NOTICE DATE:  April 23, 2014

NOTICE TYPE:  M-A042314-01 NPRR

SHORT DESCRIPTION:  Implementation details for NPRR532, NPRR555 and NPRR591

INTENDED AUDIENCE:  ERCOT Market Participants and Settlement Personnel

DAY AFFECTED:  June 1, 2014

LONG DESCRIPTION:  On June 1, 2014, ERCOT will implement Nodal Protocol Revision Request (NPRR) 532, Performance Measurement and Verification and Telemetry Requirements for Load Resources Providing Non-Spin and NPRR555, Load Resource Participation in Security-Constrained Economic Dispatch and NPRR591 As-Built Clarification and Corrections Related to NPRR568 and NPRR555.  NPRR532 enables participation in the Non-Spinning Reserve (Non-Spin) Service market for Load Resources.  NPRR555 and NPRR591 enable 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. 

New ICCP Telemetry Points:

 

NPRR555 adds the following new telemetry points to communicate Controllable Load Resources “Resource LMP”, “SCED Base Point”, “Updated Desired Base Point (UDBP)” and Congestion Flag values to the market using Inter-Control Center Communications Protocol (ICCP). Similar to the Generating Resources, Controllable Load Resources Updated Desired Base point (UDBP) is a linear interpolation from the current UDBP to the new SCED CLR base point over base point ramp duration. Controllable Load Resources Congestion Flag indicates that SCED has dispatched a CLR available for SCED dispatch below HDL similar to the one used for Generation Resource.  For any questions, please contact Client Services to get the ERCOT ICCP Support team help.

Controllable Load Resources LMP ($/MWh)

Controllable Load Resources SCED Base Point (MW)

Controllable Load Resources Updated Desired Base Point (MW)

Congestion Flag (SBBH).

New and/or updated Defined Resource Status for Load Resources:

The following Resource Statuses for Load Resources are to be used for Current Operating Plan (COP) and/or Real-Time telemetry purposes for NPRR555:

·         ONRGL – Available for Dispatch of Regulation Service by Load Frequency Control (LFC) and, for any remaining Dispatchable capacity, by SCED with an RTM Energy Bid;

·         ONCLR – Available for Dispatch of Response Reserve (RRS) Service, Non-Spinning Reserve Service or for energy as a Controllable Load Resource by SCED with an RTM Energy Bid;

·         ONRL – Available for Dispatch of under-frequency relay-type RRS Service; and

·         OUTL – Not available;

 

The following reports are being added to the Market Information System (MIS) and/or ERCOT.com:

Name	EMIL ID	Rpt. ID	Data Classification	Frequency
Monthly CLR Energy Deployment Performance Report	NP8-500-ER	13225	Certified	Monthly
Monthly Non-Spin CLR Performance Report	NP8-384-ER	13224	Secure	Monthly
48-hour Highest Priced Bids Selected or Dispatched in SCED	NP3-257-EX	13230	Public	Daily
Load Resource SCED Qualification Test Results	NP12-212-M	13234	Certified	Yearly
Load Resource Reserve Discount Factors for CLRs	NP6-575-M	13226	Public	As Needed
Controllable Load Resource Base Point Deviation Charge for Over-Consumption Variables	NP6-651-M	13228	Public	As Needed
Controllable Load Resource Base Point Deviation Charge for Under-Consumption Variables	NP6-652-M	13227	Public	As Needed
CLREDP Acceptable Performance Criteria	NP8-114-M	13229	Public	As Needed
48-hour - Aggregate Energy Demand Curves for Controllable Load Resources (located inside the 48 Hour DAM and SCED Energy Curves Reports)	NP3-908-ER	13054	Public	Daily

 

The following reports are being changed:

Name	EMIL ID	Rpt. ID	Category
New Name:  Monthly Generation Resource Energy Deployment Performance Report Previous Name:  Monthly Resource Energy Deployment Performance Report	NP8-501-ER	11022	Certified
New Name:  Monthly Non-Spin Generation Performance Report Previous Name:  Monthly Non-Spin Performance Report	NP8-383	11026	Secure
New Name:  Approved GREDP Reports Previous Name:  Approved GREDP and CLREDP Performance Criteria Variables	NP8-503-M	13034	Public
Resource Control Report – SCED qualified Resources will be included, as applicable.	NP3-988-ER	10036	Public
QSE Ancillary Services Capacity Monitor – Two new columns being added to existing report: ·         Capacity from Controllable Load Resources available to decrease Base Points (energy consumption) in SCED ·         Capacity from Controllable Load Resources available to increase Base Points (energy consumption) in SCED	NP8-143-CD	11025	Certified

The System Ancillary Service Capacity Monitor dashboard will contain two new rows in the System Capacity section; additionally, the Base Points will be specified as Generation Resource Base Points in SCED. 

·         Capacity from Controllable Load Resources available to decrease Base Points (energy consumption) in SCED

·         Capacity from Controllable Load Resources available to increase Base Points (energy consumption) in SCED

New Market Submission Type:

A new submission type, Real-Time Market (RTM) Bids, will be added to support participation in SCED by qualified Controllable Load Resources. The type will appear in the Market Manager under the “Resource-Specific” tab, and the XML format is specified by the attached XSD documents. The MOTE environment will be available for testing submissions starting on Tuesday, April 29, 2014.

New Settlement Bill Determinants:

The following new bill determinants will be implemented for NPRR555:

Bill Determinant	Short Description	Extract	Extract Table
ATPC	Average Telemetered Power Consumption	SID/RTM MODE	MKTINPUTHEADER MKTINPUTSCALAR
CLRASFLAG	Flag that indicates that the Controllable Load Resource has Ancillary Service responsibility	SID/RTM CODE	MKTINPUTHEADER MKTINPUTINTERVAL
CLRDISPFLAG	Flag that indicates the computed Base Point is equal to the snapshot of its telemetered power consumption for all SCED runs during the Settlement Interval	SID/RTM CODE	MKTINPUTHEADER MKTINPUTINTERVAL
LROFLAG	Flag that indicates that the Controllable Load Resource’s telemetered Resource Status is set to OUTL	SID/RTM CODE	MKTINPUTHEADER MKTINPUTINTERVAL
OCONSM	Over-Consumption Volumes per QSE per Settlement Point per Controllable Load Resource	RTM/CODE	RTMOUTPUTHEADER RTMOUTPUTINTERVAL
UCONSM	Under Consumption Volumes per QSE per Settlement Point per Controllable Load Resource	RTM/CODE	RTMOUTPUTHEADER RTMOUTPUTINTERVAL

 

New Settlement Factor/FactorValue:

The following new Factor will be implemented for NPRR555:

Factor	Short Description	Extract	Extract Table
KP1	The coefficient applied to the Settlement Point Price for over-consumption charge	PRDE	Factor/FactorValue
KLR1	The percentage tolerance for over-consumption of a Controllable Load Resource when the CLR has Ancillary Service responsibility	PRDE	Factor/FactorValue
KLR1_NOAS	The percentage tolerance for over-consumption of a Controllable Load Resource when the CLR does not have Ancillary Service responsibility	PRDE	Factor/FactorValue
KLR2	The percentage tolerance for under-consumption of a Controllable Load Resource when the CLR has Ancillary Service responsibility	PRDE	Factor/FactorValue
KLR2_NOAS	The percentage tolerance for under-consumption of a Controllable Load Resource when the CLR does not have Ancillary Service responsibility	PRDE	Factor/FactorValue
PRZ1	The minimum price to use for the charge calculation when the CLR over consumed	PRDE	Factor/FactorValue
PRZ2	The maximum price to use for the charge calculation when the CLR under consumed	PRDE	Factor/FactorValue
QLR1	The MW tolerance for over-consumption of a Controllable Load Resource	PRDE	Factor/FactorValue
QLR2	The MW tolerance for under-consumption of a Controllable Load Resource	PRDE	Factor/FactorValue

 

Extract Changes:

The Following table additions will be made to the Public Reference Data Extract (PRDE) and the supporting documentation for NPRR555:

·         LOADRESOURCES

·         DISPATCHTYPE

ACTION REQUIRED:  Implement changes to SCED to allow participation of Load Resources in compliance with NPRR555 and allow Load Resources to provide Non-Spin in compliance with NPRR532. 

ADDITIONAL INFORMATION:  Pursuant to Protocol Section 21.6, Nodal Protocol Revision Implementation, ERCOT is required to provide notice as soon as practicable, but no later than ten days prior to implementation of any NPRR that is not implemented on the first day of the month following Board approval of the NPRR.

NPRR532, NPRR555 and NPRR591 with associated documents can be found on the ERCOT website.

Information on upcoming releases can be found on the Project Priority List (PPL).

CONTACT:  If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].

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