Unlocking Hidden Capacity in the Grid With Advanced Conductors - CleanTechnica

The article from CleanTechnica discusses the growing challenge of meeting rising electricity demand amid electrification of transport, heating, and industry, alongside expanding data centers and industrial loads. Since building new transmission lines is a lengthy and complex process—often taking 10 to 15 years due to permitting, environmental reviews, and litigation—engineers are exploring how to maximize the capacity of existing transmission infrastructure. One promising solution is the use of advanced conductors, which enable existing transmission towers to carry significantly more electricity without the need for new corridors or towers. Traditional transmission lines use aluminum conductor steel reinforced (ACSR) wires, which balance conductivity, strength, and cost but have thermal and mechanical limitations that restrict current capacity. As current flows, conductors heat up, causing expansion and sag that must be kept within safety limits. Advanced conductors, often categorized as high temperature low sag (HTLS) conductors, overcome these constraints by using stronger cores and materials that tolerate higher temperatures (150°C or more) while