10 Best Quietest Generators 2025 in the United States

The Generac 18,000-Watt Gas-Powered Portable Generator is a robust option for those needing substantial power output. With an impressive 18,000 watts from its 816cc EFI engine, it is well-suited for emergencies, recreational use, and home backup power.

One of its standout features is the COsense Technology, which offers essential safety by protecting against carbon monoxide. Additionally, TruePower Technology ensures that sensitive electronics and tools can be safely powered, thanks to its low total harmonic distortion (THD) of less than 5%.

This generator also includes a low-oil pressure shutdown feature, which helps prevent engine damage and enhances its longevity. Its large fuel capacity allows for extended runtimes, making it durable for long-term use. However, at 442.8 pounds, it is quite heavy, which could impact its portability despite being labeled as portable. This weight makes it less ideal for frequent transport. The generator runs on gasoline, which is readily available but may not be as convenient as other fuel types like propane.

The Jackery Portable Power Station Explorer 300 is an excellent choice if you're looking for a quiet, portable generator primarily for outdoor use like camping, road trips, or emergency backup. Since it's a battery-powered inverter generator, it produces no fumes and zero noise, which is a big plus compared to traditional gas generators. It offers a steady 300 watts of power through two AC outlets and additional USB ports, allowing you to charge up to six devices at once — perfect for small electronics like phones, cameras, or laptops. Weighing just 7.1 pounds and sized compactly, it’s easy to carry around and fits nicely in a backpack. The Explorer 300 also supports solar charging with an optional Jackery SolarSaga 100 panel, making it a green and renewable power source for longer trips.

One limitation is its modest power output, so it won't run large appliances or power tools. Also, while it has no noise rating listed, its design as a battery unit means it operates silently—ideal for noise-sensitive environments. Its quick recharge time (about 2 hours to 80%) is another convenience factor. If you need a quiet, lightweight generator for charging small devices on the go, this model fits well, but it’s not suited for heavy-duty power needs or extended off-grid use without solar panels.

The Jackery Solar Generator 1000 v2 is a solid choice for a quiet and portable power source suited for camping, road trips, or emergency backup. It utilizes LiFePO4 battery and inverter technology, producing clean, stable power quietly compared to traditional gas generators. Its 30 dB overnight charging mode indicates very quiet operation during use.

Featuring a 1,500-watt continuous output and 3,000-watt surge capacity, it can support common appliances like refrigerators and small AC units, making it versatile for both outdoor and home applications. The 1,070Wh battery capacity provides a decent runtime, and the fast charging option allows the unit to fully recharge in about an hour when emergency mode is enabled, which is convenient but may slightly affect battery health if used frequently.

Weighing approximately 32 pounds and equipped with a foldable handle, the unit offers reasonable portability, though it might be somewhat heavy for long-distance carrying. The built-in app control enhances user experience by allowing easy mode switching to optimize quietness and efficiency. The solar panel is sold separately, adding to setup complexity and cost. While the battery boasts a long lifespan of over 10 years with proper care, the 2-year warranty may be considered short relative to the price. This generator is a dependable, eco-friendly option that is easy to use and charges quickly.