10 Best Solar Backup Generators 2025 in the United States

The EF ECOFLOW Solar Generator DELTA Pro features a robust 3600Wh battery capacity, making it a substantial choice for home backup, camping, RVs, and emergencies. Its power output reaches up to 3600W with the ability to boost up to 4500W, ensuring that it can handle a range of household appliances and electronic devices. The generator includes 15 versatile outlets, including 5 AC outlets and multiple USB ports, which can cater to various charging needs simultaneously.

The inclusion of a 400W portable solar panel is a significant advantage, providing efficient solar charging even under less than ideal weather conditions. The panel's 22.4% conversion rate is quite efficient in the solar panel market. With single or multiple panel setups, recharging times range from 3.5 to 11 hours depending on the configuration used, offering flexibility in charging options.

Portability is somewhat balanced, with the solar panel being foldable and easy to carry at 35.3 lbs, while the main unit weighs 99 lbs, which might be cumbersome for some users to move around frequently. The build quality is notable with an IP68 waterproof rating, ensuring durability in various environments. However, the generator and solar panel are shipped separately, which could be inconvenient if timing is critical. The smart app control feature adds modern convenience, allowing users to monitor and control the generator remotely via Wi-Fi or Bluetooth. This solar generator is an excellent choice for those needing reliable and versatile backup power, although the weight of the main unit could be a consideration for portability.

The Jackery HomePower 3000 is a strong choice if you need a home backup solar generator that can handle essential appliances during outages. Its large 3072Wh battery capacity and 3600W continuous (7200W surge) power output mean it can keep devices like refrigerators, fans, and WiFi running for hours, even a day or two for some items. The built-in UL-certified UPS ensures quick switching during power interruptions, which is great for sensitive electronics. It pairs well with the included 2x 200W solar panels, allowing solar charging up to 80% in about 9 hours, which is convenient for longer outages or outdoor use.

Portability is decent considering the power it offers—it weighs 59.5 pounds and is designed to be smaller and lighter than similar models, though it’s still somewhat heavy for frequent carrying. The unit supports various charging options, including AC outlet, car charger, and even gas generators, adding flexibility. The LiFePO4 battery technology provides excellent durability with up to 4000 cycles and retains a good charge over time, which is important for long-term investment.

The inverter is high quality, supporting stable power delivery with multiple output ports (AC, USB-C, USB-A, DC), including fast charging options and a dedicated RV port, making it versatile for different uses at home or on the road. However, bear in mind that the solar panels and the power station are shipped separately, which may require some setup. Although the price might be higher than smaller generators, the Jackery HomePower 3000 excels in home backup and emergency readiness with solid reliability and quick charging. It is well suited for those seeking a powerful, durable system that’s easy to maintain and can handle multiple devices, but less ideal if you need something very lightweight or low-cost for occasional use.

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.