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Market Trials DAM/RUC/SASM

Market Trials DAM/RUC/SASM. Weekly Update. September 3, 2010. 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

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Market Trials DAM/RUC/SASM

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  1. Market TrialsDAM/RUC/SASM Weekly Update September 3, 2010 http://nodal.ercot.com 1

  2. 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 2

  3. Market Trials 2010 Roadmap http://nodal.ercot.com 3

  4. Submission Overview for Friday August 27 DAM submission overview • 205 QSEs participated for Op Day 8/28 • Energy Bids in the range of 44,860 to 90,221 MW per hour • Cleared 30,707 to 55,868 MW energy per hr • Cleared 12,800 to 16,516 PTP bids per hr • Four major Load Zone prices ranged from $24.07 to $500.00 • Energy cleared 88.5% to 114.8% of the forecasted load. http://nodal.ercot.com 4

  5. Submission Overview for Saturday August 28 DAM submission overview • ERCOT Submitted bids/offers for Op Day 8/29 • Energy Bids in the range of 76,521 to 105,234 MW per hour • Cleared 45,970 to 52,985 MW energy per hr • No PTP bids • Four major Load Zone prices ranged from $127.65 to $154.09 • Energy cleared 93.6% to 176.0% of the forecasted load. http://nodal.ercot.com 5

  6. Submission Overview for Sunday August 29 DAM submission overview • ERCOT Submitted bids/offers for Op Day 8/30 • Energy Bids in the range of 76,471 to 105,184 MW per hour • Cleared 46,029 to 52,310 MW energy per hr • No PTP bids • Four major Load Zone prices ranged from $124.75 to $178.50 • Energy cleared 84.1% to 139.9% of the forecasted load. http://nodal.ercot.com 6

  7. Submission Overview for Monday August 30 DAM submission overview • 206 QSEs participated for Op Day 8/31 • Energy Bids in the range of 46,292 to 93,179 MW per hour • Cleared 33,618 to 57,415 MW energy per hr • Cleared 16,001 to 26,793 PTP bids per hr • Four major Load Zone prices ranged from $23.07 to $500.00 • Energy cleared 78.4% to 107.6% of the forecasted load. http://nodal.ercot.com 7

  8. Submission Overview for Tuesday August 31 Submission overview • 174 QSEs participated for Op Day 9/1 • Energy Bids in the range of 36,477 to 70,752 MW per hour • Cleared 29,202 to 45,941 MW energy per hr • Cleared 11,546 to 15,413 PTP bids per hr • Four major Load Zone prices ranged from $21.60 to $500.00. • Energy cleared 70.1% to 90.1% of the forecasted load. http://nodal.ercot.com 8

  9. Submission Overview for Wednesday September 1 Submission overview • 208 QSEs participated for Op Day 9/2 • Energy Bids in the range of 47,273 to 82,284 MW per hour • Cleared 37,383 to 59,339 MW energy per hr • Cleared 17,740 to 26,318 PTP bids per hr • Four major Load Zone prices ranged from $28.23 to $500.00. • Energy cleared 91.3% to 118.5% of the forecasted load. http://nodal.ercot.com 9

  10. RUC Execution Overview for this week DRUC overview for the week: http://nodal.ercot.com 10

  11. RUC Execution Overview for this week HRUC overview for the week: http://nodal.ercot.com 11

  12. Week of Activities 9/6 – 9/12 (Start of 168 Hr Test) Next week – Op Days are 9/9 – 9/12 DAM executing on 9/7 • No guardrails - Bids/offers should be reasonable • COPs should reflect Zonal Resource Plan prior to DRUC run. We will delay the DRUC run if participants have not updated COPs to be consistent with the Zonal Resource plan. DAM executing on 9/8 – 9/12 (168 Hr Test) • No guardrails - Bids/offers should be reasonable • COPs should reflect Zonal Resource Plan prior to DRUC run. http://nodal.ercot.com 12

  13. Week of Activities 9/6 – 9/12 (Start of 168 Hr Test) DRUC executing after DAM WRUC, HRUC and SASM executing on 9/8-9/11 • HRUC and SASM • WRUC executing on Monday and Wednesday • HRUC will be executed 24X7 • SASM will be opened as necessary http://nodal.ercot.com 13

  14. Week of Activities 9/13 – 9/19 (End of 168 Hr Test) Op Days are 9/13 – 9/18 DAM executing on 9/12 – 9/14 (168 Hr Test) • No guardrails - Bids/offers should be reasonable • COPs should reflect Zonal Resource Plan prior to DRUC run. DAM executing on 9/15 – 9/17 • No guardrails - Bids/offers should be reasonable • COPs should reflect Zonal Resource Plan prior to DRUC run. We will delay the DRUC run if participants have not updated COPs to be consistent with the Zonal Resource plan. • Operational Scenarios: • Continue participant requested instructions. • DAM Fail 9/15 http://nodal.ercot.com 14

  15. Week of Activities 9/13 – 9/19 (End of 168 Hr Test) DRUC executing after DAM WRUC, HRUC and SASM executing on 9/13-9/19 • HRUC and SASM • WRUC executing on Monday and Wednesday • HRUC will be executed 24X7 • SASM will be opened when necessary http://nodal.ercot.com 15

  16. September Scenarios Scenarios to run in September • VDI Commitments and VDI RUC Cancel • Rescheduled to align with settlements integration • De-commitments • Requests MarketTrials@ercot.com • RUC Simulation • ERCOT open to working with companies to align RUC instructions with zonal resource commitments • Requests MarketTrials@ercot.com • Additional Scenarios • Stress test • No DAM, procure AS through SASM (Reschedule due to NOIE CRR performance test). http://nodal.ercot.com 16

  17. General Reminders/Updates • Network Model Update • An updated settlement points and MP short name list was posted for the 9/1 load at http://nodal.ercot.com/readiness/markettrials/index.html • Next scheduled load will be installed 9/15. • Reminder regarding External Interfaces Specification v1.19O • Posted at http://nodal.ercot.com/readiness/sandbox/index.html • Delivered 8/20 • 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 • Participants can now update their COPs for two weeks out. • ERCOT will continue to announce on the Market Call the operating days for the next week • ERCOT posted the contingency lists for DSV20, DSV21 and DSV22 • http://nodal.ercot.com/readiness/markettrials/index.html • DSV 22 is published to the MIS • DSV 23 is published to the MIS http://nodal.ercot.com 17

  18. General Reminders/Updates • DAM Deep Dive Conf Call being conducted 2x/week • Interested parties and Nodal PMs were invited based on Deep Dive meetings earlier in the month • Issues being tracked on spreadsheet (posted with this presentation) • Focus on: • Addressing specific data issues (eg, constraints, SPS/RAP, Contingencies) • Detailed questions on certain prices/solution • Testing DAM solution (stress testing) • Participants are MP SMEs focused on details of DAM solution http://nodal.ercot.com 18

  19. General Reminders/Updates • Friday Market Calls • Starting next week on 9/3/2010, Friday Market Calls will run from 9am – 12pm • These calls will no longer have dedicated time slots for each functional area • As each area completes their presentation, the next agenda item will start immediately after • The 12pm end time will be extended as needed • Additionally, a new agenda item will be added to the end of the call to cover Cutover activities.  As Market Trials winds down, Cutover will become the focus. http://nodal.ercot.com 19

  20. 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 • Currently if a NOIE does not specify a price the transaction is rejected. The transaction should be accepted and a default value of $2,000 should be used. http://nodal.ercot.com 20

  21. Q&A Q&A / Open Forum http://nodal.ercot.com 21

  22. Appendix Appendix • AS Info for the week • Pre- and post-DAM reports • Special Topics http://nodal.ercot.com 22

  23. Submission Overview for August 28 http://nodal.ercot.com 23

  24. Submission Overview for August 29 http://nodal.ercot.com 24

  25. Submission Overview for August 30 http://nodal.ercot.com 25

  26. Submission Overview for August 31 http://nodal.ercot.com 26

  27. Submission Overview for September 1 http://nodal.ercot.com 27

  28. Submission Overview for September 2 http://nodal.ercot.com 28

  29. 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 29

  30. 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 30

  31. 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 31

  32. 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 32

  33. 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 33

  34. 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 34

  35. 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 35

  36. 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 36

  37. Special Topics Adjustment of ACL on Non-Business days • On Non-Business days, MMS reduces the latest ACL by the following each day until a new ACL is received from credit. • Energy-only offers • ACL is reduced by the product of the cleared quantity of the offer times the 95th percentile of the hourly difference of the Real-Time Settlement Point Price and Day-Ahead Settlement Point Price over the previous 30 days for the hour. • Energy bids • ACL is reduced by the product of the cleared bid quantity multiplied by the cleared bid price. • Three part energy offers • ACL is reduced by the product of the cleared quantity of the offer times the 95th percentile of the hourly difference of the Real-Time Settlement Point Price and Day-Ahead Settlement Point Price over the previous 30 days for the hour. • PTP Obligation bids • For each cleared PTP Obligation Bid, the ACL is reduced by the cleared bid quantity multiplied by the sum of the cleared bid price, if positive, plus the 95th percentile of the hourly positive price difference between the source Real-Time Settlement Point Price minus the sink Real-Time Settlement Point Price over the previous 30 days for the hour. • Procured AS • For procured Ancillary Services, the ACL is reduced by the product of the cleared quantity of Ancillary Service not self-arranged times the hourly MCPC for that Ancillary Service for that hour. http://nodal.ercot.com 37

  38. Special Topics HRUC next hour commitments • It is possible for HRUC to commit a unit for the next operating hour. • When this occurs it is not possible to update the COP to “ONRUC” for that unit for that hour. • QSE’s need to go ahead and update subsequent hour COPs for all units that are committed. • The next HRUC run will not consider the first hour and therefore there is no impact to not updating the COP for the first hour. • i.e. HRUC runs at 0906 and awards a unit commitments for HE 11-HE 18 at 0941. The QSE will not be able to update the COP for HE 11, but should update the status of the unit to “ONRUC” for HE 12 – HE18. http://nodal.ercot.com 38

  39. 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 39

  40. Supplemental Materials http://nodal.ercot.com 40 Slide 40

  41. 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 41

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