The Working Waterfront

Isle au Haut gets new power cable

Installation took place in February

STAFF
Posted 2026-03-23
Last Modified 2026-03-23

The Isle au Haut Electric Power Co. is most of the way through a years-long project to install a new undersea electric cable to the unbridged island. Over several days in late February, contractors came together to splice together six spools of cable in Belfast, then use a barge to install the cable over roughly six miles between Isle au Haut and Stonington. The company is working to bring the new power cable online this spring. The project has cost roughly $600,000, with half coming from the Northern Border Regional Commission and the rest from private donations. The cable will supplement an older one that the island installed more than 40 years ago, as well as a new fiber internet cable laid on the sea floor in 2024.