ETT energizes seven CREZ transmission lines in Texas

Electric Transmission Texas energized the last of seven 345-kV transmission line projects associated with the Competitive Renewable Energy Zones (CREZ) initiative in west Texas.

The Edith Clarke to Cottonwood transmission line was energized to the Electric Reliability Council of Texas (ERCOT) grid on December 4. The transmission line is 88.4 miles long and runs from the Crowell area in Foard County to the Afton area in Dickens County. This phase of the ETT CREZ program represents about $175.4 million of ETT’s estimated total CREZ investment of about $1.5 billion.

Energizing the Edith Clarke to Cottonwood transmission line completes the last of the seven greenfield 345-kV transmission projects assigned to ETT as part of the CREZ initiative. The overall CREZ initiative involves nine different transmission service providers, including ETT, constructing 2,400 miles of transmission lines to carry 18,500 MW of west Texas wind generation to major load centers in ERCOT.

All CREZ projects are scheduled for completion by the end of 2013. ETT received the second largest assignment of CREZ projects from the Public Utility Commission of Texas (PUCT).

ETT, a joint venture between units of American Electric Power (AEP) and MidAmerican Energy Holdings Company, received 20 percent of the Texas CREZ initiative. ETT’s share of the CREZ project includes building about 460 miles of new double-circuit 345-kv lines, upgrading three 138-kV existing lines totaling 178 miles and 16 switching stations, as well as acquiring rights-of-way across 578 tracts of land and upgrading existing stations and transmission lines. It is the largest transmission construction venture in AEP’s history, and one of its most demanding.

The other six 345-kV transmission lines include:

Riley to Edith Clarke – a 41.5-mile line running from the Vernon area in Wilbarger County to the Crowell area in Foard County at a cost of about $91.8 million

Tesla to Riley – a 65.6-mile line from the Childress area in Childress County to the Vernon area in Wilbarger County at a cost of about $134.5 million

Tesla to Edith Clarke – a 55-mile line from the Vernon area in Wilbarger County to the Crowell area in Foard County at a cost of about $98.3 million

Edith Clarke to Clear Crossing – a 79.2-mile line from the Crowell area in Foard County to the Stamford area in Haskell County at a cost of about $157.7 million

Clear Crossing to Dermott – a 90.1-mile line from the Stamford area in Haskell County to the Snyder area in Scurry County at a cost of about $189.2 million

Clear Crossing to West Shackelford – a 33.7-mile line from the Stamford area in Haskell County to the Albany area in Shackelford County at a cost of about $76.5 million.

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