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Gray-Allen Creek 345kV Transmission Line Construction Project

Gray-Allen Creek 345kV Transmission Line Construction Project

Gray-Allen Creek 345kV Transmission Line Construction Project

Type: Renewables, Transmission
Scope: Constructed 25 miles of 345kV transmission line in support of a North Texas wind project.
Location: Pampa, Texas

Client: Cross Texas Transmission

Founded in 2008, (“CTT”) is a regulated transmission service provider providing energy to wholesale markets across Texas. The bulk of CTT’s capacity derives from its owned and operated network of transmission lines (>320 miles) which delivers wind power from the Texas Panhandle to its customers.

In January 2016, CTT contracted Irby to incorporate power from the Salt Fork Wind project in Gray and Donley Counties by constructing 25 miles of 345kV transmission line. The Irby work scope included the installation of steel structures, foundations, and wire operations. Irby was assisted by (direct embed drilling and structure setting), (lead-in installation and diverters), and B&M Telecom (Fiber splicing). Both Irby and Winco Powerline are subsidiary companies (PWR:NYSE).

The project was completed in August 2016 to schedule and with zero lost-time incidents.

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Start Date: January 2016
Completion Date: August 2016

 

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Horse Hollow-Kendall 345kV Transmission Line Construction Project

Horse Hollow-Kendall 345kV Transmission Line Construction Project

Horse Hollow-Kendall 345kV Transmission Line Construction Project

Type:听Renewables, Transmission
Scope: Constructed 235 miles of 345kV and 12 miles of 138kV transmission line in support of a wind farm project in Southcentral Texas.
Location: Brady, Texas
Client: Horse Hollow Generation Tie

Horse Hollow Wind Energy Center (“HHWEC”) is a ~47,000 acre 735.5 MW wind farm situated in Taylor and Nolan Counties, Texas. Built, owned, and operated by (“NextEra”) (via its subsidiaries including Horse Hollow Generation Tie, LLC), the project’s 421 turbines are capable of generating enough electricity to power more than 220,600 homes.

In April 2009, Irby was contracted to construct 235 miles of 345kV and 12 miles of 138kV transmission line to deliver power from HHWEC to NextEra’s customers in the San Antonio area. Completed ahead of schedule and without incident, Irby acted as the prime contractor for the project on behalf of a consortium of Quanta Services (PWR:NYSE) subsidiary companies including , Dillard Smith, , and .

In addition to the transmission lines, Irby crews also installed over 600 concrete, steel ,and hybrid poles, and strung over 90 miles of bundle conductor for the project. The project was delivered on time and to budget in April 2010.

Start Date: April 2009
Completion Date: April 2010

 

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CREZ 345kV Transmission Line Construction Projects

CREZ 345kV Transmission Line Construction Projects

CREZ 345kV Transmission Line Construction Projects

Type: Renewables, Transmission
Scope:
Constructed approximately 1000 miles of 345kV transmission line for a variety of renewable energy projects in Central Texas.
Location: Central Texas
Clients:
鈥 听Electric Transmission Texas
鈥 听Lower Colorado River Authority
鈥 听Lone Star Transmission
鈥 听Sharyland Utilities
鈥 听South Texas Electric Cooperative

 

(“CREZ”) were introduced by the Texas State Legislature in 2005 to alleviate grid congestion and integrate renewable energy resources (primarily wind from rural west Texas) into more heavily populated metropolitan areas (e.g., Austin, Dallas-Fort Worth, San Antonio).

Approximately 2,400 miles of electric transmission line was ordered by the Public Utility Commission of Texas and awarded to 10 CREZ transmission service providers. Irby provided transmission construction services to 5 of those service providers, namely: , ,, , and over a 3 year period.

Employing various Quanta network contracting configurations (Irby is a Quanta Services company (PWR:NYSE)), Irby collectively built approximately 1,000 miles of line, the majority of which was 345 kV, with small portions of 138 kV throughout.

Start Date: October 2011
Completion Date: December 2014

 

 

If you would like to request information on this project or submit a request for bid,听click here.