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MSWG Nodal Handbook/Shadow Settlement Tools JANUARY 2018

This handbook provides detailed information on settlement processes in the ERCOT Texas Nodal Market, including bill determinants, data reconciliation, and the Day Ahead market. It serves as a comprehensive resource for market participants.

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MSWG Nodal Handbook/Shadow Settlement Tools JANUARY 2018

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  1. MSWG Nodal Handbook/Shadow Settlement Tools JANUARY 2018

  2. Handbook Purpose/Purpose Served? Document Purpose With the advent of the ERCOT Texas Nodal Market, significant changes have been implemented to settlement processes and procedures for market participants. Nodal changes have brought about the increase in the number of bill determinants for settlement equations, the increase in the amount of data for reconciliation and the introduction of a Day Ahead market that adds additional settlement runs for each operating day. This document was created and maintained by the Settlements and Extracts Working Group (SEWG) is designed to serve as a reference guide for ERCOT market participants for settlement and related activities. The Communications and Settlement Working Group (CSWG) will maintain this guide based on market changes that arise from the ERCOT stakeholder process.

  3. Also provides 1. An indexed presentation of all settlement charge types and various bill determinant calculations used in settlement charge types. 2. Appealing calculation graphics 3. A bill determinant grid to define bill determinants, specifying: • ERCOT bill determinant name, • unit of measure, • description, • interval frequency, • data extract source, • and whether the determinant is capable of being shadowed

  4. Nodal Handbook phase-out • Matrix and Protocols control in event of conflict • Requires its own style-guide • Out-of-date • Redundant and inaccurate • Do Market Participants have the tools they need without it? • Need WMS approval to remove WG requirement

  5. ERCOT Nodal Charge Type Matrix • Bill Determinant Code • Effective Date • Protocol Formula • Protocol Reference Section • List of all Determinants (Input, Intermediate and Output) • Notes (ADJ cuts, NPRR, whitepaper references, ”not in Protocols”) • Other Calculations section • Billing Determinant definitions specifying UOM, Definition and Source • Revision History

  6. Alternative Toolkit

  7. Other considerations Extra-Settlement algorithms? Eg. ERO Fee Any other stakeholders dependent on Handbook Shadow tips and techniques Guidelines for “shadowability”

  8. COMMENTS/QUESTIONS?

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