Ala. Code § 11-50-528

All bonds issued by the corporation and all interest coupons appertaining thereto shall possess all the qualities of negotiable instruments. All bonds issued by the corporation shall be issued in anticipation of its revenues and shall be payable solely out of such of its revenues as may be designated by the board and shall not create a debt of the corporation. None of the municipalities located in the power district shall at any time or in any manner be liable for any obligations or bonds of the corporation, nor shall the same be construed to be an indebtedness of or against any such municipality.