NOTICE DATE: September 22, 2015
NOTICE TYPE: W-B092215-01 NPRR
SHORT DESCRIPTION: Implementation Details for NPRR595, NPRR698, NPRR588, NPRR615, NPRR699 and VCMRR007
INTENDED AUDIENCE: ERCOT Market Participants and Settlement Personnel
DAY AFFECTED: October 20-22, 2015
LONG DESCRIPTION: Between October 20 and October 22, 2015, ERCOT will implement the following Nodal Protocol Revision Requests (NPRR):
* NPRR595, RRS Load Resource Treatment in ORDC, which was approved by the ERCOT Board on December 9, 2014;
* NPRR698, Clarifications to NPRR595, RRS Load Resource Treatment in ORDC, which was approved by the ERCOT Board on June 9, 2015;
* NPRR588, Clarifications for PV Generation Resources which was approved by the ERCOT Board on June 10, 2014;
* NPRR 615, PVGR Forecasting which was approved by the ERCOT Board on August 12, 2014;
* NPRR 699, Energy Offer Curve Caps for Make-Whole Calculations for Resource Type Other, which was approved by the ERCOT Board on August 11, 2015; and
* Verifiable Cost Manual Revision Request (VCMRR) 007, Alignment with NPRR699, Energy Offer Curve Caps for Make-Whole Calculations for Resource Type Other, which was approved by the Technical Advisory Committee (TAC) on August 27, 2015.
Changes for NPRR595 and NPRR698:
o New Settlement Calculation Revisions:
1. Real-Time Capacity from Controllable Load Resources for the Qualified Scheduling Entity (QSE)
RTCLRCAPq = (RTCLRNPC q - RTCLRLPCq - RTCLRNSq ) + RTCLRREGq
Where:
RTCLRNPC q = SYS_GEN_DISCFACTOR *[cid:image002.png@01D0F541.9F197730] RTCLRNPCR q,r,p
RTCLRLPC q = SYS_GEN_DISCFACTOR *[cid:image002.png@01D0F541.9F197730] RTCLRLPCR q,r,p
RTCLRNS q = SYS_GEN_DISCFACTOR *[cid:image002.png@01D0F541.9F197730] RTCLRNSR q,r,p
RTCLRREG q = SYS_GEN_DISCFACTOR *[cid:image002.png@01D0F541.9F197730] RTCLRREGR q,r,p
2. Real-Time Capacity from Non-Controllable Load Resources carrying Responsive Reserve (RRS) for the QSE
RTNCLRCAPq = RTNCLRNPC q - RTNCLRLPCq
Where:
RTNCLRNPC q = SYS_GEN_DISCFACTOR *[cid:image002.png@01D0F541.9F197730]RTNCLRNPCR q,r,p
RTNCLRLPC q = SYS_GEN_DISCFACTOR *[cid:image002.png@01D0F541.9F197730]RTNCLRLPCR q,r,p
3. Real-Time On-Line Capacity
RTOLCAP q = (RTOLHSL q - RTMGQ q - SYS_GEN_DISCFACTOR * ([cid:image005.png@01D0F541.9F197730][cid:image007.png@01D0F541.9F197730]UGENA q,r,p)) + RTCLRCAP q + RTNCLRCAP q
o New Settlement Bill Determinants:
Bill Determinant
Short Description
Extract
Extract Table
RTNCLRNPCR
Real-Time Non-Controllable Load Resource Net Power Consumption
RTM CODE
MKTINPUTHEADER
MKTINPUTINTERVAL
RTNCLRLPCR
Real-Time Non-Controllable Load Resource Low Power Consumption
RTM CODE
MKTINPUTHEADER
MKTINPUTINTERVAL
RTCLRNPCR
Real-Time Controllable Load Resource Net Power Consumption
RTM CODE
MKTINPUTHEADER
MKTINPUTINTERVAL
RTCLRLPCR
Real-Time Controllable Load Resource Low Power Consumption
RTM CODE
MKTINPUTHEADER
MKTINPUTINTERVAL
RTNCLRNPC
Real-Time Non-Controllable Load Resource Net Power Consumption for the QSE
RTM CODE
RTMOUTPUTHEADER
RTMOUTPUTINTERVAL
RTNCLRLPC
Real-Time Non-Controllable Load Resource Low Power Consumption for the QSE
RTM CODE
RTMOUTPUTHEADER
RTMOUTPUTINTERVAL
RTCLRNPC
Real-Time Controllable Load Resource Net Power Consumption for the QSE
RTM CODE
RTMOUTPUTHEADER
RTMOUTPUTINTERVAL
RTCLRLPC
Real-Time Controllable Load Resource Low Power Consumption for the QSE
RTM CODE
RTMOUTPUTHEADER
RTMOUTPUTINTERVAL
RTNCLRCAP
Real-Time Capacity from Non-Controllable Load Resources carrying Responsive Reserve for the QSE
RTM CODE
RTMOUTPUTHEADER
RTMOUTPUTINTERVAL
Changes for NPRR588/NPRR615:
o New Settlement Calculation Revisions:
Congestion Revenue Rights (CRRs)
1. The calculation for the Minimum Resource Price for a Resource located at the source Settlement Point (MINRESRPR) has been updated to use the new value for Photovoltaic Generation Resources (PVGRs), per paragraph (2) of Protocol Section 7.9.1.3, Minimum and Maximum Resource Prices.
2. The calculation for the Maximum Resource Price for a Resource located at the sink Settlement Point (MAXRESRPR) has been updated to use the new value for PVGRs, per paragraph (3) of Protocol Section 7.9.1.3.
Reliability Unit Commitment (RUC)
1. The calculation for Startup Price (SUPR) has been updated to use the new Generic Startup Cap for PVGRs, per paragraph (1) of Protocol Section 4.4.9.2.3, Startup Offer and Minimum-Energy Offer Generic Caps.
2. The calculation for Minimum-Energy Price (MEPR) has been updated to use the new Generic Minimum-Energy Cap for PVGRs, per paragraph (2) of Protocol Section 4.4.9.2.3.
3. In calculating the amount short for each QSE, the QSE will not be given a capacity credit for PVGRs that were given notice of decommitment within the two hours before the Operating Hour, per paragraph (2) of Protocol Section 5.7.4.1.1, Capacity Shortfall Ratio Share.
4. The calculation for RUC Shortfall at Adjustment Period (RUCSFADJ) has been updated to include the input of High Ancillary Services Limit at Snapshot (HASLSNAP) for PVGRs, per paragraph (1) of Protocol Section 5.7.4.1.1.
5. The calculation for RUC Capacity at Adjustment Period (RUCCAPADJ) has been updated to exclude the input of High Ancillary Services Limit at Adjustment Period (HASLADJ) for PVGR Resources, per paragraph (11) of Protocol Section 5.7.4.1.1.
a. The calculation for High Ancillary Services Limit at Adjustment Period (HASLADJ) has been updated to exclude calculation for PVGRs.
Average Incremental Energy Cost
1. The calculations for Day-Ahead Average Incremental Energy Cost (DAAIEC) have been adjusted to consider the new PVGR fuel type. The price caps used for make whole purposes are designated in NPRR699 and are described in the applicable section of this notice.
2. The calculations for Real-Time Average Incremental Energy Cost (RTAIEC) have been adjusted to consider the new PVGR fuel type as an Intermittent Renewable Resource (IRR). The proxy curve logic described in Protocol Section 6.5.7.3, Security Constrained Economic Dispatch, previously reserved for wind units has been extended to IRR resources in NPRR588, which includes the new PVGR fuel type. The price caps used for make whole purposes are designated in NPRR699 and are described in the applicable section of this notice.
o New Settlement Inputs:
Factor
Short Description
Extract
Extract Table
MAXRESPRVALUE_PVGR
Maximum Resource Price for PVGR
PRDE
FACTOR
FACTORVALUE
MINRESPRVALUE_PVGR
Minimum Resource Price for PVGR
PRDE
FACTOR
FACTORVALUE
NDL_RCGMEC_PVGR_FACTOR
Nodal PVGR Generic Minimum-Energy Cap
PRDE
FACTOR
FACTORVALUE
NDL_RCGSC_PVGR_FACTOR
Nodal PVGR Generic Startup Cap
PRDE
FACTOR
FACTORVALUE
Fueltypecat
Short Description
Extract
Extract Table
PVGR
PhotoVoltaic Generation Resource
PRDE
FUELTYPECAT
Changes for NPRR699:
o New Settlement Calculation Revisions:
Average Incremental Energy Cost
1. The Energy Offer Curve Caps for Make-Whole Calculation Purposes will be adjusted per changes to Protocol Section 4.4.9.3.3, Energy Offer Curve Caps for Make-Whole Calculation Purposes, outlined in NPRR699. These caps apply to both Day-Ahead Average Incremental Energy Cost (DAAIEC) and Real-Time Average Incremental Energy Cost (RTAIEC).
o New Settlement Inputs:
Factor
Short Description
Extract
Extract Table
AIECPRCAP_PVGR
PhotoVoltaic Generation Resource AIEC PRICECAP
PRDE
FACTOR
FACTORVALUE
ADDITIONAL INFORMATION: Pursuant to Nodal Protocol Section 21.6, Nodal Protocol Revision Implementation, and Verifiable Cost Manual Section 12.6, Verifiable Cost Manual Revision Implementation, ERCOT is required to provide notice as soon as practicable, but no later than ten days prior to implementation.
NPRR588<http://www.ercot.com/mktrules/issues/NPRR588> and associated documents can be found on the ERCOT website.
NPRR595<http://www.ercot.com/mktrules/issues/NPRR595> and associated documents can be found on the ERCOT website.
NPRR615<http://www.ercot.com/mktrules/issues/NPRR615> and associated documents can be found on the ERCOT website.
NPRR698<http://www.ercot.com/mktrules/issues/NPRR698> and associated documents can be found on the ERCOT website.
NPRR699<http://www.ercot.com/mktrules/issues/NPRR699> and associated documents can be found on the ERCOT website.
VCMRR007<http://www.ercot.com/mktrules/issues/vcmrr/001-025/007#keydocs> and associated documents can be found on the ERCOT website.
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]<mailto:[log in to unmask]>.
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