Utah Code § 54-4-2: Investigations -- Hearings and notice -- Findings -- Applicability of chapter.

(1)

(a) The commission may conduct an investigation if the commission determines an investigation:

(i) is necessary to secure compliance with this title or with an order of the commission;

(ii) is in the public interest; or

(iii) should be made of any act or omission to act, or of anything accomplished or proposed, or of any schedule, classification, rate, price, charge, fare, toll, rental, rule, regulation, service, or facility of any public utility.

(b) If the commission conducts an investigation under Subsection (1)(a), the commission may:

(i) establish a time and place for a hearing;

(ii) provide notice to the public utility concerning the investigation; and

(iii) make findings and orders that are just and reasonable with respect to the investigation.

(2) This chapter does not apply to a schedule, classification, rate, price, charge, fare, toll, rental, rule, service, facility, or contract of an entity described in Subsection 54-2-1(9)(b)(iii) or (iv), (21), or (23)(i), or if the electricity is consumed by an eligible customer for the eligible customer's own use or the use of the eligible customer's tenant or affiliate.