TSMC, the world’s largest semiconductor manufacturer, has achieved better yield in its new Arizona factory than its Taiwan ...

Candidates are vying for three seats on the state corporation commission, which has tremendous power over energy decisions.

The Arizona Lottery will continue its environmental conservation efforts by working with the Desert Botanical Garden ...

A Phoenix park got over 65 new trees Friday in hopes of reducing rising temperatures in the Maryvale neighborhood.

3. Credit: Joe Rondone/Arizona Republic PHOENIX—Approval of the construction of two gas power plants without public comment.

Voters can decide between two radically different philosophies over how to manage utilities and energy use in Arizona.

Such was the challenge issued when an Arizona snake catching service shared a photo from one of its calls on Facebook and ...

Arizona is home to about 4,000 species of plants, with 300 of them considered dangerous to humans and animals according to ...

A big cool down is coming to the Valley this week as it's been a long, record-shattering summer with 80 days of 110-degrees ...

During a webinar on Wednesday hosted by the Potomac Institute for Policy Studies, Taiwan Semiconductor Manufacturing US ...