On May 6, the clean energy train slid off the tracks in Arizona, taking with it the hope for the timely passage of the proposed Arizona Corporation Commission (ACC) Energy Rules to reach 100% clean energy by 2050. More than three years after the rulemaking train left the station, the ACC rejected the proposed rules in a surprise 3-to-2 vote. That decision came after nearly three years of official stakeholder engagement, bipartisan cooperation, and extensive participation of utilities, consumer advocates, and communities of faith in the robust process, with all of those groups ultimately supporting the proposed rules package. But it turns out this was not the end of the line for the proposed rules. They are now back on track, in a new form, although the journey is far from over.