S.C. Code Ann. § 33-49-690

All directors, trustees, or members of the governing bodies of electric cooperatives organized under this chapter are immune from suit arising from the conduct of the affairs of these electric cooperatives in the same manner and under the same conditions as directors, trustees, and members of the governing bodies of not-for-profit cooperatives, corporations, associations, and organizations are immune under Section 33-31-834. This immunity from suit is removed when the conduct amounts to wilful, wanton, or gross negligence. Nothing in this section may be construed to grant immunity to the electric cooperatives.