Issues

NPRR555

Summary
Action
Voting Record
Background
Key Documents

Summary

Title	Load Resource Participation in Security-Constrained Economic Dispatch
Next Group
Next Step
Status	Approved on 09/17/2013
Effective Dates	06/01/2014

Action

Date	Gov Body	Action Taken	Next Steps
09/17/2013	BOARD	Approved
09/05/2013	TAC	Recommended for Approval	ERCOT Board consideration of NPRR555
08/22/2013	PRS	Recommended for Approval	TAC consideration of NPRR555
07/18/2013	PRS	Deferred/Tabled	PRS consideration of NPRR555

Date

Gov Body

Action Taken

Next Steps

09/17/2013

BOARD

Approved

09/05/2013

TAC

Recommended for Approval

ERCOT Board consideration of NPRR555

08/22/2013

PRS

Recommended for Approval

TAC consideration of NPRR555

07/18/2013

PRS

Deferred/Tabled

PRS consideration of NPRR555

Voting Record

Date	Gov Body	Motion	Result
09/17/2013	BOARD	To approve NPRR555 as recommended by TAC in the 9/5/13 TAC Report.	Passed
09/05/2013	TAC	To recommend approval of NPRR555 as recommended by PRS in the 8/22/13 PRS Report and as amended by the 8/29/13 ERCOT comments.	Passed
08/22/2013	PRS	To recommend the values for the X and Y variables relative to Base Point Deviation Charges and CLREDP as set forth in the 8/15/13 WMS comments and 8/19/13 ROS comments and that these values be subject to approval and review by TAC and be posted to the MIS.	Passed
07/18/2013	PRS	To grant NPRR555 Urgent status, table NPRR555 and refer the issue to ROS and WMS.	Passed

Date

Gov Body

Motion

Result

09/17/2013

BOARD

To approve NPRR555 as recommended by TAC in the 9/5/13 TAC Report.

Passed

09/05/2013

TAC

To recommend approval of NPRR555 as recommended by PRS in the 8/22/13 PRS Report and as amended by the 8/29/13 ERCOT comments.

Passed

08/22/2013

PRS

To recommend the values for the X and Y variables relative to Base Point Deviation Charges and CLREDP as set forth in the 8/15/13 WMS comments and 8/19/13 ROS comments and that these values be subject to approval and review by TAC and be posted to the MIS.

Passed

07/18/2013

PRS

To grant NPRR555 Urgent status, table NPRR555 and refer the issue to ROS and WMS.

Passed

Background

Status:	Approved
Date Posted:	Jul 3, 2013
Sponsor:	ERCOT
Urgent:	Yes
Sections:	2.1, 2.2, 3.2.5, 3.6, 3.6.1 (new), 3.6.2 (new), 3.7.1.2, 3.9.1, 3.10.7.2, 3.17.3, 6.3, 6.3.1, 6.4.3 (new), 6.4.3.1 (new), 6.4.3.1.1 (new), 6.4.3.1.2 (new), 6.4.3.2, 6.4.3.3, 6.5.5.2, 6.5.7.1.12, 6.5.7.2, 6.5.7.3, 6.5.7.4, 6.5.7.5, 6.5.7.6.2.2, 6.5.7.6.2.3, 6.6.5, 6.6.5.1, 6.6.5.1.1, 6.6.5.1.2, 6.6.5.1.1.3 (new), 6.6.5.1.1.4 (new), 6.6.5.2, 6.6.5.4, 8.1.1.2, 8.1.1.4.1, 8.1.1.4.3
Description:	This NPRR enables Demand response from Controllable Load Resources, as re-defined, to be Dispatched by Security-Constrained Economic Dispatch (SCED) based on a Real-Time Market (RTM) Energy Bid. This NPRR clarifies the initial rules for participation in the RTM by newly-defined "Aggregate Load Resources" (ALRs), consisting of multiple metered sites within a single ERCOT Load Zone. Controllable Load Resources, including ALRs, must be capable of responding to five-minute SCED Base Point instructions, which could instruct Load changes in either direction (up or down) if the Controllable Load Resource’s bid sets the Locational Marginal Price (LMP). The NPRR, along with associated Other Binding Documents, also establishes a long-term solution for Controllable Load Resource provision of Non-Spinning Reserve (Non-Spin) Service by allowing participating Controllable Load Resources providing Non-Spin to be Dispatched economically. Initial participation will be limited to Load Serving Entity (LSE) QSEs (the only QSEs that can submit bids to buy energy) and Controllable Load Resources capable of responding to five-minute SCED Base Points. Future enhancements to the market will be necessary to accommodate direct participation by third-party Demand response aggregators and Load Resources with "block" offers or bids. Additionally, as drafted, NPRR555 will not accommodate Load Resources with ramp periods longer than five minutes, nor will it accommodate the provision of Ancillary Services by Controllable Load Resources with temporal constraints such as minimum or maximum run times. As submitted, the NPRR proposes uniform performance and compliance metrics for any Load Resource participating in SCED; however, ERCOT encourages Market Participants to consider whether establishing more relaxed metrics for Load Resources that are not carrying an Ancillary Service Resource Responsibility would attract more participation.
Reason:	ERCOT has authored this NPRR as way of contributing to ongoing efforts by policymakers and Market Participants to help limit Real-Time price reversal when actions are taken by ERCOT for reliability purposes (in this case, deployment of Load Resources providing Non-Spin).