FARGO, N.D.  — A Minnesota utility that serves customers in eight states is using drones for the first time to help build a transmission line.

A machine owned and operated by North Dakota-based SkySkopes is stringing lines on a 5-mile Xcel Energy line meant to improve reliability in the Fargo area. The drone installs the lines by pulling a specialized rope through pulleys that is then attached to wires that will transmit electricity.

Officials say drones will save time and money while increasing safety and reducing the environmental impact.