The director shall have no right or power to impose any debt nor to suffer or create any financial obligation upon the state of Washington or its subdivisions in the execution of RCW 43.21A.610 through 43.21A.642.

No revenues received by the director for the sale of electricity or otherwise, shall be expended except for the payment of lawful obligations of the director and all such revenues and receipts shall be kept and maintained in a separate fund.