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With the increase of daily temperatures, power bills tend to follow. I've been experimenting with offsetting my own power bill with solar, and found a sustainable solution. The Anker Solix F3800 Plus is an expandable battery with a 3.84kWh capacity, working like a cross between a traditional gas generator, a permanent home battery backup system, and a portable battery.

Also: Switch to plug-in solar? My advice after testing the DIY energy tech at home

Don't let its wheels fool you, though. The F3800 Plus isn't designed for tent camping (though you technically could if you can easily lug around all 136 pounds). It's a portable battery turned into a legitimate whole-home backup system, capable of running refrigerators, portable ACs, pumps, power tools, and even some central AC systems.