10 Best Solar Backup Generators 2026 in the United States

The Jackery Solar Generator 5000 Plus is a powerful and versatile solar-backup generator, perfect for home use and emergency situations. One of its standout features is its impressive battery capacity, offering 5040Wh, which is expandable up to 60kWh. This means it can power a whole home for over a day on a single charge, and potentially up to 15 days with maximum expansion.

The generator's power output is equally robust, with a 7200W AC output, making it capable of running heavy-duty equipment such as dryers, water pumps, and ovens, as well as everyday devices. It is equipped with dual voltage outputs (120V/240V), enhancing its versatility for various applications, including recharging RVs during travel. The inclusion of two 500W solar panels ensures it is highly compatible with solar energy, offering a clean and quiet alternative to traditional diesel generators.

The generator has a 0ms UPS mode that instantly switches to stored power during blackouts, ensuring critical devices remain operational without interruption. Moreover, the smart app control feature allows real-time monitoring and control via WiFi or Bluetooth, which is convenient for modern users. Despite its high capacity and output, the generator remains relatively quiet, operating at under 30dB. However, its large capacity and power output make it less portable compared to smaller models, and its weight is likely on the heavier side. Additionally, the price point may be a considerable investment for some users. Its high durability, expansive capacity options, and eco-friendly operation make it a strong candidate for those needing a reliable and powerful home backup solution or emergency power source.

The EF ECOFLOW Portable Power Station DELTA 2 Max is a robust solar-backup generator suited for home backup needs. Its battery capacity of 2048 watt-hours and the option to expand up to 6 kWh offers flexible energy solutions, ensuring that it can handle extensive usage. The power output is impressive, providing up to 2400W and capable of running almost all household devices. With the X-Boost mode, it can handle high-wattage appliances up to 3400W, adding to its versatility.

Charging options are another strength, with the ability to charge up to 80% in just 43 minutes using a combination of AC and solar input, or 1.1 hours with AC alone, making it one of the fastest charging generators in its category. Its solar panel compatibility enhances its eco-friendliness and ensures off-grid usability. The build quality is notable, featuring a 10-year long-lasting LFP battery with 3000 cycles, significantly above the industry average. The quiet operation at 30 dB enhances user comfort, particularly for overnight use.

However, the unit is relatively heavy, weighing 50 pounds, which may affect portability for some users. For those seeking a reliable, fast-charging, and expandable solar-backup generator, the DELTA 2 Max offers substantial value despite its heavier weight.

The Jackery HomePower 3600 Plus is a strong option if you're looking for a reliable home backup solar generator. It offers a sizable battery capacity of 3584Wh, which can be expanded up to 21kWh with additional units—enough to power a small household for over two weeks, making it suitable for emergencies or RV trips. Its 3600W power output (7200W in parallel) means it can handle heavy appliances like pumps and dryers, providing versatile use at home. The device supports multiple charging methods, including AC, solar panels, DC, and even a gas generator, with fast recharge times—solar charging is reasonably quick at about 4 hours. This flexibility ensures you won’t be left powerless for long.

It features an advanced lithium iron phosphate (LFP) battery, known for safety and longevity, with impressive thermal resistance and up to 6,000 cycles, meaning it should last many years even in extreme conditions. Portability is thoughtfully addressed with a telescoping handle and wheels, plus it is lighter and smaller than many competitors, although at 77 pounds it’s still relatively heavy for some users. The inverter supports dual voltage (120V and 240V), useful for a wide range of appliances, enhancing its practicality as a home backup.

On the downside, while the unit is easier to set up than many, the weight could be a challenge if frequent transport is needed. Also, solar panels are sold separately, so that adds to initial costs. This generator is particularly well suited for homeowners or RV users who want a robust, expandable, and safe power solution with good charging options and portability balanced with solid build quality.