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Nodal Settlement for QSEs & CRR Acct Holders/Owners

Commercial Operations Subcommittee2/13/2007

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Nodal Protocols – Section 16

16.1 Qualification, Registration, and Execution of Agreements(1) ERCOT shall require each Market Participant to

register and execute the applicable standard Agreements from the following list:

(a) Qualified Scheduling Entity (QSE) Agreement;(b) Load Serving Entity Agreement;(c) Transmission and/or Distribution Service

Provider (TDSP) Agreement;(d) Resource Entity Agreement;(e) Renewable Energy Credit Account Holder

Agreement;(f) Congestion Revenue Rights Account

Holder Agreement;(g) Reliability Must-Run Agreement; and(h) Black Start Agreement.

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Nodal Settlements – QSEs & CRR Acct Holders/Owners

CRR Account Holders vs. CRR Owners. CRR Account Holder – Entity is registered with ERCOT as a CRR Account

Holder and may or may not have offered for and paid for CRR product. CRR Owner – Entity is a registered CRR Account Holder and has

purchased and paid for CRR product. Assumption: QSEs and CRR Holders/Owners will register as separate

entities. QSEs and CRR Holders/Owners will receive separate Settlement

Statements (DAM and RT) and Invoices (DAM and RT). Similar to Sub-QSE relationships in Zonal system.

CRR-related settlement charge and payment types that will appear on CRR Holder/Owner statements and invoices.

These include for DAM: DAOBLAMT, DAOBLRAMT, DAFGRAMT, DAOPTAMT, DAOPTRAMT, DACRRSAMT.

These include for RT: RTOPTAMT, RTOPTRAMT, RTCRRSAMT. CRR-related settlement charge and payment types that will appear

on QSE statements and invoices. RTOBL (Real-Time Obligation per QSE) is a CRR product purchased in

DAM by QSEs. Do not have to be a registered CRR entity to purchase these products.

DARTOBLAMT and RTOBLAMT will appear on QSE DAM Statements and RT Statements respectively.

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Appendix – Bill Determinant Descriptions

DAOBLAMT – Payments and Charges for PTP Obligations Settled in DAM

DAOBLRAMT - Payments and Charges for PTP Obligations with Refund Settled in DAM

DAFGRAMT - Payments for FGR Settled in DAM DAOPTAMT - Payments for PTP Options Settled in DAM DAOPTRAMT - Payments for PTP Options with Refund Settled in

DAM DACRRSAMT - Day-Ahead Shortfall Charges to CRR Owners RTOPTAMT - Payments for NOIE’s PTP Options Settled in Real-

Time RTOPTRAMT - Payments for NOIE’s PTP Options with Refund

Settled in Real-Time RTCRRSAMT - Real-Time Shortfall Charges to CRR Owners DARTOBLAMT – Settlement for PTP Obligations bought in DAM RTOBLAMT - Payments and Charges for PTP Obligations bought in

DAM and Settled in Real-Time