Utah Code Ann. § 54-17-402
(2)
(3) In ruling on a request for approval of a resource decision, the commission shall determine whether the decision:
(b) is in the public interest, taking into consideration:
(4)
(6) Unless the commission determines that additional time to analyze a resource decision is warranted and is in the public interest, within 180 days of the day on which the energy utility files a request for approval, the commission shall:
(7) The commission shall include in its order under this section: