Just outside of Phoenix is the largest nuke plant, Palo Verde. Also, Arizona is self-sufficient in coal to fire it's powerplants.

Arizona is also the first state to require public utilities to generate a portion of their electricity through renewable sources.

In terms of hydro power, we have a lot.

SRP (Salt River Project) operates several dams along the Salt River and the canal system that produce electricity:

Roosevelt Dam
Horse Mesa Dam
Mormon Flat Dam
Stewart Mountain Dam
Blue Ridge Dam

Crosscut Hydroelectric Plant: It is located on a 116-foot drop in the Crosscut Canal. It began commercial operation in late 1915, has a generating capability of three megawatts (MW).

South Consolidated Hydroelectric Unit: Constructed in 1981, it is located on a 35-foot drop in the South Canal. Its generating capacity is 1.4 MW.
Arizona Falls: Our newest hydroelectric facility located on the Arizona Canal uses SRP water to generate clean electricity, up to 750 kWh.
Through contract power purchases, SRP also receives power from these hydroelectric sources:

Hoover Dam: 79 MW via the Arizona Power Authority
Glen Canyon Dam: 100 MW (less during winter months) via the U.S. Bureau of Reclamation's Colorado River Storage Project.
Parker Dam and Davis Dam: 31.7 MW total (less during winter months).

The issue will be cost.