Keep Your Cool in Arizona Heat

Backup Power Guide for Arizona: 2026 Edition

Arizona presents a starkly different backup power scenario than the rest of the country. Here, keeping the food cold is secondary; keeping YOU cool is the primary safety concern. In July and August, indoor temperatures can reach dangerous levels within hours of an A/C failure. Sizing a generator to handle the massive "starting surge" of a central air conditioner is the most critical step for Arizona homeowners.

Dealing with the "Hard Start"

Air conditioners require 3-4 times their running wattage just to start up. A 4-ton unit might run at 4,000 watts but need 15,000 watts to kick on. If your generator is undersized, the A/C compressor will stall, potentially damaging both the unit and the generator. We strongly recommend installing a "Soft Start" kit on your A/C, which can reduce this surge by 60-70%, allowing you to use a smaller, more fuel-efficient generator to keep the lights and well pump running.

Liquid vs. Air Cooled

In 115°F ambient heat, air-cooled engines struggle to shed heat. For whole-home standby in Phoenix or Tucson, a **liquid-cooled** generator (similar to a car engine) is far more reliable and lasts longer than cheaper air-cooled models, which may shut down due to thermal overload during the hottest part of the day—exactly when you need them most.