1 / 9

CFE-ERCOT DC-Ties Commercial Operations

This document summarizes the key points from the ERCOT-CFE Meeting held in December 2007, focusing on the commercial operations of DC ties between ERCOT and CFE. Key DC ties discussed include Eagle Pass (36 MW), Laredo (100 MW), Sharyland Railroad (150 MW), and others. The meeting covered operational aspects, scheduling processes, transfer limits, and the management of inadvertent accounting. Discussions aimed at establishing a robust framework for commercial operations, emphasizing the need for ready systems and collaborative agreements between ERCOT and CFE for efficient energy transactions.

walter-gallegos
Télécharger la présentation

CFE-ERCOT DC-Ties Commercial Operations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CFE-ERCOT DC-Ties Commercial Operations ROS December 2007 Carlos Gonzalez-Perez ERCOT Operations Support CFE/ERCOT/AEP Meeting – Mexico City

  2. ERCOT DC-Ties • ERCOT-CFE Operational DC-Ties • Eagle Pass (DC_S, 36 MW) • Laredo Variable Frequency Transformer (DC_L, 100 MW) • Sharyland Railroad (DC_R, 150MW) • ERCOT-SPP Operational DC-Ties • North DC-Tie (DC_N, 220 MW) • East DC-Tie (DC_E 600 MW) DC_N 220 MW DC_E 600 MW DC_S 36 MW DC_L 100 MW DC_R 150 MW ROS Meeting – December 2007

  3. Commercial Operational Aspects ROS Meeting – December 2007

  4. Future Commercial Ops. of the DC-Ties • ERCOT management of the scheduling process in the South DC-Ties will be similar to the North DC-Ties • Minimal modifications to the ERCOT systems will be necessary • CFE to establish a NERC E-Tag operation for transactions between Mexico and ERCOT (and vice versa) ROS Meeting – December 2007

  5. ERCOT DC-Ties Scheduling Process ROS Meeting – December 2007

  6. Proposed Day Ahead Operations – Limit Calculations CFE Day Ahead Transfer Limits LIMIT Set to the Lower of all the Values ERCOT Day Ahead Transfer Limits Tie De-Ratings • Limits are initially calculated Daily (can be changed to weekly, etc) • CFE to provide ERCOT limits by 16:00 • Most constrained transfer limits will be made public and posted • Limits will be recalculated in real-time based on system conditions as needed ROS Meeting – December 2007

  7. Schedule Curtailment Process ROS Meeting – December 2007

  8. Inadvertent Accounting • Scheduled Energy: Calculated from the NERC E-Tag • Actual Energy: • Real-time SCADA hourly integrated. For hourly monitoring • EPS meter true-up 7 days after the fact • Daily Check-out: • Between ERCOT Operator and Tie Operator after midnight • Define payback in kind schedules, if the Inadvertent Balance larger than X MWh • Monthly True-up • Between CFE and ERCOT • Keeping up with the Inadvertent Account Balance ROS Meeting – December 2007

  9. Before going into Commercial Operations • Finalize Operating procedures for the South DC-Ties • Finalize an Emergency Assistance Agreement with CFE • Finalize Inadvertent agreement with CFE • CFE to have an E-Tag operation in place • ERCOT to finalize the testing of ERCOT systems • Tie Operator systems ready • CFE declare ready for Commercial Operations ROS Meeting – December 2007

More Related