10 Best Quietest Generators 2025 in the United States

The Jackery HomePower 3000 is a powerful and quiet solar generator designed primarily for home backup during outages and emergencies. It offers a strong 3600W continuous output with a 7200W surge capacity, enough to keep essentials like refrigerators, fans, and WiFi running smoothly. Its 3072Wh LiFePO4 battery provides long runtime, powering a fridge for 1-2 days or household basics for up to 15 hours. One standout feature is its UL-certified uninterruptible power supply (UPS) with a quick ≤20ms switch, ensuring no interruptions for sensitive devices like medical equipment or security cameras.

As an inverter-type generator, it produces clean, stable electricity quietly, making it suitable for indoor use without disturbing noise. Portability is decent for its size and capacity—it weighs about 60 pounds and has a compact design 47% smaller and 43% lighter than similar models, but it’s still somewhat heavy to carry frequently. Charging options are versatile: fast AC/DC recharge in under 2 hours, solar charging through included 2x 200W panels (up to 80% charge in 9 hours), plus car and gas generator support. The built-in smart ChargeShield 2.0 tech intelligently manages charging to extend battery life, which can last for 4,000 charge cycles maintaining 70% capacity. Its integrated transfer switch and multiple output ports (AC, USB-C, USB-A, DC) add convenience for everyday and emergency use.

Though it is not the lightest option for camping or very frequent transport, this generator offers a good balance of quiet operation, strong power output, and smart energy management, making it an excellent choice for anyone seeking a reliable, quiet backup power source for home essentials.

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 HomePower 3600 Plus is a powerful portable solar generator designed primarily for home backup, emergencies, and RV use. It delivers a strong 3600W continuous output, which is enough to run common household appliances like heaters and pumps. One of its standout qualities is that it operates on battery power rather than gas, making it much quieter than traditional gas generators — great if noise is a big concern. Battery-powered units like this are generally whisper-quiet, especially when compared to conventional generators. The unit is an inverter type, meaning it provides clean, stable electricity suitable for sensitive electronics.

Its battery capacity is large at 3584Wh, and it can be expanded significantly by connecting multiple units, supporting longer power needs. Charging options are flexible, including AC, solar, and gas generator input, with fast recharge times which add to convenience. Portability is good for its size; it weighs about 77 pounds but is designed with wheels and a handle, making it easier to move around despite being heavier than smaller models. The HomePower 3600 Plus also boasts safety features like a heat-resistant battery to prevent overheating and a long lifespan with thousands of charge cycles.

The weight and size might be a drawback if you need something very lightweight or compact. While it has an eco/quiet mode implied by its battery operation, it lacks explicit load-sensing features that some other generators offer to optimize energy use automatically. This model is ideal for those who want a quiet, clean, and reliable power source for home backup or off-grid use, especially if you plan to use solar panels for charging, and don’t mind the heavier weight for the increased power capacity.