N.C. Gen. Stat. § 143-129.4

The solicitation and evaluation of proposals for guaranteed energy savings contracts, as defined in Part 2 of Article 3B of this Chapter, and the letting of contracts for these proposals are not governed by this Article but instead are governed by the provisions of that Part; except that guaranteed energy savings contracts are subject to the requirements of G.S. 143-128.2 and G.S. 143-135.3.