American Electric Power Oklahoma Transmission Company (“AEPOT”) (a subsidiary of American Electric Power), contracted Irby in November 2017 to demolish and reconstruct the 22 breaker 138kV Northeastern substation near Oolagah, Oklahoma. The project scope included the installation of two new 138kV bays, the transfer of existing lines, and demolition of the existing substation to phased AEPOT outage cadence. The Northeastern substation provides essential power to the Tulsa metropolitan area and all outages were executed to AEPOT schedule and with zero lost-time incidents.

Start Date: November 2017
Completion Date: November 2019

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The Lower Colorado River Authority (“LCRA”) is a non-profit public utility providing water stewardship and energy to more than 70 counties throughout Texas. In July 2018, LCRA contracted Irby to upgrade the capacity of its 138kV Colton Lane Electrical Substation in southeast Travis County, Texas.

Constructed to serve the anticipated load growth of the Bluebonnet Electric Cooperative (Owners of 11,000+ miles of power lines across 14 counties), the Colton Lane substation was successfully upgraded by Irby to its newly rated 3000A capacity within a condensed LCRA schedule and with zero lost time incidents in September 2018.

Start Date: July 2018
Completion Date: September 2018

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In March 2018, the Lower Colorado River Authority (“LCRA”) contracted Irby to perform a 138kV/145kV substation breaker replacement at the Gillespie substation near Fredericksburg, Texas. The Irby scope included replacement of six 138kV oil-filled circuit breakers with new 145kV breakers, and the installation of new control cable and junction boxes at each breaker stand. 

Throughout the project, Irby was able to display its craftsmanship specifically pertaining to aluminum bus work, bending and termination, as well as control cable installation and termination. Executed to LCRA schedule and budget, the project was successfully delivered in April 2018. 

Start Date: March 2018
Completion Date: April 2018

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Lone Star Transmission, LLC (“Lone Star”) provides transmission services to the Electric Reliability Council of Texas (>25 million customers) primarily via renewable wind energy resources from rural west Texas.

Commencing in July 2018, Lone Star contracted Irby to perform a series of upgrade projects to its four major 345kV transmission substations (Novaro, Sam, West Shackelford, and Claytonville). The project scope included the retrofit 120 Motorized Air-Breaks on existing hand-operated 345kV switches and extensive coordination was required to meet the outage/swap out schedule. Completed in October 2018, the project was delivered to specification with zero lost time incidents.

Start Date: July 2018
Completion Date: October 2018

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In recent years, persistent seasonal flood conditions in and around Hays County, Texas have impacted operations at the Lower Colorado River Authority (“LCRA”) Canyon Substation. In March 2018, LCRA contracted Irby to perform flood remediation works including the installation of a new control house and the replacement of 138kV breakers at the substation. The project involved significant coordination with client and subcontract teams to perform the rehabilitation works within constricted work areas and to a condensed LCRA outage schedule.

The Irby scope included foundation and control building construction (supported by East & Westbrook and Southwest Erectors), panel removal and relocations, pulling and termination of control cable, and installation of a microwave tower. All works were completed to the LCRA outage schedule with zero lost time incidents.

Start Date: March 2018
Completion Date: June 2018

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