Most people probably look for a gas generator as the easiest way to get backup power in a pinch but a dual-fuel generator, which can run on gas or propane, is a more dynamic alternative. With two ways to power your generator, you have more options when fuel is in short supply. Dual-fuel generators also give you more control over secondary factors like noise and emissions: Gas is easy to get at any station, but propane burns cleaner and quieter. The best dual-fuel generators not only offer the best of both worlds but come equipped with a slew of slick features to make your user experience easy and safe.

Best overall: DuroMax XP12000EH

Best small: A-iPower SUA2000iD

Best portable: Westinghouse iGen4500DF

Best electric start: Wen DF1100X

Best budget: DuroMax Duro Star DS5500EH

How we picked the best dual-fuel generators

As a tech enthusiast and camping addict, I've looked at a wide range of portable power stations and related accessories—such as the Goal Zero Yeti 1000 Core portable generator and the best home wind turbines—for the likes of Popular Science, Scientific American, The Daily Beast, and more. (And if you're looking for things to do with all that power, consider charging one of the best ebikes I've written about.) I've researched each of these dual-fuel generators extensively via a combination of first-hand trials, input from experts, and reviews from real-world consumers.