On August 12, 2021 the Office of Arizona Corporation Commission Chairwoman Lea Márquez Peterson released an interesting summary of the average future bill impact to residential customers up to 2050, depending on the utility and the amount of emission reductions that each utility achieves within that time. Worth a read.
PHOENIX - Several clean energy proposals are currently pending before the Arizona Corporation Commission. After several months, the Commission has received an independent analysis of at least two of these proposals: 100 percent zero-emission energy by 2050 and 80 percent clean energy by 2050.