CAISO

Settlements & Billing

BPM Configuration Guide: BPM - CG CC 7989 Invoice Deviation Interest Distribution

CC 7989

Version 5.01 Settlements & Billing Version: 5.01 Configuration Guide for: BPM - CG CC 7989 Invoice Deviation Interest Distribution Date: 05/19/09021/1520/11

Table of Contents

1. Purpose of Document 3

2. Introduction 3 2.1 Background 3 2.2 Description 3

3. Charge Code Requirements 5 3.1 Business Rules 5 3.2 Predecessor Charge Codes 7 3.3 Successor Charge Codes 7 3.4 Inputs – External Systems 8 3.5 Inputs - Predecessor Charge Codes or Pre-calculations 12 3.6 CAISO Formula 13 3.7 Outputs 13

4. Charge Code Effective Date 13

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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 7989 to assess and apply interest, by Scheduling Coordinator, CRR Holder, Black Start Generator or Participating TO, to deviations for each Trading Month between: (i) each Initial Settlement Statement T+7B (invoiced semi-monthly) and Recalculation Settlement Statement T+ 38B (invoiced monthly); and (ii) Recalculation Settlement Statement T+38B (invoiced monthly) and Recalculation Settlement Statement T+76B (invoiced monthly); (iii) Recalculation Settlement Statement T+76B (invoiced monthly) and Rerun Settlement Statement T+18M (invoiced monthly); (iv) Rerun Settlement Statement T+18M (invoiced monthly) and Rerun Settlement Statement T+35M (invoiced monthly); and, (v) Rerun Settlement Statement T+35M (invoiced monthly) and Rerun Settlement Statement T+36M (invoiced monthly).1

2. Introduction

2.1 Background

The CAISO’s payment acceleration program significantly shortens the time period in which the CAISO invoices and settles market transactions. Under payment acceleration, the timeframe for the CAISO’s release of its Initial Settlement Statement for each Trading Day is reduced from 38 to 7 Business Days and the payment timeline isare reduced, which shortens from 38 Business Days after the last Trading Day of the month through semi-monthly invoicing. As a result, the average cash clearing schedule is shortened from approximately 80 to 25 calendar days. The shorter cash clearing schedule reduces the amount of outstanding market charges and payments, and exposes Market Participants to less credit risk.

Under the payment acceleration program, the CAISO charges or pays interest, by Scheduling Coordinator, CRR Holder, Black Start Generator or Participating TO, for each Trading Month based on deviations between: (i) each Initial Settlement Statement T+7B and Recalculation Settlement Statement T+ 38B; and (ii) Recalculation Settlement Statement T+38B and Recalculation Settlement Statement T+76B; and (iii) succeeding deviations between two consecutive settlement statements(iii) Recalculation Settlement Statement T+76B and Rerun Settlement Statement T+18M; (iv) Rerun Settlement Statement T+18M and Rerun Settlement Statement T+35M; and, (v) Rerun Settlement Statement T+35M and Rerun Settlement Statement T+36M.

The application of interest ensures that the time value of money is properly

1 Capitalized terms in this Configuration Guide have the same meaning as set forth in (i) CAISO Tariff, Appendix A, Master Definitions Supplement, (ii) the BPM for Settlements and Billing, Section 8.2, Sign & Subscript Conventions, or (ii) this Configuration Guide.

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accounted for when Market Participants initially are overcharged or undercharged due to estimated Meter Data, updates to SQMD Meter Data, and price adjustments on Invoices generated semi-monthly at T+7B. The interest provision is also intended to eliminate financial incentive to submit unreasonable estimates of Meter Data for the Initial Settlement Statement T+7B.

2.2 Description

Interest will be charged or paid through new separate Charge Codes (7989 and 7999) in the CAISO Settlements system. These Charge Codes will be based on deviations for each Trading Month, by Scheduling Coordinator, CRR Holder, Black Start Generator or Participating TO, between: (i) each Initial Settlement Statement T+7B and Recalculation Settlement Statement T+ 38B; and (ii) Recalculation Settlement Statement T+38B and Recalculation Settlement Statement T+76B; and (iii) succeeding deviations between two consecutive settlement statementsRecalculation Settlement Statement T+76B and Rerun Settlement Statement T+18M; Rerun Settlement Statement T+18M and Rerun Settlement Statement T+35M; and, Rerun Settlement Statement T+35M and Rerun Settlement Statement T+36M.

There are three variables used to calculate the interest applicable to the deviations:

 FERC annual rate of interest  Number of interest days; and  The amount of each deviation.

Because invoicing occurs semi-monthly and is based on statements ranging in date from the 1st to the 15th of the month and from the 16th to the end of the month, the deviation must be determined for each Trading Month between:  the Recalculated Settlement Statement T+38B and each semi-monthly initial Invoice;  the Recalculated Settlement Statement T+76B and the Recalculated Settlement Statement T+38B;  the Rerun Settlement Statement T+18M and the Recalculated Settlement Statement T+76B;  the Rerun Settlement Statement T+35M and the Rerun Settlement Statement T+18M, if necessary; and,  the Rerun Settlement Statement T+36M and the Rerun Settlement Statement T+35M, if necessary must be determined.

Four Seven bill determinants are required to record total amounts of the Initial Settlement Statements T+7B from the 1st to the 15th and the 16th to the end of the month, as well as total amounts of the Recalculation Settlement Statement T+38B, and Recalculation Settlement Statement T+76B, Rerun Settlement Statement T+18M, Rerun Settlement Statement T+35M, and Rerun Settlement Statement T+36M for the same Trading Month. For clarification, the following terms are used to identify these amounts.

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 Initial_1 is the total amount for the Initial Settlement Statements T+7B from the 1st to the 15th.  Initial_2 is the total amount for the Initial Settlement Statements T+7B from the 16th to the end of the month.  TrueUp_1 is the total amount for Recalculation Settlement Statement T+38B for the Trading Month that corresponds with Initial_1 and Initial_2.  TrueUp_2 is the total amount for Recalculation Settlement Statement T+76B for the Trading Month that corresponds with Initial_1 and Initial_2.  TrueUp_3 is the total amount for Rerun Settlement Statement T+18M for the Trading Month that corresponds with Initial_1 and Initial_2.  TrueUp_4 is the total amount for Rerun Settlement Statement T+35M for the Trading Month that corresponds with Initial_1 and Initial_2.  TrueUp_5 is the total amount for Rerun Settlement Statement T+36M for the Trading Month that corresponds with Initial_1 and Initial_2.

Interest charged or paid will be calculated back to the due date of the initial Invoices; therefore, bill determinants are required to determine the number of days of interest between these due dates.

If the due dates between the initial Invoice containing Initial Settlement Statements T+7B and the initial Invoice containing Recalculation Settlement Statement T+38B, or Recalculation Settlement Statement T+76B, Rerun Settlement Statement T+18M, Rerun Settlement Statement T+35M or Rerun Settlement Statement T+36M span calendar quarters, then interest is compounded quarterly. Since the due dates between an initial Invoice containing Initial Settlement Statements T+7B and Recalculation Rerun Settlement Statement T+76B 36M can span at most threeseveral calendar quarters, 1534 bill determinants are defined to record the applicable FERC interest rate for each of those quarters.

Finally, if the interest calculated results in a payment to a Scheduling Coordinator, CRR Holder, Black Start Generator or Participating TO, the Charge Code to be used is 7989. If the interest calculated results in payment to the CAISO by the Scheduling Coordinator, CRR Holder, Black Start Generator or Participating TO, the Charge Code to be used is 7999. Charge Code 7989 will be discussed in this configuration document.

3. Charge Code Requirements

3.1 Business Rules

Bus Req Business Rule ID Invoice deviation interest distribution is provided by Market Clearing 1.0 to Settlements.

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Bus Req Business Rule ID A business requirement exists that invoice deviation interest 2.0 distribution appears on the first available initial Invoice. The Trading Day will always reflect either the 15th or end of month Trading Days. Settlements receives from Market Clearing supporting data which is 3.0 provided to the Market Participants for validation purposes. FERC published annual interest rate may change on a quarterly 4.0 basis. ‘From Date’ is defined as the due date for initial Invoice or beginning 5.0 of quarter date. ‘From Date Type’ is defined as a set of enumerations that indicate what type the ‘From Date’ represents and the set of values are: ‘Initial 1 Due Date’, ‘Initial 2 Due Date’, ‘BOQ1 Date’, ‘BOQ2 Date’, 5.1 ‘BOQ3 Date’, ‘BOQ4 Date’, ‘BOQ5 Date’, ‘BOQ6 Date’, ‘BOQ7 Date’, ‘BOQ8 Date’, ‘BOQ9 Date’, ‘BOQ10 Date’, ‘BOQ11 Date’, ‘BOQ12 Date’, ‘BOQ13 Date’, ‘BOQ14 Date’ and ‘BOQ315 Date’. ‘To Date’ is defined as the due date of true up adjustment Invoice or 6.0 end of quarter date. ‘To Date Type’ is defined as a set of enumerations that indicate what type the ‘To Date’ represents and the set of values are: ‘True Up 1 Due Date’, ‘True Up 2 Due Date’, ‘True Up 3 Due Date’, ‘True Up 4 6.1 Due Date’, ‘True Up 5 Due Date’, ‘EOQ1 Date’, ‘EOQ2 Date’, ‘EOQ3 Date’, ‘EOQ4 Date’, ‘EOQ5 Date’, ‘EOQ6 Date’, ‘EOQ7 Date’, ‘EOQ8 Date’, ‘EOQ9 Date’, ‘EOQ10 Date’, ‘EOQ11 Date’, ‘EOQ12 Date’, ‘EOQ13 Date’, ‘EOQ14 Date’ and ‘EOQ315 Date’. The difference between ‘From Date’ and ‘To Date’ determines the 7.0 number of days used in the interest calculation formula 8.0 FROM_DATE_TYPE VALUE DESCRIPTION Initial_1_Due_Date 1st initial Invoice due date Initial_2_Due_Date 2nd initial Invoice due date BOQ1_Date Beginning of 1st quarter date BOQ2_Date Beginning of 2nd quarter date BOQ3_Date Beginning of 3rd quarter date BOQ4_Date Beginning of 4th quarter date BOQ5_Date Beginning of 5th quarter date BOQ6_Date Beginning of 6th quarter date BOQ7_Date Beginning of 7th quarter date

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Bus Req Business Rule ID BOQ8_Date Beginning of 8th quarter date BOQ9_Date Beginning of 9th quarter date BOQ10_Date Beginning of 10th quarter date BOQ11_Date Beginning of 11th quarter date BOQ12_Date Beginning of 12th quarter date BOQ13_Date Beginning of 13th quarter date BOQ14_Date Beginning of 14th quarter date BOQ15_Date Beginning of 15th quarter date

TO_DATE_TYPE VALUE DESCRIPTION True_Up_1_Due_Date 1st true-up adjustment Invoice due date True_Up_2_Due_Date 2nd 1st true-up adjustment Invoice due date True_Up_3_Due_Date 3rd true-up adjustment Invoice due date True_Up_4_Due_Date 4th true-up adjustment Invoice due date True_Up_5_Due_Date 5th true-up adjustment Invoice due date EOQ1_Date End of 1st quarter date EOQ2_Date End of 2nd quarter date EOQ3_Date End of 3rd quarter date EOQ4_Date End of 4th quarter date EOQ5_Date End of 5th quarter date EOQ6_Date End of 6th quarter date EOQ7_Date End of 7th quarter date EOQ8_Date End of 8th quarter date EOQ9_Date End of 9th quarter date EOQ10_Date End of 10th quarter date EOQ11_Date End of 11th quarter date EOQ12_Date End of 12th quarter date

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Bus Req Business Rule ID EOQ13_Date End of 13th quarter date EOQ14_Date End of 14th quarter date EOQ15_Date End of 15th quarter date

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 # Interest amount to be paid to the Market Participant due to BADayInvoiceDeviationInterestDistri negative invoice deviation as a 1 financial adjustment by Business bution BU’Umd Associate ID (B), Bill Period Start (U’), Bill Period End (U), Trading Month (m) and Trading Day (d). BADayInitialInvoice1stToMidMonthA Amount of the first initial Invoice mount BV’U’UFF”md issued to the Market Participant for the period 1st through the 15th of the month by Business Associate ID (B), Invoice 2 Reference Number (V’), Bill Period Start (U’), Bill Period End (U), Invoice From Date (F), Invoice From Date Type (F”), Trading Month (m) and Trading Day (d).

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Row Variable Name Description # BADayInitialInvoiceMidMonthToEnd Amount of the second initial OfMonthAmount BV’U’UFF”md Invoice issued to the Market Participant for the period 16th through the end of the month by Business Associate ID (B), 3 Invoice Reference Number (V’), Bill Period Start (U’), Bill Period End (U), Invoice From Date (F), Invoice From Date Type (F”), Trading Month (m), and Trading Day (d). BADay1stTrueUpInvoiceAmount Amount of the 1st true-up BV’U’UTT”md adjustment issued to the Market Participant at T+38B for the period 1st through the end of the month by Business Associate ID 4 (B), Invoice Reference Number (V’), Bill Period Start (U’), Bill Period End (U), Invoice To Date (T) Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). BADay2ndTrueUpInvoiceAmount Amount of the 2nd true-up BV’U’UTT”md adjustment issued to the Market Participant at T+76B for the period 1st through the end of the month by Business Associate ID 5 (B), Invoice Reference Number (V’), Bill Period Start (U’), Bill Period End (U), Invoice To Date (T) Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). BADay3rdTrueUpInvoiceAmount Amount of the 3rd true-up BV’U’UTT”md adjustment issued to the Market Participant at T+18M for the period 1st through the end of the month by Business Associate ID 6 (B), Invoice Reference Number (V’), Bill Period Start (U’), Bill Period End (U), Invoice To Date (T) Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). 7 BADay4thTrueUpInvoiceAmount Amount of the 4th true-up BV’U’UTT”md adjustment issued to the Market

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Row Variable Name Description # Participant at T+35M for the period 1st through the end of the month by Business Associate ID (B), Invoice Reference Number (V’), Bill Period Start (U’), Bill Period End (U), Invoice To Date (T) Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). BADay5thTrueUpInvoiceAmount Amount of the 5 th true-up BV’U’UTT”md adjustment issued to the Market Participant at T+36M for the period 1 st through the end of the month by Business Associate ID 8 (B), Invoice Reference Number (V’), Bill Period Start (U’), Bill Period End (U), Invoice To Date (T) Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). NumberOfInterestDaysBetween1stIni Number of Interest days between tialAndTrueup 1st Initial Invoice and true up FF”TT”md adjustment by Invoice From Date 69 (F), Invoice From Date Type (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). NumberOfInterestDaysBetween2ndI Number of Interest days between nitialAndTrueup 2nd Initial Invoice and true up FF”TT”md adjustment by Invoice From Date 710 (F), Invoice From Date Type (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). NumberOfInterestDaysBetween1stIni Number of Interest days between tialAndEndOfQuarter 1st Initial Invoice and end of FF”TT”md quarter by Invoice From Date (F), 811 Invoice From Date Type (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). 912 NumberOfInterestDaysBetween2ndI Number of Interest fays between nitialAndEndOfQuarter 2nd Initial Invoice and end of FF”TT”md quarter by Invoice From Date (F), Invoice From Date Type (F”), Invoice To Date (T), Invoice To

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Row Variable Name Description # Date Type (T”), Trading Month (m), and Trading Day (d). NumberOfInterestDaysBetweenBegi Number of Interest days between nningOfQuarterAndEndOfQuarter beginning of quarter and end of FF”TT”md quarter by Invoice From Date (F), 1013 Invoice From Date Type (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). NumberOfInterestDaysBetweenBegi Number of Interest days between nningOfQuarterAndTrueUp beginning of quarter and true up FF”TT”md adjustment by Invoice From Date 1114 (F), Invoice From Date Type (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). FERCQuarterlyDailyInterestRate FERC quarterly daily Interest rate FF”TT”md by Invoice From Date (F), Invoice From Date Type (F”), Invoice To 1215 Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). 2ndRequiredFERCInterestRate Second required FERC Interest FF”TT”md rate by Invoice From Date (F), Invoice From Date Type (F”), 1316 Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). 3rdRequiredFERCInterestRate Third required FERC Interest rate FF”TT”md by Invoice From Date (F), Invoice From Date Type (F”), Invoice To 1417 Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d). 4thRequiredFERCInterestRate Fourth required FERC Interest FF”TT”md rate by Invoice From Date (F), Invoice From Date Type (F”), 18 Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d). 5thRequiredFERCInterestRate Fifth required FERC Interest rate FF”TT”md by Invoice From Date (F), Invoice From Date Type (F”), Invoice To 19 Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d).

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Row Variable Name Description # 6thRequiredFERCInterestRate Sixth required FERC Interest rate FF”TT”md by Invoice From Date (F), Invoice From Date Type (F”), Invoice To 20 Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d). 7thRequiredFERCInterestRate Seventh required FERC Interest FF”TT”md rate by Invoice From Date (F), Invoice From Date Type (F”), 21 Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d). 8thRequiredFERCInterestRate Eighth required FERC Interest FF”TT”md rate by Invoice From Date (F), Invoice From Date Type (F”), 22 Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d). 9thRequiredFERCInterestRate Ninth required FERC Interest rate FF”TT”md by Invoice From Date (F), Invoice From Date Type (F”), Invoice To 23 Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d). 10thRequiredFERCInterestRate Tenth required FERC Interest FF”TT”md rate by Invoice From Date (F), Invoice From Date Type (F”), 24 Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d). 11thRequiredFERCInterestRate Eleventh required FERC Interest FF”TT”md rate by Invoice From Date (F), Invoice From Date Type (F”), 25 Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d). 12thRequiredFERCInterestRate Twelfth required FERC Interest FF”TT”md rate by Invoice From Date (F), Invoice From Date Type (F”), 26 Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d). 27 13thRequiredFERCInterestRate Thirteenth required FERC Interest FF”TT”md rate by Invoice From Date (F), Invoice From Date Type (F”), Invoice To Date (T), Invoice To

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Row Variable Name Description # Date Type (T”), Trading Month (m) and Trading Day (d). 14thRequiredFERCInterestRate Fourteenth required FERC FF”TT”md Interest rate by Invoice From Date (F), Invoice From Date Type 28 (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d). 15thRequiredFERCInterestRate Fifteenth required FERC Interest FF”TT”md rate by Invoice From Date (F), Invoice From Date Type (F”), 29 Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m) and Trading Day (d).

3.5 Inputs - Predecessor Charge Codes or Pre-calculations

Predecessor Charge Code/ Row # Variable Name Pre-calc Configuration None

3.6 CAISO Formula

BADayInvoiceDeviationInterestDistributionAmount BU’Umd =

BADayInvoiceDeviationInterestDistribution BU’Umd

Implementation Note: In order to avoid duplicated records, the above charge type output shall not be provided. However, the input, BADayInvoiceDeviationInterestDistribution BU’Umd , shall be provided in the BD files. Supporting data inputs identified in the Inputs section shall also be provided in the BD files. For the supporting data, no corresponding charge types shall be created.

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BADayInitialInvoice1stToMidMonthSupportDataAmount BV’U’UFF”md = BADayInitialInvoice1stToMidMonthAmount BV’U’UFF”md

BADayInitialInvoiceMidMonthToEndOfMonthSupportDataAmount BV’U’UFF”md = BADayInitialInvoiceMidMonthToEndOfMonthAmount BV’U’UFF”md

BADay1stTrueUpInvoiceSupportDataAmount BV’U’UTT”md = BADay1stTrueUpInvoiceAmount BV’U’UTT”md

BADay2ndTrueUpInvoiceSupportDataAmount BV’U’UTT”md = BADay2ndTrueUpInvoiceAmount BV’U’UTT”md

NumberOfInterestDaysBetween1stInitialAndTrueUpSupportData FF”TT”md = NumberOfInterestDaysBetween1stInitialAndTrueup FF”TT”md

NumberOfInterestDaysBetween2ndInitialAndTrueUpSupportData FF”TT”md =

NumberOfInterestDaysBetween2ndInitialAndTrueup FF”TT”md

NumberOfInterestDaysBetween1stInitialAndEndOfQuarterSupportData FF”TT”md = NumberOfInterestDaysBetween1stInitialAndEndOfQuarter FF”TT”md

NumberOfInterestDaysBetween2ndInitialAndEndOfQuarterSupportData FF”TT”md = NumberOfInterestDaysBetween2ndInitialAndEndOfQuarter FF”TT”md

NumberOfInterestDaysBetweenBeginningOfQuarterAndEndOfQuarterSupportData FF”TT”md = NumberOfInterestDaysBetweenBeginningOfQuarterAndEndOfQuarter FF”TT”md

NumberOfInterestDaysBetweenBeginningOfQuarterAndTrueUpSupportData FF”TT”md = NumberOfInterestDaysBetweenBeginningOfQuarterAndTrueUp FF”TT”md

FERCQuarterlyDailyInterestSupportDataRate FF”TT”md = FERCQuarterlyDailyInterestRate FF”TT”md

2ndRequiredFERCInterestSupportDataRate FF”TT”md = 2ndRequiredFERCInterestRate FF”TT”md

3rdRequiredFERCInterestSupportDataRate FF”TT”md = 3rdRequiredFERCInterestRate FF”TT”md

3.7 Outputs

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Output Req. Name Description ID All external inputs shall be included as outputs. The total amount of interest to be paid to the Market Participant due to a negative Invoice deviation by Business Associate ID (B) Bill Period Start (U’), BADayInvoiceDeviationInterestDistributionA Bill Period End (U), 1 mount BU’Umd Trading month (m), and Trading Day (d).

Note: This charge type shall not be provided, but the pass-thru input data feeding it shall be provided in the BD files. BADayInitialInvoice1stToMidMonthSupport Amount of the first initial DataAmount BV’U’UFF”md Invoice issued to the Market Participant for the period 1st through the 15th of the month by Business Associate ID (B), Invoice Reference 2 Number (V’), Bill Period Start (U’), Bill Period End (U), Invoice From Date (F), Invoice From Date Type (F”), Trading Month (m), and Trading Day (d).

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Output Req. Name Description ID BADayInitialInvoiceMidMonthToEndOfMont Amount of the second hSupportDataAmount BV’U’UFF”md initial Invoice issued to the Market Participant for the period 16th through the end of the month by Business Associate ID (B), 3 Invoice Reference Number (V’), Bill Period Start (U’), Bill Period End (U), Invoice From Date (F) Invoice From Date Type (F”), Trading Month (m), and Trading Day (d). BADay1stTrueUpInvoiceSupportDataAmou Amount of the 1st true- nt BV’U’UTT”md up adjustment issued to the Market Participant at T+38B for the period 1st through the end of the month by Business Associate ID (B), 4 Invoice Reference Number (V’), Bill Period Start (U’), Bill Period End (U), Invoice To Date (T) Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). BADay2ndTrueUpInvoiceSupportDataAmou Amount of the 2nd true- nt BV’U’UTT”md up adjustment issued to the Market Participant at T+76B for the period 1st through the end of the month by Business Associate ID (B), 5 Invoice Reference Number (V’), Bill Period Start (U’), Bill Period End (U), Invoice To Date (T) Invoice To Date Type (T”), Trading Month (m), and Trading Day (d).

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Output Req. Name Description ID NumberOfInterestDaysBetween1stInitialAnd Number of Interest days st TrueUpSupportData FF”TT”md between 1 initial Invoice and true up adjustment by Invoice From Date (F), Invoice 69 From Date Type (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). NumberOfInterestDaysBetween2ndInitialAn Number of Interest days dTrueUpSupportData FF”TT”md between 2nd initial Invoice and true up adjustment by Invoice From Date (F), Invoice 710 From Date Type (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). NumberOfInterestDaysBetween1stInitialAnd Number of Interest days EndOfQuarterSupportData FF”TT”md between 1st initial Invoice and end of quarter by Invoice From Date (F), Invoice From 811 Date Type (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). NumberOfInterestDaysBetween2ndInitialAn Number of Interest days dEndOfQuarterSupportData FF”TT”md between 2nd initial Invoice and end of quarter by Invoice From Date (F), Invoice From 912 Date Type (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d).

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Output Req. Name Description ID NumberOfInterestDaysBetweenBeginningO Number of Interest days fQuarterAndEndOfQuarterSupportData between beginning of FF”TT”md quarter and end of quarter by Invoice From Date (F), Invoice From 1013 Date Type (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). NumberOfInterestDaysBetweenBeginningO Number of Interest days fQuarterAndTrueUpSupportData FF”TT”md between beginning of quarter and true up adjustment by Invoice From Date (F), Invoice 1114 From Date Type (F”), Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). FERCQuarterlyDailyInterestSupportDataRat FERC quarterly daily e FF”TT”md Interest rate by Invoice From Date (F), Invoice From Date Type (F”), 1215 Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d). 2ndRequiredFERCInterestSupportDataRate Second required FERC FF”TT”md Interest rate by Invoice From Date (F), Invoice From Date Type (F”), 1316 Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d).

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Output Req. Name Description ID 3rdRequiredFERCInterestSupportDataRate Third required FERC FF”TT”md Interest rate by Invoice From Date (F), Invoice From Date Type (F”), 1417 Invoice To Date (T), Invoice To Date Type (T”), Trading Month (m), and Trading Day (d).

4. Charge Code Effective Date

Charge Code/ Document Effective Effective Version Pre-calc Name Version Start Date End Date Update Type Invoice Deviation Interest Open10/3 Configuration 5.0 11/01/09 Distribution (CC 1/09 Impacted 7989) Invoice Deviation Interest Configuration 5.1 11/01/09 Open Distribution (CC Impacted 7989)

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