Section 31.095 - Water power permits, condition precedent(1) Except where the stream to be improved forms a boundary line between this and another state, no permit shall be granted or transferred in accordance with this chapter until the applicant has filed with both the department and the public service commission, in addition to all other things required by law to be filed, an agreement setting forth: (a) That, in the event any electric energy generated under said permit shall be transmitted or conveyed beyond the confines of this state to be there sold, the applicant will furnish to any resident of this state or any corporation domiciled therein electric energy at reasonable rates to be determined by the commission, provided that the commission after public hearing shall find that public convenience and necessity require such service.(b) That the rate as determined by the commission shall in no event exceed the rate charged by applicant for similar service supplied under like conditions for the energy so transmitted outside the state.(2) The commission may hold hearings, fix rates and do all things necessary and convenient to carry out the purposes of sub. (1).