APS, with 1.3 million customers, has capacity to generate 9,742 megawatts of electricity, while SRP has capacity to generate 9,385 megawatts for its 1.1 million customers.

Last year, APS’ record was set at 8,210 megawatts. In addition, SRP customers also set a record of 8,324 megawatts between 3 and 4 p.m., around the time the mercury reached 118 degrees at ...

Initially, over 43,000 SRP and APS customers in Phoenix, Glendale, the East Valley and Gold Canyon were without power, but APS and SRP crews worked around the clock restoring service.