New England Clean Energy Connect Transmission Line

New England Clean Energy Connect Transmission Line

New England Clean Energy Connect Transmission Line

Type: Transmission
Scope: 145 miles of 320kV HVDC T/L – steel poles
Location: Maine
Client: Avangrid

The New England Clean Energy Connect (NECEC) is the largest clean energy project in New England. The Clean Energy Corridor connects 1,200 megawatts of renewable hydropower from Canada to the New England power grid.

In total, the project consists of 145 miles of new transmission line that will tie into the existing transmission system in Lewiston, ME. Additional project components include upgrading 50 miles of existing alternating current transmission lines, construction of a new converter station, a new substation, and multiple system upgrades.

When the New England Clean Energy Connect (NECEC) project was announced, Irby and Cianbro teamed up to pursue their part in the $950 million that will bring clean energy to 1.2 million households. Leveraging their previous success for Central Maine Power, and staying committed to the win, the Cianbro-Irby joint venture worked for three years on pricing and negotiations. In April 2020, the Cianbro-Irby team was awarded a 145-mile transmission line project from Avangrid. Cianbro-Irby’s scope of work includes all aspects of the DC line construction including foundations, pole setting, framing, and wire stringing operations.

Start Date: December 2020
Scheduled Completion: TBD

 

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

 

Port St. Joe-Callaway 230kV Transmission Line Upgrade Project

Port St. Joe-Callaway 230kV Transmission Line Upgrade Project

Port St. Joe-Callaway 230kV Transmission Line Upgrade Project

Type: Transmission
Scope: Performed the removal and rebuild of 34 miles of 230kV transmission line in the aftermath of Hurricane Michael.
Location: Port St. Joe, Florida
Client: Duke Energy

Duke Energy is one of the largest electric power holding companies in the United States, providing electricity to 7.7 million retail customers in six states. In December 2018, Duke Energy contracted Irby to perform the removal and reconstruction of 34 miles of 230kV transmission line from Port St. Joe to Callaway in the aftermath of Hurricane Michael.

The work scope was completed ahead of schedule in March 2019 with no injuries or environmental incidents with the assistance of several key subcontractors including Aldridge Electric, A&J Steel, HeliService Powerline Solutions, FireHawk Helicopters, ROW Masters, Probst Electric, and Thomasson Company.

Start Date: December 2018
Completion Date: March 2019

 

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

 

Lampasas-San Saba 138kV Transmission Line Construction Project

Lampasas-San Saba 138kV Transmission Line Construction Project

Lampasas-San Saba 138kV Transmission Line Construction Project

Type: Transmission
Scope: Constructed 33.4 miles of 138kV transmission line including poles and foundations.​
Location: Lometa, Texas
Client: Lower Colorado River Authority

The Lower Colorado River Authority (“LCRA”) is a non-profit public utility providing wholesale power to over a million people in Texas. In December 2016, LCRA contracted Irby to construct 33.4 miles of 138kV transmission line from Lampasas to San Saba in central Texas.

The project was executed in consideration of a condensed LCRA schedule and habitat-specific environmental permitting requirements. The Irby scope included steel structures, poles, 22 drilled pier foundations, and a railroad and major highway crossing.

With assistance from fellow Quanta Services subsidiary company North Houston Pole Line (Irby is also a Quanta Services subsidiary (PWR:NYSE)), the project was successfully delivered to LCRA in January 2018.

Start Date: December 2016
Completion Date: January 2018

 

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

 

Harwood-Waelder 69kV Transmission Line Upgrade Project

Harwood-Waelder 69kV Transmission Line Upgrade Project

Harwood-Waelder 69kV Transmission Line Upgrade Project

Type: Transmission
Scope: Constructed 13.9 miles of 69kV energized transmission line and conductor upgrade.​
Location: Hardwood, Texas
Client: Lower Colorado River Authority

The Lower Colorado River Authority (“LCRA”) is a nonprofit public utility established to provide quality of life to Texans through water stewardship, energy, and community service.

In November 2017, LCRA contracted Irby to upgrade a 13.9 mile 69kV transmission line between its Harwood and Waelder substations to 138kV capable. The Irby scope included the replacement of 112 structures to complete the conductor upgrade and the installation of OPGW shield wire from Waelder to Flatonia substations.

The Irby upgrades (including foundations, tangents, and dead ends) were performed on energized lines with support from Quanta Energized Services and Probst Electric Company (Both Irby and Probst are Quanta Services companies (PWR:NYSE)). Completed to schedule in May 2018, the project was delivered to budget and with zero lost time incidents.

Start Date: November 2017
Completion Date: May 2018

 

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

 

Corbett-Sugar-Quarry 500kV Transmission Line Construction Project

Corbett-Sugar-Quarry 500kV Transmission Line Construction Project

Corbett-Sugar-Quarry 500kV Transmission Line Construction Project

Type: Transmission
Scope: Constructed 68.3 miles of 500kV transmission line including 15 miles of construction through Everglade canal waterways.
Location: South East Florida

Client: NextEra Energy Resources

NextEra Energy Resources (a parent company of FPL) is a wholesale electricity supplier with a portfolio of facilities totaling more than 21,000MW of electric generating capacity in the United States and Canada. In January 2018, NextEra contracted Irby to construct 68.3 miles of 500kV transmission line (single circuit, triple bundled) between Palm Beach and Miami-Dade counties (Corbett and Sugar substations to Quarry substation) in support of a critical tie-in for the NextEra’s Florida grid.

The Irby scope includes site survey, clearing, construction of access roads and pads, pier foundations and anchor pile installation, and setting steel structure and deadends with approximately 15 miles of the construction right of way transversing protected Everglade canal waterways.

In observance of the projects environmental requirements Irby crews adapted novel technical solutions including the use of barges, concrete pump lines, and amphibious equipment.

Start Date: January 2018
Completion Date: May 2019

 

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