US-based Georgia Power, a subsidiary of electric utility Southern Company, has used 3M ACCR overhead conductor to double the capacity on a set of transmission lines that cross wetlands near city of Savannah, in the state of Georgia.

The lightweight, low-sag 3M ACCR overhead conductors were used to upgrade the transmission lines and reduce the need for larger towers or a wider right of way, on a range of potential challenges, including construction on environmentally sensitive land.

Georgia Power performed the upgrade work on 16.7 mile long transmission lines connecting the Kraft generating plant in Savannah with its McIntosh plant, north of the city.

The project is expected to resolve potential capacity issues by almost doubling the 230kV double circuits’ line capacity, replacing a conventional steel core conductor with a 3M ACCR 1622 kcmil conductor that is light enough to be accommodated mostly by the existing infrastructure.

Southern Company Services senior transmission planner Bob Beck said, "3M ACCR enabled us to use mostly existing towers and to re-conductor with minimal disturbance to the land and no service interruption."