Phoenix spent the summer of 2023 under a record that still sounds unreal: 31 straight days at or above 110°F. Now picture the grid dropping out in the middle of that streak. Arizona doesn’t belong to a regional grid operator the way Texas leans on ERCOT or the Mid-Atlantic leans on PJM — APS, SRP, and Tucson Electric Power each run their own system on the Western grid, and a monsoon haboob or microburst can knock a neighborhood offline in minutes. When that happens during a heat wave, the only question that matters about backup power is blunt: can it keep something cold running? If you’re already comparing Arizona solar quotes, note that a grid-tied rooftop array shuts off the instant the grid fails (anti-islanding safety rules), so panels alone won’t help mid-outage unless you pair them with storage.

That’s the job a Jackery solar generator does. The three HomePower units below solve three different versions of the same problem, from keeping a Mesa fridge alive to running central AC in a Scottsdale house. Here’s how they compare.

ModelHomePower 30003600 Plus5000 Plus
Capacity~3,072Wh3,584Wh5,040Wh
Output3,600W3,600W7,200W
Expandable toNot expandable21kWh60kWh
Runs central ACNoNo (window AC yes)Yes
240VNoNoYes
Best forFridge + Wi-Fi + lights, 1–2 daysEssentials + a window ACWhole home, central AC

Reading the table for a Phoenix summer

The line that decides everything is “Runs central AC.” Only the Solar Generator 5000 Plus clears it: 5,040Wh of capacity, 7,200W of output, both 120V and 240V, and expandable to 60kWh. That’s the surge and split-phase voltage a central air handler and condenser need to start and keep running. For a larger north Phoenix or Scottsdale home where losing the AC in July isn’t survivable for an older resident or a pet, this is the unit to size around.

▶ Shop the Solar Generator 5000 Plus — 7,200W, 120V/240V

If you only need to keep one room livable — a bedroom cool enough to sleep through a monsoon-season outage — the HomePower 3600 Plus is the flexible middle. It offers 3,584Wh and 3,600W, expands to 21kWh, and ties into your home’s circuits through a transfer switch, so it can carry the essentials plus a window or portable AC without wiring in a whole-home system.

▶ Shop the HomePower 3600 Plus — 3,584Wh, expandable

And if the goal is simply to protect the fridge, Wi-Fi, lights, and a fan or two, the HomePower 3000 covers those essentials for one to two days and ships with solar panels that refill it in Arizona’s near-constant sun — so it keeps going even if APS or SRP takes longer than expected to restore. It can’t run central AC, but for a Tucson apartment or a smaller Chandler home it’s the value pick.

▶ Shop the HomePower 3000 — panels included use code DEAL5

Don’t wait for the next haboob

Monsoon storms arrive fast and sell out backup power just as fast. Charged and sitting in a closet before the season, any of these three is ready the moment the lights flicker. It’s worth checking the current deals before you need one.

▶ See current Jackery deals


Keep reading: Arizona solar incentives & costs · Best solar generators for home backup (Nevada) · Best solar generators for home backup (New Mexico)