Configuration Guide for: NERC WECC Charge / Date: 05/10/11
Settlements & Billing
BPM Configuration Guide: NERC WECC Charge
CC 6490
Version 5.0
ÓCAISO, 2011 / Page 8 of 9Settlements & Billing / Version: 5.0
Configuration Guide for: NERC WECC Charge / Date: 05/10/11
Table of Contents
1. Purpose of Document 3
2. Introduction 3
2.1 Background 3
2.2 Description 3
3. Charge Code Requirements 4
3.1 Business Rules 4
3.2 Predecessor Charge Codes 6
3.3 Successor Charge Codes 6
3.4 Inputs - External Systems 6
3.5 Inputs - Predecessor Charge Codes or Pre-calculations 7
3.6 CAISO Formula 8
3.7 Outputs 8
4. Charge Code Effective Dates 8
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
2.1 Background
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.
2.2 Description
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 Charge amount 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 in an initial statement, while the final charge mentioned in the Tariff shall be reflected in a recalculation 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.
3. Charge Code Requirements
3.1 Business Rules
Bus Req ID / Business Rule /1.0 / 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.
4.2 / Scheduling Coordinators have sixty 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.
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.
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.
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.
3.2 Predecessor Charge Codes
Charge Code/ Pre-calc Name /None
3.3 Successor Charge Codes
Charge Code/ Pre-calc Name /None
3.4 Inputs - External Systems
Row # / Variable Name / Description /1 / 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
3 / PTBBusinessAssociateNERCWECCChargeAdjustmentAmt BJmd / PTB BA NERC/WECC Charge Adjustment by BA ID B, PTB ID J,Trading Month m, Trading Day d
3.5 Inputs - Predecessor Charge Codes or Pre-calculations
Row # / Variable Name / Predecessor Charge Code/Pre-calc Configuration
None
3.6 CAISO Formula
3.6.1 The 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
3.6.2 The total CAISO NERC WECC Metered Demand Quantity basis is as follows:
CAISONERCWECCMeteredDemandQuantity md = PTBBusinessAssociateNERCWECCMeteredDemandQty BJU’Umd
3.7 Outputs
Row # / Name / Description /1 / 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
4. Charge Code Effective Dates
Charge Code/Pre-calc Name / Document Version / Effective Start Date / Effective End Date / Version Update Type /
CC 6490 NERC WECC Charge / 5.0 / 01/01/10 / Open / Configuration Impacted
ÓCAISO, 2011 / Page 8 of 9