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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
|
NP8-501-ER |
11022 |
Certified |
New Name:
Monthly Non-Spin Generation Performance Report |
NP8-383 |
11026 |
Secure |
New Name: Approved GREDP Reports |
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 |
CLRASFLAG |
Flag that indicates that the Controllable Load Resource has Ancillary Service responsibility |
SID/RTM CODE |
MKTINPUTHEADER |
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 |
LROFLAG |
Flag that indicates that the Controllable Load Resource’s telemetered Resource Status is set to OUTL |
SID/RTM CODE |
MKTINPUTHEADER |
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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