The Go Green Conference Phoenix brought together several hundred business leaders from the region Tuesday for discussions on sustainable business...

Pinnacle West Capital Corp. has been recognized by Corporate Responsibility Magazine as one of the 100 best corporate citizens in the United States...

Salt River Project will again buy power from a biomass power plant in Snowflake that has undergone an ownership change. The utility said Wednesday...

The Arizona Energy Consortium is planning a sustainable and clean-tech job fair for Monday in partnership with the Ikoloji Sustainability...

NRG Energy Inc. has closed on a $967 million loan guarantee for an Arizona solar plant and finalized the purchase of it from First Solar Inc. The...

A contractor was arrested at Palo Verde Nuclear Generating Station Wednesday after trying to use false identification to gain entry to the plant...

Equities research analysts at Oppenheimer (NYSE: OPY) boosted their price target on shares of Pinnacle West Capital Co. (NYSE: PNW) from $41.00 to...

Regulators say Arizona nuclear plant has made 'significant' progress addressing safety issuesThe nation's largest nuclear power plant has made " substantial improvements" since a number of safety issues led regulators to downgrade its safety rating three years ago, according to a letter ...