N.C. Gen. Stat. § 62-20
The Attorney General may intervene, when he deems it to be advisable in the public interest, in proceedings before the Commission on behalf of the using and consuming public, including utility users generally and agencies of the State. The Attorney General may institute and originate proceedings before the Commission in the name of the State, its agencies or citizens, in matters within the jurisdiction of the Commission. The Attorney General may appear before such State and federal courts and agencies as he deems it advisable in matters affecting public utility services. In the performance of his responsibilities under this section, the Attorney General shall have the right to employ expert witnesses, and the compensation and expenses therefor shall be paid from the Contingency and Emergency Fund. Upon request, the Commission shall furnish the Attorney General with copies of all applications, petitions, pleadings, order and decisions filed with or entered by the Commission. The Attorney General shall have access to all books, papers, studies, reports and other documents filed with the Commission.
N.C. Gen. Stat. § 62-20