Arizona Public Service customers set a new all-time energy use record July 9 during the summer's hottest day so far.

Phoenix's data center boom is overloading the power grid and some worry it'll lead to higher electricity bills.

On the hottest day of the year so far, two major electric companies reported record energy use across Valley households on ...

Both of the Valley’s major electric providers saw their highest ever energy demand Wednesday as the temperature soared to 118 ...