The authority is authorized to fix, revise, charge and collect fees, rents and other charges for the use of any project and the facilities thereof. The fees, rents and other charges shall be fixed and adjusted so as to provide funds, which when added to other funds, are sufficient to pay: (i) the cost of maintaining, repairing and operating the project and (ii) the principal and any interest on the bonds as the same shall become due and payable. Reserves may be accumulated and maintained out of the revenues and receipts of the authority for extraordinary repairs and expenses and for such other purposes as may be provided in any resolution authorizing a bond issue or in any trust indenture securing the authority’s bonds. Such fees, rents and charges shall not be subject to supervision or regulation by any commission, board, bureau or agency of the Commonwealth or any participating locality.