For basic essentials — fridge, lights, router, and phone charging — a 2,000–3,000W generator covers most homes. To run central AC or a sump pump, you’ll need 5,000W or more. Add up the running watts of every appliance you want to run, then add a 20% buffer. When in doubt, size up.

Neither is universally better — it depends on your situation. Gas wins for raw power, cost per watt, and unlimited runtime. Solar wins for silence, zero emissions, no fuel hassle, and indoor safety. Many serious preppers own both: gas for heavy loads, solar for quiet daily backup.

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Never run a gas generator indoors or in a garage — even with the door open. Gas generators produce carbon monoxide, an odorless gas that kills within minutes. Always operate them at least 20 feet from any door or window. Solar and battery generators produce zero emissions and are completely safe indoors.

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