PRR705

Title:	Emergency Interruptible Load Service (EILS) - Interim Option
Next Group:
Next Step:
Status:	Approved on 04/18/2007
Effective Date:	04/19/2007

Date	Gov Body	Next Steps
04/18/2007	Board of Directors	Approved
03/30/2007	TAC	Recommended for Approval	ERCOT Board consideration
03/22/2007	PRS	Recommended for Approval	TAC consideration and review of IA
01/22/2007	PRS		Response to PRS request by ROS, WMS and ERCOT Staff
01/22/2007	PRS

Date	Gov Body	Motion	Result	Against	Abstentions
04/18/2007	Board of Directors	Approve as recommended by TAC	Passed	0	0
03/30/2007	TAC	Recommend approval of PRR705 as revised by ERCOT Staff comments dated 3/28/07, with the understanding that the Market had little option but to approve this PRR under PUC Subst. R. 25.507.	Passed	1 IPM	7 IPM (4), IG (1), IREP (1), and MOU (1)
03/22/2007	PRS	Recommend approval of PRR705 as amended by ERCOT comments dated 3/21/07 and PRS, and to take up CPS comments as a separate PRR to comply with the Commission order.	Passed	2 Coop and MOU	6 MOU(2), IREP(2), IOU(1), and IG(1)
01/22/2007	PRS	That PRS concurs with ERCOT that curtailing voluntary firm Load in emergency conditions is preferable to shedding firm Load on an involuntary basis. However, PRS is not yet convinced that such a program is appropriate for two reasons: 1. The market has changed since April 17, 2006; 2. Whether it can be implemented for a cost commensurate with the value of lost load (VOLL) associated with rotating outages during emergency conditions. Therefore, at this time, PRS declines to recommend approval or rejection of any PRRs related to EILS until questions related to the need and efficacy of such a service are more firmly established. PRS therefore tables PRR702, PRR703, PRR704, and PRR705 until the February 22, 2007 PRS meeting. PRS requests that the Reliability Operations Subcommittee (ROS) address the following questions and report back to PRS on February 22, 2007: 1. What is the statistical likelihood, given ERCOT Operator flexibility in the EECP process, that EILS will be utilized as envisioned prior to firm Load shedding? 2. Rate the impact of each of the EILS PRRs on ERCOT’s loss of Load probability (LOLP). 3. Evaluate the EILS PRRs procurement methodology. What is the appropriate amount of EILS to procure, if any? 4. Evaluate the EILS PRRs deployment methodology. Address any concerns that arise from deployment and recall: i.e., should EILS be deployed as a single block; is geographic concentration of EILS providers an issue during EECP; what are the effects of transmission system limitations; etc.? 5. What other alternatives to EILS, such as procuring additional existing Ancillary Services, could be utilized to achieve similar results? PRS requests that ERCOT Staff address the following questions and report to PRS on February 22, 2007: 1. What is the statistical likelihood, given ERCOT Operator flexibility in the EECP process, that EILS will be utilized as envisioned prior to firm Load shedding? 2. Rate the impact of each of the EILS PRRs on ERCOT’s LOLP. 3. What alternatives to EILS were examined by ERCOT, if any, and why was EILS pursued instead of those other options? Has the VOLL been determined for the April 17, 2006 Load shedding event? If so, please share the methodology and results of that study. If not, why not? PRS requests that WMS define the following and report to PRS on February 22, 2007: 1) The benefit. 2) The cost based on the EILS PRRs. 3) Changes in Market since April 17, 2007.	Passed	0	2 Consumers

Vote tallies here reflect individual votes, not the weight of the votes by market segment. Affirmative votes are not recorded in these vote tallies. For additional details on the voting record, please consult the Recommendation or Action Report, or the official vote tally if available, as posted in the key documents.

Status:	Approved
Date Posted:	01/10/2007
Sponsor:	ERCOT Staff
Urgent:	Yes
Sections:	Section 2, Definitions and Acronyms; Section 5.6.7, EECP STEPS; Section 5.9.3, ERCOT Data Collection; Section 6.1.13, Emergency Interruptible Load Service (New); Section 6.2, Providers of Ancillary Services; Section 6.5, Technical Requirements for Providers of Ancillary Services; Section 6.5.12, Emergency Interruptible Load Service (New); Section 6.7.9, Deployment of Emergency Interruptible Load Service (New); Section 6.8.6, Capacity Payments for Emergency Interruptible Load (New); Section 6.9.4, Settlement Obligation for Black Start Service, RMR Standby Service, and Synchronous Condenser Service; Section 6.10.2, General Capacity Testing Requirements; Section 6.10.13, Emergency Interruptible Load Service Qualification, Testing and Performance Standards (New); Section 16.5, Registration of Generation Resources and Loads acting as Resources; Section 22 -- Attachment K, Standard Form Emergency Interruptible Load Service Agreement (New)
Description:	This PRR would modify the ERCOT Protocols to allow for the use of an Emergency Interruptible Load Service (EILS) when an EECP is declared and all available Generation and Loads acting as Resources (LaaRs) have been deployed.
Reason:	This PRR provides ERCOT with a tool to reduce the likelihood of firm load shedding during an EECP event in a manner that is consistent with current market design and in a way that will minimize the costs to the market. This PRR is intended to be effective on an interim basis while long-term solutions (with potentially longer implementation time frames) are developed in the stakeholder process. This PRR could also serve as a more permanent backstop solution in case another emergency load PRR fails to attract subscribers.