(1) The Public Service Authority may not enter into a contract for the purchase of power with a duration longer than ten years without approval of the Public Service Commission of South Carolina, provided that the approval is required only to the extent the transaction is not subject to the exclusive jurisdiction of the Federal Energy Regulatory Commission or any other federal agency. This section does not apply to purchases of renewable power through a commission approved competitive procurement process.

(2) The commission shall consider any previous analysis performed pursuant to § 58-37-40 in acting upon any petition by the Public Service Authority pursuant to this section. The commission shall also take into account the Public Service Authority’s resource and fuel diversity, reasonably anticipated future operating costs, arrangements with other electric utilities for interchange of power, pooling of plants, purchase of power, and other alternative methods for providing reliable, efficient, and economical electric service.

(3) The commission may not grant approval unless it shall find and determine that the proposed transaction is in the best interests of the retail and wholesale customers of the Public Service Authority.