Whenever application is made to the commission for certification of an electric or gas plant, line, or extension subject to this article, the commission shall appoint a construction project board of consultants to evaluate the design, construction, project management, and economic soundness of the proposed plant, line, or extension, if the commission determines that a significant potential exists for the occurrence of problems in any of the areas for which an electrical or gas corporation is required to submit information pursuant to Section 1003 or 1003.5. The extent of the board’s evaluation shall be determined by the commission. The board may, upon approval of the commission, employ staff independent of the commission staff to carry out its functions under this article. The board may, upon approval of the commission, undertake special studies addressing potential problem areas identified by the board.