(a) Commensurate with the return on investments in other enterprises having corresponding risks; and
(b) Sufficient to ensure confidence in the financial integrity of the utility, allowing the utility to maintain its credit and attract capital.
(2) The commission is vested with power and jurisdiction to supervise and regulate every public utility and telecommunications utility in this state, and to do all things necessary and convenient in the exercise of such power and jurisdiction.
(3) The commission may participate in any proceeding before any public officer, commission or body of the United States or any state for the purpose of representing the public generally and the customers of the services of any public utility or telecommunications utility operating or providing service to or within this state.
(4) The commission may make joint investigations, hold joint hearings within or without this state and issue concurrent orders in conjunction or concurrence with any official, board, commission or agency of any state or of the United States. [Amended by 1961 c.467 §1; 1971 c.655 §9; 1973 c.776 §15; 1987 c.447 §76; 1995 c.733 §53; 2001 c.569 §1]