(a) Each electric utility shall provide for the appointment by its board of directors of an audit committee consisting solely of directors who are not officers or employees of the electric utility. Such audit committee shall make an annual examination into the affairs of the electric utility and report the result of such audit in writing to the board of directors at its next regular meeting.

(b) The report provided for in subsection (a) of this Code section shall state whether the electric utility is in a sound condition and whether adequate internal audit controls and procedures are being maintained and shall recommend to the board of directors such changes in the manner of conducting the affairs of the electric utility as shall be deemed advisable. The board of directors shall report in writing to the commission that such audit has been made and reviewed by the board of directors.