S.C. Code Ann. § 13-19-160
(A) Prior to undertaking any project authorized by Section 13-19-40, the board of the authority shall make a determination:
(B) Every financing agreement between the authority and a company with respect to a project shall contain an agreement obligating the company to complete the project if the proceeds of the bonds prove insufficient, and obligating the company to pay an amount under the terms of a financing agreement, which, upon the basis of the determinations made by the board, is sufficient: