Configuration Guide for: NERC WECC Charge / Date: 05/106/2908/02/11
Settlements & Billing
BPM Configuration Guide: NERC WECC Charge
CC 6490
Version 5.01
CAISO, 2018 / Page 1 of 11Settlements & Billing / Version: 5.01
Configuration Guide for: NERC WECC Charge / Date: 05/106/2908/02/11
Table of Contents
1.Purpose of Document
2.Introduction
2.1Background
2.2Description
3.Charge Code Requirements
3.1Business Rules
3.2Predecessor Charge Codes
3.3Successor Charge Codes
3.4Inputs - External Systems
3.5Inputs - Predecessor Charge Codes or Pre-calculations
3.6CAISO Formula
3.7Outputs
4.Charge Code Effective Date
1.Purpose of Document
The purpose of this document is to capture the requirements and design specification for a Charge Code in one document.
2.Introduction
2.1Background
The CAISO shall invoice all Scheduling Coordinators (SCs) for NERC/WECC charges that are invoiced to the CAISO by the WECC on behalf of itself, NERC, and/or regional advisory bodies that serve the WECC. Each SC shall be obligated to pay the CAISO all of the NERC/WECC Charges it is invoiced by the CAISO in accordance with the applicable provisions of the ISO tariff. Each SC’s responsibility for NERC/WECC Charges is based on its calculated NERC/WECC Metered Demand.
NERC/WECC charges are FERC approved amounts that provide funding for the statutory-related functions performed by the NERC, the WECC, and regional advisory bodies that serve the WECC or their successors or assignees.
2.2Description
NERC/WECC Charge is charged to participants through Pass Through Bill charge code 6490.
NERC/WECC Charge Assessment Year is defined as a given year for which NERC/WECC Charges will be assessed by the WECC based on data from the calendar year two years prior to the year of the NERC/WECC Charge Assessment.
A preliminary charge is invoiced no later than August 31 of the year preceding the NERC/WECC Charge Assessment Year. Within 15 Business Days after receipt of the WECC invoice to the ISO setting forth the assessment for the NERC/WECC Charges for the NERC/WECC Charge Assessment Year, the ISO will issue a final invoice or charge for the NERC/WECC Charge Assessment Year to Scheduling Coordinators.
The Preliminary NERC/WECC Chargeamount will reflect the product of each SC’s NERC/WECC Metered Demand for the calendar year two years prior to the NERC/WECC Charge Assessment Year and the previous year’s Final NERC WECC charge rate. The final amount for each SC will reflect the product of NERC/WECC Metered Demand specified above and the Final NERC/WECC Charge Rate for the NERC/WECC Charge Assessment Year.
An SC’s NERC/WECC Metered Demand is considered a Business Associate’s (BA) net metered CAISO Demand plus Unaccounted for Energy for net metered CAISO Demand and Transmission Losses for Metered CAISO demand. A BA’s net metered CAISO Demand equals the BA’s metered CAISO Demand, less metered CAISO Demand for Station Power and for Energy required for storage at electrical energy storage facilities, such as pumped storage. For purposes of calculating NERC/WECC Metered Demand, Unaccounted for Energy and Transmission Losses allocable to net metered CAISO Demand will be allocated pro rata to each BA based on the BAs net metered CAISO Demand.
For the purpose of Settlements implementation, the preliminary charge mentioned in the Tariff shall be reflected inan initial statement, while the final charge mentioned in the Tariff shall be reflected in arecalculation statement in Settlements.
The NERC/WECC Charges (either from an initial statement or recalculation statement) shall be invoiced using a NERC/WECC invoice type that is separate from the Market invoice type.
Additional processing rules associated with settlement and invoicing for NERC/WECC Charges are defined in the main body of the BPM for Settlement & Billing.
CAISO, 2018 / Page 1 of 11Settlements & Billing / Version: 5.01
Configuration Guide for: NERC WECC Charge / Date: 05/106/2908/02/11
3.Charge Code Requirements
3.1Business Rules
Bus Req ID / Business Rule1.0 / NERC/WECC Charge (CC 6490) is an annual charge code.
1.1 / The CAISO will issue the NERC/WECC Charge-related charge statements, and invoices separately from the regular market statements and invoices.
2.0 / The NERC/WECC Charges allocated to a Scheduling Coordinator are the product of the SC’s pro-rata share of NERC/WECC Metered Demand and the applicable NERC/WECC Charge Rate.
3.0 / NERC/WECC Charge Assessment Year is defined as a given year for which NERC/WECC Charges will be assessed by the WECC based on data from the calendar year two years prior to the year of the NERC/WECC Charge Assessment.
4.0 / The CAISO will issue a Market Notice setting forth the total of SCs NERC/WECC Metered Demand for the calendar year two years prior to the NERC/WECC Charge Assessment Year. On or after the Market Notice date, the CAISO will notify each Scheduling Coordinator in writing of the Scheduling Coordinator’s NERC/WECC Metered Demand for the calendar year two years prior to the NERC/WECC Charge Assessment Year.
4.1 / For Settlements implementation, the NERC/WECC Metered Demand value per Scheduling Coordinator (as identified by its Business Associate ID) shall be provided via a CD up through calendar year 2012 for Assessment Year 2013..
4.2 / Beginning in calendar year 2013 (Assessment Year 2014), the NERC/WECC Metered Demand value per Scheduling Coordinator (as identified by its Business Associate ID) shall be provided on all market recalculation statements as well as the NERC/WECC Information Statement, the NERC/WECC Initial Statement, and the NERC/WECC Recalculation Statement.
4.2.1 / The NERC/WECC Metered Demand quantities included in the NERC/WECC Information Statement are based on the most current meter data available to the CAISO at the time the Information Statement is generated.
4.23 / Scheduling Coordinators have sixty (60) calendar days to raise any disputes regarding the ISO’s calculation of the SC’s NERC/WECC Metered Demand for the calendar year two years prior to the NERC/WECC Charge Assessment Year as it appears on the NERC/WECC Information Statement..
5.0 / The CAISO will report to the WECC the total of all Scheduling Coordinators’ NERC/WECC Metered Demand for the calendar year two years prior to the NERC/WECC Charge Assessment Year, including any adjustments to the calculation of NERC/WECC Metered Demand for that year made by the CAISO in response to disputes raised by Scheduling Coordinators or adjustments approved by WECC.
6.0 / The CAISO will issue a Market Notice setting forth the Preliminary NERC/WECC Charge Rate for the NERC/WECC Charge Assessment Year. The Preliminary NERC/WECC Charge Rate is the preliminary rate to be paid by SCs for NERC/WECC charges for a NERC/WECC Charge Assessment Year based on (1) the portions of the proposed budgets of NERC, WECC, and the regional advisory bodies that serve the WECC that the WECC notifies the CAISO in writing are allocable to the CAISO for the NERC/WECC Charge Assessment Year or, alternatively, if the WECC does not provide such written notification to the CAISO, the portions of the budgets of NERC, WECC, and regional advisory bodies that serve the WECC that the WECC informed the CAISO were allocable to the CAISO for the immediately preceding NERC/WECC charge Assessment Year divided by (2) the total of all SCs NERC/WECC Metered Demand for the NERC/WECC Charge Assessment Year, including any applicable adjustments to the calculation of NERC/WECC Metered Demand.
7.0 / By August 31 of the year preceding the NERC/WECC Charge Assessment Year, the CAISO will issue Preliminary NERC/WECC Charge Invoices for the NERC/WECC Charge Assessment Year. NERC/WECC Initial Statement is the supporting calculation for the NERC/WECC Initial Invoice.The NERC/WECC Initial Invoice is the MRTU equivalent to Preliminary NERC/WECC Charge Invoice.
7.1 / The NERC/WECC Metered Demand quantities utilized for the Preliminary NERC/WECC Charge Invoice are based on the same quantities utilized in the NERC/WECC Information Statement plus any WECC approved adjustments made to the calculation by the CAISO in response to disputes raised by Scheduling Coordinators.
8.0 / Within five (5) Business Days after receipt of the WECC’s invoice to the CAISO setting forth the assessment of NERC/WECC Charges for the NERC/WECC Charge Assessment Year, the CAISO shall issue a Market Notice setting forth the Final NERC/WECC Charge Rate for the NERC/WECC Charge Assessment Year. The Final NERC/WECC Charge Rate for the NERC/WECC Charge Assessment Year shall be based on (1) the total NERC/WECC charges for the NERC/WECC Charge Assessment Year that were invoiced to the CAISO by the WECC, divided by (2) the total of all SC’s NERC/WECC Metered Demand, including any applicable adjustments.
9.0 / The CAISO will issue a final invoice for the final assessment of NERC/WECC Charges within fifteen (15) Business Days after receipt of the WECC invoice to the CAISO. NERC/WECC Recalculation Statement is the supporting calculation for the NERC/WECC Recalculation Invoice.The NERC/WECC Recalculation Invoice is the MRTU equivalent Final NERC/WECC Charge Invoice
9.1 / The NERC/WECC Metered Demand quantities utilized for the Final NERC/WECC Charge Invoice are based on the Preliminary NERC/WECC Charge Invoice meter data.
10.0 / For Settlements business implementation, the Preliminary NERC/WECC Charges will be included in a NERC/WECC Initial Statement, and the final assessment of NERC/WECC Charges will be included in a NERC/WECC Recalculation statement.
10.1 / The NERC/WECC Charges (either from the initial statement or recalculation statement) shall be invoiced using a NERC/WECC invoice type that is separate from the Market invoice type.
10.2 / For Settlements business implementation, the Scheduling Coordinator mentioned in the Tariff shall be identified using the Business Associate (BA) ID.
11.0 / In the event CAISO reassigns a Business Associates (BA) meter data quantity to another BA ID, meter data quantity PTBs will facilitate both reversing out and reassigning the original BA ID meter data quantity to another BA ID.
3.2Predecessor Charge Codes
Charge Code/ Pre-calc NameNone
MSS Netting PC
CC 6474 RT Unaccounted For Energy Settlement
3.3Successor Charge Codes
Charge Code/ Pre-calc NameNone
3.4Inputs-ExternalSystems
Row # / Variable Name / Description1 / PTBBusinessAssociateNERCWECCChargeAllocationAmt BJU’Umd / PTB BA NERC/WECC Charge Allocation Amount by BA ID B, PTB ID J,Trading Month m, Trading Day d, for the bill period year bounded by Bill Period Start U’ and Bill Period End U
2 / PTBBusinessAssociateNERCWECCMeteredDemandQty BJU’Umd / PTB BA NERC/WECC Metered Demand Quantity by BA ID B, PTB ID J,Trading Month m, Trading Day d, for the bill period year bounded by Bill Period Start U’ and Bill Period End U
31 / PTBBusinessAssociateNERCWECCChargeAdjustmentAmtBJmd / PTB BA NERC/WECC ChargeAdjustment by BA ID B, PTB ID J,Trading Month m, Trading Day d
2 / BusinessAssociateResourceStationPowerRemote3rdPartyorOnsiteMeteredQuantity Brtmdhi / The metered value for station power where Station Power type = REMT (remote), TPTY (third-party) and ONST (onsite) as specified in the Master File supplied for Business Associate B, Resource ID r for Trading Hour h and Settlement Interval i
3 / PTBNERCWECCFundingAmount UU’Jdy / CAISO NERC/WECC Assessment Year Invoice Received in the Trading Year y
4 / PTBPreviousYearsFinalNERCWECCChargeRate UU’Jdy / CAISO Previous Years Final NERC/WECC Charge Rate by Trading Year y
5 / PTBBusinessAssociateNERCWECCAdjustmentMeterDataQuantity BUU’Jd / PTB BA NERC/WECC Reassign or Reverse Meter Data Quantity by BA ID B, PTB ID J,Trading Day d,
6 / BusinessAssociateYearlyNERCWECCMeteredDemandQty BUU’d / Business Associates Yearly Metered Demand Quantity by B, U and U’
The BusinessAssociateYearlyNERCWECCMeteredDemandQty BUU’d is an output from a View which calculates the yearly summation of the monthly metered demand BusinessAssociateMonthlyNERCWECCMeteredDemandQuantity Bm and also adding the U and U’, the Bill period start date and the Bill period end date which are mapped to the first and the last date of the assessment year. (For example if the meter data is for 2010, the period start date will be January 1, 2010 and the period end date will be December 31, 2010). This will allow market participant to identify the trading year of the charge.
3.5Inputs - Predecessor Charge Codes or Pre-calculations
Row # / Variable Name / Predecessor Charge Code/Pre-calc Configuration
None
1 / BAResEntitySettlementIntervalMeteredCAISODemandQuantity BrtuT’I’Q’M’AA’F’R’pPW’QS’d’Nz’VvHn’L’mdhi / MSS Netting PC
2 / UDC_UFE uT’I’M’mdhi / CC 6474 RT Unaccounted for Energy Settlement
3 / UDC_Actual_Transmission_Loss uT’I’M’W’VL’mdhi / CC 6474 RT Unaccounted for Energy Settlement
3.6CAISO Formula
3.6.1The CAISO formula for BusinessAssociateNERCWECC Charge Allocation Amount by BA ID B, Trading Month m, Trading Day d is as follows:
BusinessAssociateNERCWECCChargeAllocationAmount Bmd = PTBBusinessAssociateNERCWECCChargeAllocationAmt BJU’Umd
3.6.2The total CAISO NERC WECC Metered Demand Quantity basis is as follows:
CAISONERCWECCMeteredDemandQuantity md = PTBBusinessAssociateNERCWECCMeteredDemandQty BJU’Umd
3.6.1The CAISO formula for BusinessAssociateNERCWECCAmount by BA ID B, Trading Year y is as follows:
3.6.1.1
BusinessAssociateNERCWECCAmount BUU’d = (-1) * (BusinessAssociateYearlyNERCWECCMeteredDemandQuantity BUU’d + BusinessAssociateNERCWECCMeteredDemandAdjustmentQuantity BUU’d ) * CAISONERCWECCPrice UU’d
3.6.1.2BusinessAssociateNERCWECCTotalLoadQuantity Bmdhi = BAResEntitySettlementIntervalMeteredCAISODemandQuantity BrtuT’I’Q’M’AA’F’R’pPW’QS’d’Nz’VvHn’L’mdhi
Where
Resource Type = ‘Load’
3.6.1.3BusinessAssociateNERCWECCTotalStationPowerLoadQuantity Bmdhi = BusinessAssociateResourceStationPowerRemote3rdPartyorOnsiteMeteredQuantity Brtmdhi
3.6.1.4BusinessAssociateNERCWECCTotalPumpStorageLoadQuantity Bmdhi = BAResEntitySettlementIntervalMeteredCAISODemandQuantity BrtuT’I’Q’M’AA’F’R’pPW’QS’d’Nz’VvHn’L’mdhi
Where
Resource Type = ‘LOAD’
And
Entity Component Type = ‘PMPST’
3.6.1.5BusinessAssociateNERCWECCNetLoadQuantity Bmdhi = BusinessAssociateNERCWECCTotalLoadQuantity Bmdhi - BusinessAssociateNERCWECCTotalStationPowerLoadQuantity Bmdhi - BusinessAssociateNERCWECCTotalPumpStorageLoadQuantity Bmdhi
3.6.1.6CAISONERCWECCNetLoadQuantity mdhi = BusinessAssociateNERCWECCNetLoadQuantity Bmdhi
3.6.1.7CAISONERCWECCUnaccountedForEnergyQuantity mdhi = UDC_UFE uT’I’M’mdhi
3.6.1.8CAISONERCWECCSumofUFEandTransmissionLossQuantity mdhi = CAISONERCWECCTransmissionLossQuantity mdhi - CAISONERCWECCUnaccountedForEnergyQuantity mdhi
3.6.1.9BusinessAssociateNERCWECCNetLoadRatio Bmdhi = BusinessAssociateNERCWECCNetLoadQuantity Bmdhi / CAISONERCWECCNetLoadQuantity mdhi
3.6.1.10BusinessAssociateNERCWECCSumofUFEandTransmissionLossQuantity Bmdhi = (BusinessAssociateNERCWECCNetLoadRatio Bmdhi * CAISONERCWECCSumofUFEandTransmissionLossQuantity mdhi
3.6.1.11BusinessAssociateNERCWECCMeteredDemandQuantity Bmdhi = BusinessAssociateNERCWECCNetLoadQuantity Bmdhi + BusinessAssociateNERCWECCSumofUFEandTransmissionLossQuantity Bmdhi
3.6.1.12BusinessAssociateDailyNERCWECCMeteredDemandQuantity Bmd = BusinessAssociateNERCWECCMeteredDemandQuantity Bmdhi
3.6.1.13BusinessAssociateMonthlyNERCWECCMeteredDemandQuantity Bm = BusinessAssociateDailyNERCWECCMeteredDemandQuantity Bmd
3.6.1.1BusinessAssociateYearlyNERCWECCMeteredDemandQty BUU’d = BusinessAssociateMonthlyNERCWECCMeteredDemandQuantity Bm
NOTE: The BusinessAssociateYearlyNERCWECCMeteredDemandQty Bm is an output from a View where Settlements calculates the yearly summation of the monthly metered demand BusinessAssociateMonthlyNERCWECCMeteredDemandQuantity Bm and also adding the U and U’, the Bill period start date and the Bill period end date which are mapped to the first and the last date of the assessment year. (For example is the meter data is for 2010, the period start date will be January 1, 2010 and the period end date will be December 31, 2010). This will allow market participant to identify the trading year of the charge. The BusinessAssociateYearlyNERCWECCMeteredDemandQty BUU’d will be reported as input in the market participant bill determinant file. The statement date will be the first date of the assessment year.
3.6.1.2BusinessAssociateYearlyNERCWECCMeteredDemandQuantity BUU’d = BusinessAssociateYearlyNERCWECCMeteredDemandQty BUU’d
3.6.1.3BusinessAssociateNERCWECCMeteredDemandAdjustmentQuantity BUU’d = PTBBusinessAssociateNERCWECCAdjustmentMeterDataQty BUU’Jd
3.6.1.4CAISONERCWECCMeteredDemandQuantity m = BusinessAssociateMonthlyNERCWECCMeteredDemandQuantity Bm
3.6.1.5CAISOYearlyNERCWECCMeteredDemandQuantity UU’d = BusinessAssociateYearlyNERCWECCMeteredDemandQuantity BUU’d
3.6.1.1If
PTBNERCWECCFundingAmount UU’Jd = 0
Then
CAISONERCWECCPrice UU’d = PTBPreviousYearsFinalNERCWECCChargeRate UU’Jd
Else
CAISONERCWECCPrice UU’d = (-1) *PTBNERCWECCFundingAmount UU’Jd / CAISOYearlyFinalNERCWECCMeteredDemandQuantity UU’d
3.6.1.2CAISONERCWECCMeteredDemandAdjustmentQuantity UU’d = PTBBusinessAssociateNERCWECCAdjustmentMeterDataQty BUU’Jd
3.6.1.3CAISOYearlyFinalNERCWECCMeteredDemandQuantity UU’d = CAISONERCWECCMeteredDemandAdjustmentQuantity UU’d + CAISOYearlyNERCWECCMeteredDemandQuantity UU’d
3.7Outputs
Row # / Name / Description1 / In addition to any outputs listed below, all inputs shall be included as outputs.
2 / BusinessAssociateNERCWECCChargeAllocationAmount Bmd / Business Associate NERC/WECC Charge Allocation Amount by BA ID B, Trading Month M, Trading Day d
3 / CAISONERCWECCMeteredDemandQuantity md / CAISO NERC/WECC Metered Demand Quantity by Trading Month m, Trading Day d
2 / BusinessAssociateNERCWECCAmount BUU’d / Business Associate NERC/WECC Amount by BA ID B, Trading Year y
3 / BusinessAssociateNERCWECCTotalLoadQuantity Bmdhi / Business Associate Total Load by BA ID B, Trading Month m, Trading Day d, Trading Hour h, Settlement Interval i.
4 / BusinessAssociateNERCWECCTotalStationPowerLoadQuantity Bmdhi / Business Associate Total Station Power Load by BA ID B, Trading Month m, Trading Day d, Trading Hour h, Settlement Interval i.
5 / BusinessAssociateNERCWECCTotalPumpStorageLoadQuantity Bmdhi / Business Associate Total Pump Storage Load by BA ID B, Trading Month m, Trading Day d, Trading Hour h, Settlement Interval i.
6 / BusinessAssociateNERCWECCNetLoadQuantity Bmdhi / Business Associate Net Load by BA ID B, Trading Month m, Trading Day d, Trading Hour h, Settlement Interval i.
7 / CAISONERCWECCNetLoadQuantity mdhi / CAISO Net Load by Trading Month m, Trading Day d, Trading Hour h, Settlement Interval i.
8 / CAISONERCWECCUnaccountedForEnergyQuantity mdhi / CAISO UFE Quantity by Trading Month m, Trading Day d, Trading Hour h, Settlement Interval i.
9 / CAISONERCWECCTransmissionLossQuantity mdhi / CAISO Transmission Loss Quantity by Trading Month m, Trading Day d, Trading Hour h, Settlement Interval i.
10 / BusinessAssociateNERCWECCSumofUFEandTransmissionLossQuantity Bmdhi / Business Associate percentage sum of Transmission Loss and UFE Quanties by BA ID B, Trading Month m, Trading Day d, Trading Hour h, Settlement Interval i.
11 / BusinessAssociateNERCWECCMeteredDemandQuantity Bmdhi / Business Associate NERC/WECC Metered Demand Quantity by BA ID B, Trading Month m, Trading Day d, Trading Hour h, Settlement Interval i.
12 / BusinessAssociateDailyNERCWECCMeteredDemandQuantity Bmd / Business Associate NERC/WECC Metered Demand Quantity by BA ID B, Trading Month m, Trading Day d
13 / BusinessAssociateMonthlyNERCWECCMeteredDemandQuantity Bm / Business Associate NERC/WECC Metered Demand Quantity by BA ID B, Trading Month m.
14 / CAISONERCWECCMeteredDemandQuantity m / CAISO NERC/WECC Metered Demand Quantity by Trading Month m
15 / CAISONERCWECCPrice UU’d / CAISO NERC/WECC Price by Trading Year y
The PTBNERCWECCFundingAmount UU’Jdy utilized in this calculation will always be a value larger than zero (0) and it will also not be available during the Preliminary calculation.
16 / CAISONERCWECCSumofUFEandTransmissionLossQuantity mdhi / CAISO sum of Transmission Loss and UFE Quantities by Trading Month m, Trading Day d, Trading Hour h, Settlement Interval i.
17 / BusinessAssociateNERCWECCNetLoadRatio Bmdhi / Business Associates Net Load divided by the Total CAISO LOAD. By Trading Month m, Trading Day d, Trading Hour h and Settlements Interval i
18 / CAISOYearlyNERCWECCMeteredDemandQuantity UU’d / CAISO NERC/WECC Metered Demand Quantity by Trading Year y
19 / BusinessAssociateYearlyNERCWECCMeteredDemandQuantity BUU’d / Business Associate NERC/WECC Metered Demand Quantity by BA ID B, Trading Year y
20 / CAISOYearlyFinalNERCWECCMeteredDemandQuantity UU’d / CAISO NERC/WECC Final Metered Demand Quantity by Trading Year y
21 / CAISONERCWECCMeteredDemandAdjustmentQuantity UU’d / CAISO NERC/WECC Adjusted Metered Demand Quantity by Trading Year y