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Market Trials DAM/RUC/SASM

Market Trials DAM/RUC/SASM. Weekly Update. July 09, 2010. Antitrust Admonition. ANTITRUST ADMONITION

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Market Trials DAM/RUC/SASM

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  1. Market TrialsDAM/RUC/SASM Weekly Update July 09, 2010 http://nodal.ercot.com 1

  2. 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

  3. Agenda • DAM/ RUC/SASM summary • QSE Activities for Next Week • General Reminders/Updates • Environment Report • Outages • Known Issues • Special Topic • Question and Answers / General Discussion • Appendix ERCOT asks that Market Participants log into the WebEx session using their company name and then their name. This will allow ERCOT to take roll-call offline. http://nodal.ercot.com 3

  4. Market Trials 2010 Roadmap http://nodal.ercot.com 4

  5. Submission Overview for Friday July 2 DAM submission overview • 210 QSEs participated for Op Day 7/3 • Energy Bids in the range of 26,384 to 41,256 MW per hour • Cleared 18,138 to 23,909 MW energy per hr • Cleared 16,116 to 18,292 PTP bids per hr • Four major Load Zone prices ranged from $26.50 to $43.87 http://nodal.ercot.com 5

  6. Submission Overview for Tuesday July 6 Submission overview • 212 QSEs participated for Op Day 7/7 • Energy Bids in the range of 26,384 to 41,256 MW per hour • Cleared 20,574 to 24,910 MW energy per hr • Cleared 13,374 to 16,227 PTP bids per hr • Four major Load Zone prices ranged from $25.00 to $48.59. http://nodal.ercot.com 6

  7. Submission Overview for Wednesday July 7 Submission overview • 220 QSEs participated for Op Day 7/8 • Energy Bids in the range of 28,104 to 45,920 MW per hour • Cleared 20,341 to 29,966 MW energy per hr • Cleared 13,289 to 16,052 PTP bids per hr • Four major Load Zone prices ranged from $28.49 to $79.65. http://nodal.ercot.com 7

  8. Submission Overview for Thursday July 8 Submission overview • 206 QSEs participated for Op Day 7/9 • Energy Bids in the range of 30,319 to 55,797 MW per hour • Cleared 21,874 to 36,732 MW energy per hr • Cleared 15,019 to 16,969 PTP bids per hr • Four major Load Zone prices ranged from $31.07 to $250.00. http://nodal.ercot.com 8

  9. RUC Execution Overview for this week RUC overview for the week: http://nodal.ercot.com 9

  10. Next Week’s Activities Next week – Op Days are 7/13-7/17 DAM executing on 7/12-7/16 • No guardrails - Bids/offers should be reasonable • COPs should reflect zonal throughout the week. We are requesting no COP updates as a result of nodal market processes. • Operational Scenarios: • No operational Scenarios scheduled http://nodal.ercot.com 10

  11. Next Week’s Activities DRUC executing on 7/12-7/16 after DAM WRUC, HRUC and SASM executing on 7/12-7/16 • HRUC and SASM • WRUC executing on Monday and Wednesday • HRUC will be executed on Tuesday, Wednesday, Thursday and Friday at 1 pm (target Operating Hours will be the balance of the Op Day) • May be run for additional, non-supported hours • SASM will be opened if needed based on system conditions Next week • Outages will be ignored July 1-13 for internal Outage Schedule testing • Again, next week ERCOT may do workarounds outside the normal business process to sidestep any issues that arise. Furthermore, we may approve the results of the RUC software even if the result is operationally unreasonable. The purpose of this is to exercise settlement and billing determinants related to RUC. http://nodal.ercot.com 11

  12. General Reminders/Updates • Network Model Update • An updated settlement points and MP short name list was posted for the 6/15 load at http://nodal.ercot.com/readiness/markettrials/index.html • Next scheduled load is schedule for 7/14, but will likely be moved due to the LFC test. • Reminder regarding External Interfaces Specification v1.19M • Posted at http://nodal.ercot.com/readiness/sandbox/index.html • Targeted for delivery on 7/9 • EXTENDED July 1-13 outages will be disregarded in the various processes. • ERCOT will be performing Outage Scheduling testing during this period. • ERCOT will be continuing to run WRUC • Please be aware that WRUC requires valid COP data seven days out in order to have a good solution during the study period • ERCOT will continue to announce on the Market Call the operating days for the next week • Less operating days during LFC test weeks • August is open to run operating days as necessary to complete verifications • Updated version of the DAM Market Trials Handbook has been posted • http://nodal.ercot.com/readiness/markettrials/dam/ http://nodal.ercot.com 12

  13. General Reminders/Updates • Day Ahead Market (DAM) and Reliability Unit Commitment (RUC) changes to support additional LFC testing • Will be run for LFC Operational Dates during the weeks of LFC testing • A focused input day will be included where MPs will submit trades, bids, offers and COPs that more representative of the post go-live market • On non-LFC testing weeks: • DAM and RUC will continue to run up to 5 times weekly • Friday market calls will serve to communicate any changes to this schedule and confirm activities http://nodal.ercot.com 13

  14. Support Metrics Market Participant Inbound Questions Last Week This Week ERCOT HOLIDAY * This week, 10 out of 77 questions were responded to outside of the 24 hour time frame. http://nodal.ercot.com 14

  15. Day-to-day operations summary: Planned / Unplanned Outages • Planned Outages • 07/09/2010 6:00 P.M. – 10:00 P.M. • Availability of the following application services will be affected as a result of software migrations being planned during this period ( Note: external interface specification 1.19M will take into effect upon completion of this migration ) • EWS ( Web Services) • MM UI • OS UI • CRR • Unplanned Outages • N/A. http://nodal.ercot.com 15

  16. Environment Report-Known Issues Full DAM/RUC/SASM known issues list will post every Friday night at http://nodal.ercot.com/readiness/markettrials/dam/index.html New DAM/RUC/SASM known issues • Found an issue with notifications not being sent out in conjunction with the Notice Builder message via API • Issue was investigated and a fix implemented • May see some test notifications while verifying the fix in production http://nodal.ercot.com 16

  17. Summary of DAM/RUC/SASM market trials Next week: - Focus on quality will continue to supersede timelines (i.e., may re-run DAM/RUC late to get better solution) • ERCOT continuing to address data issues • In short-term continue to need COPs to reflect actual plans (to compare with zonal) • More communication between ERCOT and MPs to address submission/data issues • We will continue to contact QSE periodically to address zonal/nodal COP inconsistencies to assist QSEs in identifying mismatches. http://nodal.ercot.com 17

  18. Q&A Q&A / Open Forum http://nodal.ercot.com 18

  19. Appendix Appendix • AS Info for the week • Pre- and post-DAM reports • Special Topics http://nodal.ercot.com 19

  20. Submission Overview for June 25 http://nodal.ercot.com 20

  21. Submission Overview for June 28 http://nodal.ercot.com 21

  22. Submission Overview for June 29 http://nodal.ercot.com 22

  23. Submission Overview for June 30 http://nodal.ercot.com 23

  24. Submission Overview for July 1 http://nodal.ercot.com 24

  25. Other Note: • All transactions will be supported. • Trade submission and confirmation (Energy, Capacity and AS Trades) may be exercised at this time. • DAM notifications will be active. • Phase 2 Validation process will be active and supported. • QSE transactions that do not follow the guidelines are subject to cancellation at ERCOT’s discretion. • ERCOT may run DAM on non-supported days. No QSE participation is requested, and ERCOT staff will not be available to answer questions regarding the outputs of these non-supported processes. • CRR information from the market trials auction will be integrated into the market system. CRR Offers (by NOIEs) must contain CRR IDs from this auction in order to be valid. http://nodal.ercot.com 25

  26. Report Postings Posted by 6 am: • Ancillary Services (AS) Plan • Load Ratio Shares (these will be static based on Zonal production data as of October 16, 2009) * • AS Obligations * • Wind Generation Resource Power Potential (WGRPP) forecast * and Aggregated WGRPP forecast • List of all Settlement Points and the mapping to Electrical Buses • Load forecasts for ERCOT system, Weather Zones and Load Zones • Load forecast distribution factors • Distribution Loss Factors and forecasted Transmission Loss Factors • Weather assumptions * Denotes MIS Certified reports http://nodal.ercot.com 26

  27. Report Postings Posted after each DAM: • Awards (AS Offers, Energy Offers, DAM Energy-Only Offers, DAM Energy Bids, CRR Offers, and PTP Obligation Bids) * • DAM Clearing Price for Ancillary Services (MCPC) • Day-Ahead hourly Settlement Point Prices (SPPs) • Day-Ahead hourly Locational Marginal Prices (LMPs) • Shadow Prices • Quantity of AS Offers • Aggregated AS Offer Curve • Total quantity of energy (in MWh) bought and sold in DAM See DAM Handbook for a list of all DAM/RUC/SASM reports available starting in Phase 4.0 - http://nodal.ercot.com/readiness/markettrials/dam/index.html. See MIS Handbook for a comprehensive list of reports available - http://nodal.ercot.com/readiness/markettrials/mis/index.html. * Denotes MIS Certified reports http://nodal.ercot.com 27

  28. Special Topics Phase 2 Validation reports and process • Phase 2 validation re-evaluates all submitted transactions at 7 am in the day-ahead with updated information, such as AS Obligation, CRR ownership, credit limits, etc. • If there is a validation error, ERCOT will cancel the transaction • We send a notification that a Phase 2 report is available for a particular transactions type, and notification containing the cancellation for the transaction. • You can query for the Phase 2 report via web service or on the Reports page of the Market Manager in order to view the reason for the cancellation. • Correct and resubmit prior to 10 am. • Note that submissions are locked out during the Phase 2 process, which is currently taking about 10 minutes to complete. http://nodal.ercot.com 28

  29. Special Topics Day-Ahead Self Commitment DAM clearing engine treats your TPO differently if you submit Startup and Minimum Energy (SU/ME) costs as $0 vs. NULL • If you submit with SU/ME as $0, DAM engine treats this as a normal offer where the QSE is not requesting SU/ME to be covered. HSL/LSL constraints will be respected. Also, if you are selected for an online Ancillary Service, you will also be awarded at least LSL on your offer curve. • If you submit with SU/ME as NULL, DAM engine is signaled to ignore the HSL/LSL constraints for the resource. In this scenario, the offer curve submitted will start at 0 MW and go to the max MW quantity desired – again, DAM will ignore LSL/HSL constraints. If the offer curve submitted doesn’t start at 0 MW, it will be extended to 0 MW by DAM. If the resource is selected for Ancillary Services, no requirement to also award TPO at LSL (since no LSL constraint honored in this case). http://nodal.ercot.com 29

  30. Special Topics Day-Ahead Self Commitment The purpose of the NULL: It allows a QSE to use part of a Resource to serve its own load, and then offer in the rest to the DAM and enable the offer to be co-optimized with its AS Offer. Example: A Resource has 100 MW LSL and 400 MW HSL, and the QSE has already committed 300 MW of the Resource through some other mechanism. The QSE wishes to offer the remaining 100 MW, which would otherwise be ignored due to the 100 MW LSL. Then going into real-time, so QSEs will need to update their TPO to cover the full capacity of the resource, from LSL to HSL, rather than from 0 MW. TPOs for real-time should always cover the entire capacity of the resource to avoid the proxy curve creation. To do the TPO update if the resource is awarded in the DAM, the QSE must provide a reason code, which is DSCM. This functionality came about due to TPTF subgroup on the issue. It has not yet been added to the protocols but will during our protocol traceability/cleanup effort. http://nodal.ercot.com 30

  31. Special Topics Bid/Offer efficiencies • ERCOT has identified efficiencies in Bid/Offers submission with regard to the format of submission • This applies to all transaction that use a Bid ID or an Offer ID (Energy Only Offers, Energy Only Bids, PTP Obligation Bids, and CRR Offers) • Preference is for QSEs to submit the same Bid/Offer ID for each hour in the submission, versus submitting a different Bid/Offer ID for every hour. The market system treats the submission the exact same way, regardless of which format is used • Using the preferred format will optimize DAM system performance • For xml examples detailing this issue, please view a document that will be posted along with this presentation on the calendar page at http://www.ercot.com/calendar/2010/04/20100409-MT • This was discussed at NATF 4/6, we send an email to the nodal technical contacts that we have on file for all QSEs, and we will add it to the External Interfaces Specification http://nodal.ercot.com 31

  32. Special Topics JOUs and COP consistencies • In DAM, if the different owners of the jointly-owned unit have submitted conflicting COP statuses for the current day, online statuses will overwrite offline statuses when DAM is determining the initial condition of the unit (i.e., is the unit online or offline at the start of the next operating day). • In RUC, if the different owners have conflicting COP statuses for the next operating day: • If any owner has OUT status for any hour then the unit is considered OUT. • If all owners have submitted a COP, and at least one of them has an online status in a particular hour then the resource status for the unit is online (unless any owner has OUT) http://nodal.ercot.com 32

  33. FAQ • EWS Notification Delivery & Network Firewall Configuration • EWS Notification deliveries are currently originating from the following ERCOT servers listed below. To meet system demand and scalability requirements, we will be adding additional servers to this mix. To prevent any service disruptions, as a result of addition of new servers, we recommend your network firewall rules be configured to allow traffic based on address range as opposed limiting them to specific IPs. • Current IPs in Play: • Recommended IP Ranges: http://nodal.ercot.com 33

  34. Supplemental Materials http://nodal.ercot.com 34 Slide 34

  35. Special Topic – Jointly Owned Units JOUs are modeled as a single physical unit • DAM uses the separate logical resources when evaluating energy and ancillary services, but Network Security Monitoring (NSM), which is a sub-process of DAM, must consider the physical unit. • http://nodal.ercot.com/docs/pd/ida/wp/sgrm/IDA041_White_Paper_for_Split_Generation_Resource_Modeling_v1.doc JOUs offering into DAM • Owners offer their share into the DAM separately, but the physical unit must be committed together • All owners have to offer in the unit (energy or AS) to the DAM or else it cannot be committed to any owner (one exception for a self-commitment scenario described below). DAM must make a commitment decision about the physical unit, which it cannot do without offers from all the owners. • Self-commitment examples (assume three owners) – remember that self-committing by submitting Startup and Minimum Energy Costs as ‘NULL’ (leaving them out of the submission altogether rather than submitting zeroes) signals the DAM software that it doesn’t need to make a commitment decision and to ignore resource constraints. • If two owners self-commit (startup/minimum energy costs are NULL) and the other submits nothing, the unit can be awarded without making a commitment decision. • If one owner self-commits, another submits a TPO with startup/minimum energy costs, and the third submits nothing, the unit cannot be awarded • If one owner self-commits, and the other two submit TPOs with startup/minimum energy costs, the unit can be awarded after making a commitment decision based on the resource constraints and the submitted startup/minimum energy costs. • Note that if self-committed, do not submit an OFFNS offer. That offer negates the self-commitment and the DAM software will not consider it as a self-committed resource (since the QSE is requesting ERCOT to evaluate the unit offline) http://nodal.ercot.com 35

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