Miss. Code § 21-27-17
The commission provided for by Section 21-27-13 is authorized to make such bylaws for the holding and conduct of its meetings and such other regulations as it may deem necessary for the safe, economic and efficient management and protection of the system or systems, and such bylaws and regulations shall have the same validity as an ordinance duly passed by the governing authorities of any municipality.
It is authorized to elect such officers and appoint such employees as may be necessary to operate the system or systems efficiently, and it shall have the entire control and management of such system or systems, together with all property connected or appertaining in any manner to such system or systems. The commission shall have the authority to employ a superintendent or manager of the systems, who shall have actual charge of the management and operation thereof and of the enforcement and execution of all the rules, regulations, programs, plans and decisions made and adopted by the commission in making purchases for materials and supplies to be used in the operation of the systems. In addition to any other purchasing authority granted by law, the commission may purchase electric transmission line materials, electric distribution system substation equipment, transformer equipment, and all other appliances, apparatus, machinery, equipment and appurtenances necessary for the sale of electricity, such as utility vehicles and fencing, from the surplus inventory of the Tennessee Valley Authority or any other similar agency of the federal government and electric power associations. These purchases shall be exempt from the public bid requirements prescribed in Sections 31-7-12 and 31-7-13. However, for all other purchases, the commission shall advertise for competitive bids in the manner and form as is required in accordance with Section 31-7-13. The superintendent or manager shall make and keep full and proper books and records of all purchases and shall submit them to the commission for its approval and ratification before payment thereof is authorized to be made. The commission may authorize the superintendent or manager to immediately refund to a customer of the municipally owned utility his or her deposit for municipal utility services after the superintendent or manager has determined that payment for all services and any other obligations which the customer may have incurred in regard to the municipal utility has been made. It shall have the right to fix the salaries and term of office of all employees and to direct them in the discharge of their duties. It shall have the right to require good and sufficient bonds from all officers and employees in such amounts as it may deem proper. It shall have the right to discharge employees when found inefficient or for other good cause. It shall have the power to make and collect rates for services and facilities, and appropriate funds for the maintenance and improvements of such systems. It is authorized to borrow from the Mississippi Development Bank in order to fund advance purchases of energy for gas producing, generating, transmission or distribution system or its electric generating, transmission or distribution system. It is authorized to insure all property used in the operation of such systems, including buildings, furniture, books and records, against loss by fire and tornado, and to carry sufficient amount of employers liability, steam boiler, plate glass and other miscellaneous casualty insurance, as in the discretion of the commission may be deemed proper, and to pay premiums therefor out of the funds derived from the operation of the systems. It shall report quarterly to the governing authorities of the municipality of all its doings and transactions of every kind whatsoever and shall make a complete statement of the financial condition of the systems at the end of each quarter, and shall annually make a detailed statement covering the entire management and operation of the systems, with any recommendations which it may have for the further development of the systems. At any time, the commission, by order or resolution, may authorize the expansion of activities of any component facility to include processing of materials on a custom basis or the processing and marketing of materials acquired to fully and efficiently utilize existing plant capacity. It shall also provide copies of all such quarterly and annual reports and statements to the Public Service Commission when so directed under Section 77-3-6.
The commission provided for by Section 21-27-13 is also authorized to allow a municipally owned utility to prepay the utility's bills to those electricity suppliers which offer early payment discounts to the municipally owned utility.
Miss. Code § 21-27-17