S.C. Code § 58-27-2620
2014 Act No. 236, Sections 9, 10, provide as follows:
"SECTION 9. If the application of the provisions of this act to any wholesale electrical contract existing on the date of its adoption is determined to impair unlawfully any term of such contract or to add material costs to either party, then that contract will be exempt from the terms of this act to the extent necessary to cure such impairment or to avoid the imposition of additional material costs.
"SECTION 10. Article 23, Chapter 27, Title 58 shall be construed as a whole, and all parts of it are to be read and construed together. If any part of this article shall be adjudged by any court of competent jurisdiction to be invalid, the remainder of this article shall be invalidated. Nothing herein shall be construed to affect the parties' right to appeal the matter."