In the discretion of the authority, any issue of bonds may be secured by a trust agreement or indenture made by the authority with a corporate trustee, which may be any trust company or bank within or without the state having the powers of a trust company. The trust agreement or indenture may pledge or assign any revenues to be received by the authority and any proceeds which may be derived from the disposition of any real or personal property of the authority or proceeds of insurance carried thereon. The resolution providing for the issuance of bonds and the trust agreement or indenture may contain any provisions the authority deems necessary or appropriate for protecting and enforcing the rights and remedies of the bondholders, including the right of appointment of a receiver upon default in the payment of any principal or interest obligation and the right of any receiver or trustee to enforce collection of any rates, fees, tolls, charges, or revenues for the output, capacity, use, or service of the project necessary to pay all costs of operation and all reserves provided for, the principal of and interest on all bonds of the issue, all costs of collection, and all other costs reasonably necessary to accomplish the collection of such sums in the event of any default of the authority. The resolution, trust agreement or indenture may include covenants setting forth the duties of the authority in relation to the acquisition of property for and construction of the project and to the custody, safeguarding, and application of all funds of the authority, including any proceeds derived from the disposition of any real or personal property of the authority or proceeds of insurance carried thereon, and covenants providing for the operation, maintenance, repair, and insurance of the project, and may contain provisions concerning the conditions, if any, upon which additional bonds may be issued. The resolution, trust agreement or indenture may set forth the rights and remedies of the bondholders and of the trustee and may restrict the individual right of action of any bondholder as is customary in securing bonds and debentures of corporations and may contain any other provisions that the authority may deem reasonable and proper for the security of the bondholders. All expenses incurred in carrying out the trust agreement or indenture may be treated as a part of the cost of maintenance, operation, and repair of the project affected by the trust agreement or indenture; provided, however, any such treatment shall not result in a charge against the interest of any joint owner of the electric generation, transmission or distribution facilities, a portion of which facilities constitutes the project.