Prysmian has completed a 51,000-sq-ft expansion of its Williamsport, Pennsylvania, facility, adding 27 permanent jobs as part of a broad supply and manufacturing agreement with Invenergy, a leading independent power producer.

A press release said that the expansion, representing a $22.5 million investment, will directly support Invenergy’s Grain Belt Express transmission line—currently the largest private-sector-led transmission project in the U.S.—using domestically sourced steel and aluminum for advanced power conductors. The Grain Belt Express will span from Kansas to Indiana, delivering renewable energy to millions and reinforcing grid reliability.

With the expansion, Prysmian doubles its U.S. manufacturing capacity for key advanced transmission conductors, including those that utilize its E3X® technology. The company’s Williamsport site is now positioned as a critical hub in both Prysmian’s and Invenergy’s investments in U.S. energy infrastructure, jobs and supply chains. The plant supports over 270 jobs locally and more than 430 across Pennsylvania.

“We are proud to have a part in this transformative project supplying our most innovative technology for overhead power transmission in the market, E3X®,” said Andrea Pirondini, Prysmian North America President and CEO. “Our expanded Williamsport facility enhances our manufacturing capacity and is another step to strengthening the grid and granting energy independence throughout the United States.”