Exel Composites Unveils Advanced Carbon Fiber Cores for Next-Gen Power Transmission

Exel Composites will showcase its carbon fiber composite cores at the 2026 IEEE PES T&D Conference and Exposition, developed for next-generation conductors for overhead transmission lines. Composite conductor cores are a key enabling technology for high-temperature low-sag (HTLS) conductors used in grid reconductoring and capacity upgrades. Compared to traditional steel cores, composite cores exhibit lower thermal expansion, higher strength-to-weight ratio, and , enabling utilities to increase ampacity on existing structures while maintaining required clearances. Exel’s conductor cores are manufactured using a continuous pultrusion process designed for high-volume production with consistent quality and precise dimensional control. The process enables the cores to be produced in continuous lengths and reeled directly onto spools — allowing delivery in several-kilometer lengths suitable for conductor stranding.

These composite cores are already deployed in transmission projects, supporting utilities as they modernize aging infrastructure, integrate renewable energy, and enhance grid resilience. In addition to composite conductor cores, Exel provides a portfolio of composite solutions for electrical distribution and transmission applications. These include composite utility poles, insulators and hot sticks, and other fiber-reinforced components designed to deliver high mechanical strength, electrical insulation performance, and corrosion resistance in demanding environments. 

Exel Composites
https://exelcomposites.com/
Booth 4333