resources– Results will be reviewed on the Friday Market Call after ERCOT staff

evaluates the results of the test

• Contact [email protected] with any questions.


Market Trials40-Hour (Aug 26-28) Full-

System and Market Reliability Test Updates

August 26, 2010

http://nodal.ercot.com

Approximate 40-Hour Test Timeline – Aug 26

Date Time(CDT)

Event

8/26 7:30 • Pre-test meeting for Nodal Support Staff

8:00 • Hotline call by ERCOT Operators to announce the 12:00 test start time

• Kick-off of the Market WebEx• Market Notice to be sent out with the test start time• Operators to start using OC3s to manage congestion• Start troubleshooting period with QSEs

10:00 • Hotline call to QSEs/TOs to announce the start of the test

• ERCOT Operators begin switching QSEs to Nodal control

10:02 • First participating QSE completed switching to Nodal control

10:38 • Final participating QSE switched to Nodal control

• Hotline call to announce that all participating QSEs are on Nodal control

18:00-18:30 • ERCOT nodal staff transition to night staff


Approximate 40-Hour Test Timeline – Aug 27 – 28

Date Time (CDT)

Event

Aug 27 06:00-06:30 • ERCOT nodal staff transition back to day shift

18:00-18:30 • ERCOT nodal staff transition back to night shift

Aug 28 • Hotline call to announce that ERCOT will begin switching QSEs back to Zonal control

• ERCOT Operators begin switching QSEs back to Zonal control

01:14 • First participating QSE switched back to Zonal control

01:46 • Final participating QSE switched back to Zonal control

02:00 • All QSEs on Zonal control• Hotline call to QSEs/TOs to announce that the test has

concluded


40-Hour Test Completion Criteria – Initial Assessment

Overview – Completion Criteria• ERCOT will communicate an initial assessment of the following completion criteria

upon conclusion of the test :– The rolling CPS1 one minute average score must equal or exceed 100% during the test

period• Note that the CPS1 average will not take into account the periods where ERCOT is

transitioning to Nodal and then back to Zonal• Note that the CPS1 average will not take into account the periods where ERCOT is

performing system tuning– Hourly CPS1 Scores:

» Max: 180, Min: 84, Average: 146– There was only one hour in which the CPS1 score was less than 100 (HE

0100 on Aug 28th)– Zonal Commercially Significant Constraints (CSCs) and Closely Related Elements

(CREs) managed below thermal limits. West-North stability constraint was active in nodal during final 1 ½ hours of testing and was active in zonal during the transition period from nodal to zonal control

– Local Congestion managed below thermal limits Yes– Stability limits managed below transfer limits– No NERC Disturbance Control Standard (DCS) failure if applicable. No DCS failures

during the test– No LFC-SCED system issues that result in termination of the test. No LFC / SCED

failures– Procedural and software fixes have been verified to address lessons learned from

previous rounds of testing


Full System Market and Reliability Test Update: CP1 Score Update

18014684

Highest Hourly CPS1 Score:Average Hourly CPS1 Score:Lowest Hourly CPS1 Score:

Hour Ending Hourly CPS1 Score Comments8/26/2010 11:00 137 Transition Hour8/26/2010 12:00 1178/26/2010 13:00 1488/26/2010 14:00 1658/26/2010 15:00 1748/26/2010 16:00 1808/26/2010 17:00 1788/26/2010 18:00 1208/26/2010 19:00 1608/26/2010 20:00 1678/26/2010 21:00 1408/26/2010 22:00 1468/26/2010 23:00 1038/27/2010 0:00 1018/27/2010 1:00 1198/27/2010 2:00 1578/27/2010 3:00 1508/27/2010 4:00 1678/27/2010 5:00 1448/27/2010 6:00 150

Hour Ending Hourly CPS1 Score Comments8/27/2010 7:00 1468/27/2010 8:00 1288/27/2010 9:00 1798/27/2010 10:00 1448/27/2010 11:00 1418/27/2010 12:00 1418/27/2010 13:00 1548/27/2010 14:00 1548/27/2010 15:00 1588/27/2010 16:00 1678/27/2010 17:00 1408/27/2010 18:00 1628/27/2010 19:00 1698/27/2010 20:00 1568/27/2010 21:00 1448/27/2010 22:00 1198/27/2010 23:00 1268/28/2010 0:00 1448/28/2010 1:00 848/28/2010 2:00 119 Transition Hour

• 08/28/2010 CPS1 scores dropped to 84 due to Generators not following the process for shutting down

40 hour test


40 hour test


HDL approaching HASL

Approx. 1000MW NSRS deployed 15:45 – 18:00

40 hour test


Odessa constraint violated until 14:55; $2800 SP; similar

pricing as last test

40 hour test


40 hour test


•Price correction pending for zonal intervals with negative price – incorrect gen offset was used

40 hour test



Market Trials24-Hour (Aug 19-20) Full-

System and Market Reliability Test Updates

August 26, 2010


24-Hour Test (Aug 19- 20) –Results

• GREDP Analysis• The GREDP Results from the Aug 19-20 24-

Hour Test will be distributed beginning Aug 30th

• For this analysis; X=5%, Y=5 MW, and Z=10%

• Criteria:• Non-IRRs must have a GREDP less

than X% or Y MW for 85% of the intervals in which GREDP was scored

• IRRs must have a GREDP less than Z% or the output must be less than their expected output for 95% of the intervals in which GREDP was scored

Percent of Non-IRR Generation Resources that Met the Protocol Criteria

All Resources 90.73

Resources Providing Regulation 90.48

Combined Cycle Resources 95.08

Coal and Lignite Resources 92.50

Diesel Resources 100

Gas Steam (Non-Reheat Boiler) Resources 77.78

Gas Steam (Reheat Boiler) Resources 84.21

Gas Steam (Supercritical Boiler) Resources 60

Hydro Resources 76.47

Nuclear Resources 100

Simple Cycle (Greater than 90 MW) Resources 94.44

Simple Cycle (Less than 90 MW) Resources 92.31

Percent of IRRs that Met the Protocol Criteria 21.21%

Number of IRRs that had an Interval for which

GREDP was scored33

IRRs

Non-IRRs


24-Hour Test (Aug 19- 20) – Results

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