Description of Project

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Presentation transcript:

TXU Electric Delivery Anna – Collin – NW Carrollton 345 kV Line Upgrades TAC – 03/08/2007

Description of Project Upgrade 13.2 mile Anna – Collin 345 kV line from 2-795 kcmil ACSR to 959.6 kcmil ACSS/TW for 3200 Amp capacity. Cost: Approx. $4 M. Upgrade 19.3 mile Collin – NW Carrollton 345 kV line by raising towers for 2292 Amp capacity. Cost: Approx $3 M.

Economic Analysis 1st Part of Project Anna – Collin 345 kV Upgrade Identified as economic in ERCOT 2006 5-Year Transmission Study. Confirmed as economic in this study saving $7.6 M in 2007-08. Part of Valley 345 kV SPS exit strategy.

Economic Analysis 2nd Part of Project Collin – NW Carrollton 345 kV Upgrade Insufficient economic savings to warrant upgrade unless additional low-cost generation is added in northeast. Only one minor overload for one contingency in SSWG case. Will be re-studied with revised DFW-area unit assumptions as part of Coal Plant Integration Study.

Stakeholder Review The Stakeholder review period for this project was held in October 2006 There were no dissenting comments on this package of projects and TXUED resolved all questions

ERCOT Support for the Project ERCOT supports the need for the Anna to Collin 345 kV line upgrade and will be requesting that it be endorsed by the Board.