Configuration Guide for: Monthly Rounding Adjustment Allocation / Date: 11/18/095/21/10
Settlements & Billing
BPM Configuration Guide: Monthly Rounding Adjustment Allocation
CC 4999
Version 5.23
ÓCAISO, 2010 / Page 2 of 9Settlements & Billing / Version: 5.23
Configuration Guide for: Monthly Rounding Adjustment Allocation / Date: 11/18/095/21/10
Table of Contents
1. Purpose of Document 3
2. Introduction 3
2.1 Background 3
2.2 Description 3
3. Charge Code Requirements 3
3.1 Business Rules 3
3.2 Predecessor Charge Codes 4
3.3 Successor Charge Codes 5
3.4 Inputs – External Systems 6
3.5 Inputs - Predecessor Charge Codes or Pre-calculations 6
3.6 CAISO Formula 8
3.7 Output Requirements 9
4. Charge Code Effective Date 9
1. Purpose of Document
The purpose of this document is to capture the requirements and design specification for a SaMC Charge Code in one document.
2. Introduction
2.1 Background
The Tariff authorizes the CAISO to levy additional charges or make additional payments to Market Participants to accommodate special adjustments with regards to:
· Amounts required to reach an accounting trial balance of zero in the course of the Settlement process in the event that the charges calculated as due from CAISO Debtors are not equal to the payments calculated as due to the CAISO Creditors for the same Trading Day.
· Awards payable by or to the CAISO pursuant to good faith negotiations or CAISO ADR Procedures that the CAISO is not able to allocate to or to collect from a Market Participant or Market Participants in accordance with CAISO Tariff Section 13.5.3.
These charges or payments will be allocated to Scheduling Coordinators pro rata to their Measured Demand in MWh of Energy.
2.2 Description
This Charge Code is used to calculate amounts associated with the first bulleted Tariff provision indicated above. That is, amounts that are required to reach an accounting trial balance of zero in the course of the Settlement process for Charge Codes that are calculated once a month. Imbalances result when the charges calculated owing from CAISO Debtors is not equal to the payments calculated to the CAISO Creditors for the same Trading Month; that is, in cases where there is not a zero balance of cash inflows and outflows.
The Monthly Rounding Settlement Amount is calculated by summing those imbalance amounts for Charge Groups which contain monthly Charge Codes that achieve revenue neutrality for the CAISO. To the extent the net imbalance is negative, and the CAISO under-collected as a result of rounding error, the CAISO will collect these amounts from Scheduling Coordinators pro rata based on their share of the total CAISO Measured Demand. To the extent the net imbalance for the month is positive and the CAISO over-collected as a result of rounding error, the CAISO will allocate the revenues to Scheduling Coordinators on the same basis.
This charge code will be implemented pursuant to a configuration enhancement procedure that allows for gains in performance, thereby reducing the volume of calculations executed during the monthly Settlement Run. The outcome of this feature is not published on the monthly Settlements Statements issued to participants. However, this enhancement procedure has no impact on the actual calculation of the settlement amounts determined by this Charge code. The performance enhancement is achieved through the availability of a feature that makes the results of (previously calculated) daily Settlement Runs available during to the CAISO operator for the monthly run in lieu of the operator having to re-execute daily calculations within the monthly Settlement Run. Additionally, this feature will provide the CAISO operator monthly totals of (previously calculated) daily outputs as well as monthly totals of primary bill determinants as needed. The CAISO will notify participants of which Charge Code uses this feature by including this statement in the description of the affected Charge Codes. In addition, the CAISO will indicate in the applicable CAISO Formula sections which of the individual calculations within the monthly run utilize this feature. Participants can verify the Settlement Amounts resulting from this Charge Code in their monthly calculations by utilizing the daily input data as defined in the input sections of each Charge Code, the amounts and/or quantities of which are published on the relevant, daily Settlement Statements.
3. Charge Code Requirements
3.1 Business Rules
Bus Req ID / Business Rule /1.0 / This charge is a monthly charge settled on the last day of corresponding Trading Month.
2.0 / Amounts required to reach an accounting trial balance of zero in the course of the Settlement process in the event that the charges calculated as due from CAISO Debtors are not equal to the payments calculated as due to the CAISO Creditors for the same Trading Month.
2.1 / This charge sums the imbalance amounts for each relevant Charge Group, reverses the sign, and allocates the sum to Scheduling Coordinators based on pro rata of their Measured Demand in MWh of Energy.
2.2 / The Monthly Rounding Settlement Amount is calculated monthly by summing those imbalance amounts for Charge Groups that achieve revenue neutrality.
2.2.1 / Charge Groups are specified in Section 3.4 of this BPM.
2.3 / This charge does not apply to Charge Groups that do not achieve revenue neutrality or are achieve revenue neutrality within the Charge Code such as Grid Management, FERC Fee, PIRP Forecast Fee and Emissions.
3.0 / If the net rounding amount for Charge Groups included in the Monthly Rounding Charge Code is a negative value, a charge (positive amount) is allocated to Measured Demand.
4.0 / If the net rounding amount for Charge Groups included in the Monthly Rounding Charge Code is a positive value, a payment (negative amount) is allocated to Measured Demand.
3.2 Predecessor Charge Codes
Charge Code/ Pre-calc Name /Measured Demand over Control Area Pre-calculation
Charge Group High Voltage Access Charge: contains CC 372 High Voltage Access Charge Allocation and CC 374 High Voltage Access Revenue Payment
Charge Group High Voltage Wheeling: contains CC 382 High Voltage Wheeling Allocation and CC 384 High Voltage Wheeling Revenue Payment
Charge Group Low Voltage Wheeling: contains CC 383 Low Voltage Wheeling Allocation and CC 385 - Low Voltage Wheeling Revenue Payment
Charge Group Participating Intermittent Resources: contains CC 711 Intermittent Resources Net Deviation Settlement and CC 721 Intermittent Resources Net Deviation Allocation CC 722 Intermittent Resources Net Deviation Reversal
Charge Group Participating Intermittent Export Energy: contains CC 751 Monthly Participating Intermittent Resources Export Energy Settlement and CC 752 Monthly Intermittent Resources Export Energy Allocation
Charge Group Black Start Capability: contains CC 3101 Black Start Capability Settlement and CC 1101 Black Start Capability Allocation
Charge Group Voltage Support: contains CC 302 Long Term Voltage Support Settlement and CC 1302 Long Term Voltage Support Allocation
Charge Group Neutrality: contains CC 8999 Neutrality Adjustment
Charge Group FERC Interest: contains CC 5999 FERC Mandated Interest on Reruns
Charge Group Interim Capacity Procurement Methodology (ICPM): contains CC 7820 Monthly ICPM Settlement, CC 7829 Monthly ICPM Allocation, CC 7890 Annual ICPM Settlement, CC 7899 Annual ICPM Allocation, CC 7870 Monthly Significant Event ICPM Settlement and CC 7879 Monthly Significant Event ICPM Allocation
Charge Group Declined HASP Bids: contains CC6455 Declined Hourly Pre-Dispatch Penalty Settlement and CC6457 Declined Hourly Pre-Dispatch Penalty Allocation
Charge Group Standard Capacity Product for Generators and Tie Gens (SCPGEN): contains CC 8820 Monthly Resource Adequacy Standard Capacity Product Allocation, CC8824 Monthly Resource Adequacy Standard Capacity Product Settlement, CC8826 Monthly Resource Adequacy Standard Capacity Product Measured Demand Allocation
Charge Group Standard Capacity Product for Non-Resource Specific System Resources (SCPNRSSR): contains CC8821 Monthly Non-Resource Specific System Resource Adequacy Standard Capacity Product Allocation, CC 8825 Monthly Non-Resource Specific System Resource Adequacy Standard Capacity Product Settlement, CC 8827 Monthly Non-Resource Specific System Resource Adequacy Standard Capacity Product Measured Demand Allocation
3.3 Successor Charge Codes
Charge Code/ Pre-calc Name /None
3.4 Inputs – External Systems
Row # / Variable Name / DescriptionNone
3.5 Inputs - Predecessor Charge Codes or Pre-calculations
Row # / Variable Name / Predecessor Charge Code/Pre-calc Configuration /
1 / BASettlementIntervalMeasuredDemandMinusRightsControlAreaQty_Ex1 Bmdhi / Measured Demand over Control Area Pre-calculation
2 / CAISOTotalSettlementIntervalMeasuredDemandMinusRightsControlAreaQty_Ex1 mdhi / Measured Demand over Control Area Pre-calculation
3 / HighVoltageAccessChargeChargeGroupTotal m / CC 372 - High Voltage Access Charge Allocation & CC 0374 - High Voltage Access Revenue Payment
4 / HighVoltageWheelingChargeGroupTotal m / CC 382 - High Voltage Wheeling Allocation & CC 384 - High Voltage Wheeling Revenue Payment
5 / LowVoltageWheelingChargeGroupTotal m / CC 383 – Low Voltage Wheeling Allocation & CC 385 - Low Voltage Wheeling Revenue Payment
6 / ParticipatingIntermittentResourcesChargeGroupTotal m / CC 711 - Intermittent Resources Net Deviation Settlement , CC 721 - Intermittent Resources Net Deviation Allocation & CC 722 – Intermittent Resources Net Deviation Reversal
7 / ParticipatingIntermittentExportEnergyChargeGroupTotal m / CC 751 - Monthly Participating Intermittent Resources Export Energy Settlement & CC 752 - Monthly Intermittent Resources Export Energy Allocation
8 / BlackStartCapabilityChargeGroupTotal m / CC 3101 Black Start Capability Settlement & CC 1101 - Black Start Capability Allocation
9 / VoltageSupportChargeGroupTotal m / CC 302 - Long Term Voltage Support Settlement & CC 1302 - Long Term Voltage Support Allocation
10 / NeutralityChargeGroupTotal m / CC 8999 – Neutrality Adjustment
11 / FERCInterestChargeGroupTotal m / CC 5999 - FERC Mandated Interest on Reruns
12 / ICPMChargeGroupTotal m / CC 7820 – Monthly ICPM Settlement, CC 7829 – Monthly ICPM Allocation, CC 7890 – Annual ICPM Settlement, CC 7899 – Annual ICPM Allocation, CC 7870 – Monthly Significant Event ICPM Settlement & CC 7879 – Monthly Significant Event ICPM Allocation
13 / DeclinedHASPBidsChargeGroupTotal m / CC 6455 – Declined Hourly Pre-Dispatch Penalty Settlement & CC 6457 – Declined Hourly Pre-Dispatch Penalty Allocation
14 / SCPGENChargeGroupTotal m / CC 8820 – Monthly Resource Adequacy Standard Capacity Product Allocation, CC 8824 – Monthly Resource Adequacy Standard Capacity Product Settlement, CC 8826 – Monthly Resource Adequacy Standard Capacity Product Measured Demand Allocation
15 / SCPNRSSRChargeGroupTotal m / CC 8821 – Monthly Non-Resource Specific System Resource Adequacy Standard Capacity Product Allocation, CC 8825 – Monthly Non-Resource Specific System Resource Adequacy Standard Capacity Product Settlement, CC 8827 – Monthly Non-Resource Specific System Resource Adequacy Standard Capacity Product Measured Demand Allocation
3.6 CAISO Formula
3.6.1 Rounding Allocation by Business Associate
MonthlyRoundingAllocationAmount Bm =
(BusinessAssociateMonthlyRoundingAllocationQuantity Bm * MonthlyRoundingPrice m )
3.6.1.1 Where
BusinessAssociateMonthlyRoundingAllocationQuantity Bm = BASettlementIntervalMeasuredDemandMinusRightsControlAreaQty_Ex1 Bmdhi
Note:BASettlementIntervalMeasuredDemandMinusRightsControlAreaQty_Ex1 Bmdhi is provided by the configuration enhancement procedure that returns the monthly quantity as a summation of Business Associate Settlement Interval Measured Demand Minus Rights Control Area Qty_Ex1 quantities generated previously from daily settlement calculation results for the applicable Trading month.
3.6.1.2 Where
MonthlyRoundingPrice m = MonthlyRoundingAmount m / MonthlyRoundingQuantity m
Where
MonthlyRoundingQuantity m =
CAISOTotalSettlementIntervalMeasuredDemandMinusRightsControlAreaQty_Ex1 mdhi
Note: CAISOTotalSettlementIntervalMeasuredDemandMinusRightsControlAreaQty_Ex1 mdhi
md is provided by the configuration enhancement procedure that returns the monthly quantity is a summation of CAISO Total Settlement Interval Measured Demand Minus Rights Control Area quantities generated previously from daily settlement calculation results for the applicable Trading month.
3.6.1.2.1 Where
MonthlyRoundingAmount m =
BlackStartCapabilityChargeGroupTotal m +
VoltageSupportChargeGroupTotal m + ParticipatingIntermittentResourcesChargeGroupTotal m +
ParticipatingIntermittentExportEnergyChargeGroupTotal m +
HighVoltageWheelingChargeGroupTotal m +
LowVoltageWheelingChargeGroupTotal m +
HighVoltageAccessChargeChargeGroupTotal m +
NeutralityChargeGroupTotal m +
FERCInterestChargeGroupTotal m +
ICPMChargeGroupTotal m +
DeclinedHASPBidsChargeGroupTotal m +
SCPGENChargeGroupTotal m +
SCPNRSSRChargeGroupTotal m
3.7 Output Requirements
Output Req ID / Name / Description /In addition to any outputs listed below, all inputs shall be included as outputs.
1 / MonthlyRoundingAllocationAmount Bm / The Rounding Allocation Amount attributed to Business Associate B, of Trading Month m.
2 / BusinessAssociateMonthlyRoundingAllocationQuantity Bm / The Rounding Allocation quantity attributed to Business Associate B, of Trading Month m.
3 / MonthlyRoundingPrice m / The Rounding Price calculated based on Monthly Rounding Amount and Measured Demand for Trading Month m.
4 / MonthlyRoundingAmount m / The Monthly Rounding amount for Trading Month m.
5 / MonthlyRoundingQuantity m / Monthly Rounding quantity for Trading month m.
4. Charge Code Effective Date
Charge Code/Pre-calc Name / Document Version / Effective Start Date / Effective End Date / Version Update Type /
CC 4999 – Rounding Adjustment Allocation / 5.0a / 04/01/09 / 3/31/09 / Documentation Edits Only
CC 4999 – Rounding Adjustment Allocation / 5.1 / 4/1/09 / 12/31/09 / Configuration Impacted
CC 4999 – Rounding Adjustment Allocation / 5.2 / 1/1/10 / Open3/31/09 / Configuration Impacted
CC 4999 – Rounding Adjustment Allocation / 5.3 / 4/1/09 / Open / Configuration Impacted
ÓCAISO, 2010 / Page 2 of 9