10 Best Solar Backup Generators 2025 in the United States

The Jackery Solar Generator 1000 v2 is designed to be a powerful yet highly portable solution for those needing reliable power in various settings, like outdoor adventures or emergency situations. With a robust 1,500W AC output and a 3,000W surge peak, it’s capable of running multiple devices simultaneously, including demanding appliances like fridges and electric pots. Its battery capacity of 1,070Wh is substantial, providing ample power for extended periods.

Weighing just 23.8 lbs and featuring a foldable handle, it's easy to transport, making it ideal for outdoor enthusiasts or those living off-grid. The 200W solar panel compatibility ensures that you can recharge it sustainably, adding to its versatility for off-grid use. The inclusion of various charging options, including fast USB-C and multiple AC ports, means you can power a wide range of devices. The one-hour fast charging feature is particularly impressive, though it requires enabling the emergency charging function in the app each time.

Durability is a strong point with its LFP battery, designed to last over 10 years with a high cycle life. However, the need to use the Jackery App for certain features might be a drawback for those not keen on relying on apps for device management. Additionally, the separate shipping of the generator and solar panel could be a minor inconvenience. The Jackery Solar Generator 1000 v2 stands out for its powerful performance, portability, and durability, making it a solid choice for users needing a reliable and versatile power source.

The EF ECOFLOW DELTA Pro Ultra is a powerful solar backup generator designed primarily for home use, emergency situations, and large outdoor setups like RVs or camping. Its standout feature is a large 6144Wh battery capacity, which can be expanded significantly up to 90kWh by linking multiple units—enough to keep essential home devices running for days or even weeks. With a strong 7200W continuous power output and the ability to triple that for very heavy-duty appliances, it easily supports things like central air conditioners and other large household equipment. The inverter supports both 120V and 240V, offering flexibility depending on your power needs.

Charging options are versatile and convenient: you can recharge the battery via solar panels, wall outlets, electric vehicle chargers, or even traditional generators. Notably, it charges very quickly—within 2 hours for a full charge—which is faster than many similar products. The built-in app lets you prioritize home circuits, helping to extend backup time and manage energy use smartly, which also helps reduce electricity bills when combined with solar input. The unit is designed with durability and quiet operation in mind, including a 0-ms transfer time to protect sensitive electronics during outages and a silent mode for low loads.

The product is quite heavy at nearly 183 pounds, which may limit portability despite its intended home and recreational uses. Also, it arrives in separate packages, so setup might take some time. This generator suits users looking for a robust, expandable, and smart home backup power solution who don't mind the weight and complexity involved.

The Jackery Explorer 1000 v2 Portable Power Station is a reliable and versatile option for those needing a solar backup generator for camping, emergencies, RV trips, or off-grid living. It offers a substantial 1,070Wh battery capacity and a powerful 1,500W AC output, which can handle various appliances, including fridges and electric pots. With its lightweight design (23.8 lbs) and foldable handle, it is highly portable and easy to carry around.

The one-hour fast charging feature is particularly impressive, ensuring you can get back to using your devices quickly, although it requires activation through the Jackery App for optimal battery health. The LFP battery promises a long lifespan, capable of maintaining over 70% capacity after 4,000 charge cycles, translating to more than 10 years of use. Multiple charging options, including USB-C, USB-A, DC car port, and AC ports, add to its versatility, allowing you to charge several devices simultaneously.

The smart app control feature enhances user convenience by offering different charging modes to suit various needs. However, it is noteworthy that the solar panels are optional and not included in the package, which might be a drawback for some users. Additionally, while the default 1.7-hour charging mode is designed to preserve battery health, it requires manual switching to the one-hour mode via the app every time, which may be cumbersome for some. The build quality is robust, making it a durable option for outdoor use. This power station is particularly suitable for those who value portability, fast charging, and a long lifespan in their solar backup generator.