On January 22, 2020, Arizona Public Service (APS), Arizona’s largest electricity provider, announced a goal to deliver 100 percent clean, carbon-free electricity to customers by 2050.[1] APS also has a nearer-term 2030 target of achieving a resource mix that is 65 percent clean energy, including 45 percent from renewable energy. The utility also plans on ending all coal-fired generation by 2031 which is seven years earlier than previously planned. Currently, APS gets 22 percent of its power from coal and 26 percent from gas and oil.[2] The Palo Verde nuclear plant accounts for 25 percent of the mix, renewables deliver 12 percent, and demand-side management accounts for 16 percent. The APS commitment is notable because Arizona has not passed sweeping climate or carbon policy at the state level. The decision places APS on a list of major electric utilities committing to carbon-free energy sources. Other utilities committed to decarbonization include Xcel Energy, Duke Energy, and Public Service Enterprise Group (PSEG).

[1] https://www.aps.com/en/About/Our-Company/Newsroom/Articles/APS-sets-course-for-100-percent-clean-energy-future

[2] https://www.aps.com/-/media/APS/APSCOM-PDFs/About/Our-Company/Doing-business-with-us/Resource-Planning-and-Management/2017IntegratedResourcePlan.ashx