(b) As used in this subsection, "automatic adjustment clause" means a provision of a rate schedule that provides for rate increases or decreases or both, without prior hearing, reflecting increases or decreases or both in costs incurred, taxes paid to units of government or revenues earned by a utility and that is subject to review by the commission at least once every two years.

(2)(a) Subsection (1) of this section does not apply to rate changes under an approved alternative form of regulation plan, including a resource rate plan under ORS 757.212.

(b) Any alternative form of regulation plan shall include provisions to ensure that the plan operates in the interests of utility customers and the public generally and results in rates that are just and reasonable and may include provisions establishing a reasonable range for rate of return on investment. In approving a plan, the commission shall, at a minimum, consider whether the plan:

(A) Promotes increased efficiencies and cost control;

(B) Is consistent with least-cost resources acquisition policies;

(C) Yields rates that are consistent with those that would be obtained following application of ORS 757.269;

(D) Is consistent with maintenance of safe, adequate and reliable service; and

(E) Is beneficial to utility customers generally, for example, by minimizing utility rates.

(c) As used in this subsection, "alternative form of regulation plan" means a plan adopted by the commission upon petition by a public utility, after notice and an opportunity for a hearing, that sets rates and revenues and a method for changes in rates and revenues using alternatives to cost-of-service rate regulation.

(d) Prior to implementing a rate change under an alternative form of regulation plan, the utility shall present a report that demonstrates the calculation of any proposed rate change at a public meeting of the commission.

(3) Except as provided in ORS 757.212, the commission, at any time, may order a utility to appear and establish that any, or all, of its rates in a plan authorized under subsection (2) of this section are in conformity with the plan and are just and reasonable. Except as provided in ORS 757.212, such rates, and the alternative form of regulation plan under which the rates are set, also shall be subject to complaint under ORS 756.500.

(4) Periodically, but not less often than every two years after the implementation of a plan referred to in subsection (2) of this section, the commission shall submit a report to the Legislative Assembly that shows the impact of the plan on rates paid by utility customers.

(5) The commission and staff may consult at any time with, and provide technical assistance to, utilities, their customers, and other interested parties on matters relevant to utility rates and charges. If a hearing is held with respect to a rate change, the commission’s decisions shall be based on the record made at the hearing. [Amended by 1971 c.655 §70a; 1981 c.715 §1; 1985 c.550 §2; 1987 c.447 §97; 1987 c.613 §1; 1989 c.5 §§3,23; 1995 c.785 §1; 2001 c.913 §3; 2005 c.845 §5; 2011 c.137 §3]