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EILS Update

Explore ERCOT's demand integration strategies, procurement trends, and communication challenges during the Feb-May 2011 EILS updates. Learn about emergency steps, rotating outages, and guidelines for new EILS procurement.

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EILS Update

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  1. EILS Update Mark Patterson ERCOT, Manager Demand Integration Demand Side Working Group

  2. February through May 2011 Procurement Demand Side Working Group

  3. Business Hours 1

  4. Business Hours 2

  5. Business Hours 3

  6. Non-Business Hours

  7. Procurement Trends (no. & avg. size of EILS Loads) EILS Loads include individual Loads and aggregations

  8. Individual Site Participation Cumulative number of unique sites in EILS ID process

  9. February 2, 2011 Event Demand Side Working Group

  10. ERCOT experienced communications challenges due to the rapidly-unfolding events • Issued OCN • Operating Condition Notice • Expected Freezing Temperatures • PUCT Report @3:05pm • Issued Watch • Reserves Below 2500 MW • Sent to Grid Alert List • Issued OCN and Advisory • Severe Weather • Reserves below 3000 MW • PUCT Report @ 3:21am • Issued OCN • Winter Storm Warning • PUCT Report @2:45 a.m. • Issued EEA Level 2A • Reserves Below 1750 MW • Sent to Grid Emergency List Jan 31 Feb 1 Feb 2 3:05p.m. 2:45am 3:00am 5:08am 5:17am 9:05am 5:43am • Issued Advisory • Freezing Temperatures • PUCT Report • Issued EEA Level 3 • Rotating Outages • Sent to Grid Emergency List • PUCT Report @ 6:05am • OCN and Watch also include: • Qualified Scheduling Entity Hotline Call • Transmission Owner Hotline Call • Postings on the Market Information System and ERCOT website

  11. A timeline of the emergency steps that were taken leading to rotating outages in ERCOT • Issued EEA 3 • EILS deployed • Firm Load Shed 1,000 MW New winter Peak Record 56,480 MW 7:57am Restored 500 MW (3,500 MW out) 8:22am Restored 500 MW (3,000 MW out) 9:25am Restored 500 MW (2,500 MW out) 1,804 MW Non-Spin deployed Restored 500 MW Restoration Complete Move to EEA 2B From EEA 3 Feb 2 Feb 3, 10 AM EEA 2A ends & EILS recalled 4:30am 5:43am 1:07pm 2:01pm 7:15pm 5:08am 5:20am 6:04am Firm load shed 1,000 MW (2,000 MW total) 6:05am Frequency 59.576Hz 6:23am Firm Load Shed 2,000 MW (4,000 MW total) 6:59am Media Appeal issued 11:39am Restored 500 MW (2,000 MW out) 12:04pm Restored 500 MW (1,500 MW out) 12:25pm Restored 500 MW (1,000 MW out) 12:49pm Restored 500 MW (500 MW out) 1:57pm 3:14pm • Issued EEA 2A • Reserves below 1,750 MW • Load Resources deployed Move to EEA 2A From EEA 2B Load Resources Recalled Issued Watch Reserves below 2,500 MW

  12. The ERCOT System responded as expected

  13. New EILS Contract Period(RFP) Demand Side Working Group

  14. New EILS RFP • Today ERCOT will be filing a Petition for Emergency Rulemaking with the Public Utility Commission • Subst. R. 25.507 (a)(2): • (2) Notwithstanding the foregoing, ERCOT may restructure the contract periods to facilitate additional load participation in EILS. ERCOT must publicly announce any changes to the contract period schedule described above at least 90 days prior to the next contract period start date. • Petition will seek to remove the 90-day advance notice requirement Demand Side Working Group

  15. This EILS RFP is provisional and this procurement may be cancelled by ERCOT at any step in the process prior to notification of awards. A decision by ERCOT to proceed with the procurement will be contingent on factors including but not limited to the following: • Approval by the Public Utility Commission of Texas (PUCT) of a change to PUCT Substantive Rule §25.507 (a)(2), • May require Approval by the ERCOT Board of Directors of a waiver of Nodal Protocols Section 3.14.3 (2), • EILS MW capacity offers that are determined by ERCOT to be both sufficient to provide a viable operational tool for ERCOT to deploy in an Energy Emergency Alert and priced consistent with the reasonableness criteria Demand Side Working Group

  16. Demand Side Working Group

  17. GUIDELINES FOR New EILS PROCUREMENT • The Change Control process for the Technical Requirements and Scope of Work for the new Contract Period will be modified as follows: • the Market Participant review period for changes to the document will be less than 14 days. Otherwise the Change Control process will not change. Demand Side Working Group

  18. GUIDELINES FOR New EILS PROCUREMENT (Cont’) • QSEs may submit new EILS Loads or reconfigured aggregated EILS Loads to ERCOT for consideration using the EILS Load Identification (ELID) process as defined and adhering to the ELID deadlines set forth in the procurement schedule. Demand Side Working Group

  19. GUIDELINES FOR New EILS PROCUREMENT (Cont’) • QSEs may submit offers for the following: • EILS Loads assigned an ELID number through the process described in No. 2, above. • EILS Loads with valid, numbered ELIDs and baseline assignments from the original Feb.-May 2011 Contract Period procurement cycle. • EILS Loads with valid Reinstatement ELIDs that have successfully completed their reinstatement test and for which the suspension period has expired or will expire prior to April 1, 2011. Standard parameters relating to reinstatement offers apply. • Substituting EILS Loads that were providing EILS at the time of the Feb. 2-3 EILS deployment event. Demand Side Working Group

  20. GUIDELINES FOR New EILS PROCUREMENT (Cont’) • Availability and event performance will be evaluated independently of the original Feb.-May Contract Period. Demand Side Working Group

  21. Demand Side Working Group

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