# Prysmian completes 51,000 sq ft expansion of Williamsport cable factory

Prysmian completed a 51,000 square foot expansion of its Williamsport, Pennsylvania facility, adding 27 permanent jobs and doubling U.S. manufacturing capacity for certain advanced transmission conductors. The expansion supports a supply agreement with Invenergy for the Grain Belt Express transmission project.

- Type: Expansion
- Announced: 2025-06-10
- Where: Williamsport, Pennsylvania, United States
- Value: $500.0M
- Jobs: 27
- Starts operating: 2027
- Status: completed
- Capacity: doubles U.S. manufacturing capacity for certain advanced transmission conductors
- Products: advanced transmission conductors, E3X® overhead power transmission cable
- Sectors: [Electrical Equipment](https://endata.com/sectors/electrical-equipment.md)

## Companies

- [Prysmian](https://endata.com/companies/968.md)
- [Invenergy](https://endata.com/companies/27606.md) (customer)
- [Encore Wire](https://endata.com/companies/27936.md) (partner)

## Sources

- [es.wwww.invenergy.com](https://es.wwww.invenergy.com/news/with-invenergy-s-support-prysmian-doubles-down-on-u-s-manufacturing-and-domestic-energy-supply-chains), 2025-06-10: "Our expanded Williamsport facility enhances our manufacturing capacity and is another step to strengthening the grid and granting energy independence throughout the United States."
- [na.prysmian.com](https://na.prysmian.com/resources/press-releases/prysmian-invests-500-million-dollars-to-support-growing-electrification-demand-and-us-power-grids-through-encore-wire-expansion), 2025-06-17: "Prysmian yesterday held a groundbreaking ceremony to kick off its $500 million investment at the Encore Wire campus over five years."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.