August 10, 2010

COPS

Nodal EILS Update

Mandy Bauld

2

Topic Refresher

• Earlier this year ERCOT brought options regarding the methodology to invoice the EILS payments and charges in Nodal– Options: Miscellaneous Invoice vs. Miscellaneous Debit/Credit

line item on a settlement statement– Decision: Use the Miscellaneous Debit/Credit functionality

(PUCT requirement to put it on a statement for an Op Day)– Take-Away: ERCOT continue to evaluate possibilities of a more

robust solution (that doesn’t require system change) and the possibility of getting EILS data into the settlement extracts

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Follow-Up on ERCOT Take-Away

• ERCOT has confirmed a data-driven approach that, without system change, will enable the following:– Inclusion of charge types specific to the EILS Payment and the

EILS Charge on a settlement statement (instead of as a Miscellaneous Debit or Credit line item)

– Inclusion of key EILS Payment and Charge bill determinants in the settlements extracts

• Note: due to the nature of the EILS process, this option is still a manual work-around and therefore there are limitations– Not all of the data elements can be provided; focus remains on

the key bill determinants which show QSE’s payment/charge amounts, QSE’s time period LRS, and market totals.

• Note: to accomplish this data driven approach, ERCOT needs to used slightly modified bill determinants than what currently show in Protocols

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Follow-Up on ERCOT Take-Away

• Proposed solution – bill determinants:

Bill Determinant Description Details

EILPAMT EILS Payment Amount By QSE and Time PeriodScalar (no interval breakdown)In RTM CODE

EILPAMTQSETOT EILS Payment Amount QSE Total By QSEFeeds the statement (display in RTM Energy section)Scalar In RTM CODE

EILCAMT EILS Charge Amount By QSE and Time PeriodScalar (no interval breakdown)In RTM CODE

EILCAMTQSETOT EILS Charge Amount QSE Total By QSEFeeds the statement (display in RTM Energy section)Scalar In RTM CODE

EILSLTOT EILS Load Total Total by Time Period ScalarIn RTM MODE

EILPAMTTOT EILS Payment Amount ERCOT Total Total by Time PeriodScalarIn RTM MODE

EILSLRS EILS Load Ratio Share By QSE by Time PeriodScalarIn RTM CODE

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Next Steps

• Request COPS preference of this option vs. use of Miscellaneous Debit / Credit functionality

• Request to take the topic to SEWG to provide more details on the bill determinants and an example

• Utilize this approach in upcoming market trials– Use Feb 2010 - May 2010 contract period data

• Update the Charge Type Matrix to include EILS settlement– Reflect the bill determinants which will be used by the settlement

statements and sent in extracts

• ERCOT file an NPRR to address the bill determinant names– Existing Nodal EILS bill determinants do not follow the standards that

have been used across other charge type areas (i.e., they look “zonal” not “nodal”)

– Update Section 9.5.3 (listing of RTM settlement charge types) to include the EILS charge types