N.C. Gen. Stat. § 160A-333
No electric supplier shall furnish temporary electric service for the construction of premises which it would not have the right to serve under this Part if such premises were already constructed. The construction of lines for, and the furnishing of, temporary electric service for the construction of premises which any other electric supplier, if chosen by the consumer, would have the right to serve if such premises were already constructed, shall not impair the right of such other electric supplier to furnish service to such premises after the construction thereof, if then chosen by the consumer; nor, unless the consumer chooses to have such premises served by the supplier that furnished the temporary service, shall the furnishing of such temporary service or the construction of a line therefor impair the right of any other electric supplier to furnish service to any other premises which, without regard to the construction of such temporary service line, it has the right to serve.
N.C. Gen. Stat. § 160A-333