(a) Any city may become a member of a municipal energy agency or withdraw as a member if membership or withdrawal is authorized by ordinance of the governing body of the city and consented to by resolution of the board of directors of the agency. The governing body of the city and the board of directors of the agency also shall approve by adoption of a resolution, and execute, an amendment to the agreement creating the agency, adding the member city to the agreement or withdrawing the member city. Any other amendment to the agreement creating the agency shall be governed by the provisions of Kan. Stat. Ann. § 12-889, and amendments thereto. Any ordinance or resolution adopted and effective prior to the effective date of this act which relates to membership or withdrawal, as provided herein, shall remain in full force and effect and shall constitute an ordinance or resolution required by this act unless specifically repealed prior to the execution by the city of the amendment to the agreement. The amendment shall be submitted to and approved by the attorney general in the manner provided in subsection (b) of Kan. Stat. Ann. § 12-888, and amendments thereto.

(b) When a municipal electric generating system in any city is owned or operated by a board of public utilities, the board of public utilities may participate in the creation and become a member of a municipal energy agency under the provisions of this act. In any such case, the board of public utilities shall act for and on behalf of the governing body of the city for which it operates and all appointments, participation and other acts which would otherwise be made by the mayor of the city shall be made by the chairperson or president of the board of public utilities.