10 Best Portable Solar Generators 2025 in the United States

The EF ECOFLOW Solar Generator DELTA Pro 3 stands out with its impressive 4096Wh battery capacity, which is expandable up to 48kWh, making it highly suitable for extended power outages, home use, and emergencies. Its compatibility with a 400W portable solar panel ensures that it can harness renewable energy efficiently. With a powerful 4000W AC output (scalable up to 12000W), it can power most home appliances, making it versatile for various uses including camping and RV trips.

The numerous charging methods, including solar panels, gas generators, and EV charging piles, add to its versatility and convenience, reducing dependency on fuel. Additionally, the EcoFlow app allows for easy remote monitoring and control, enhancing user experience. The ultra-fast 10 ms switch-over capability ensures a seamless power supply for sensitive devices, which is a significant advantage during power interruptions.

However, the generator's weight of 150 pounds affects its portability, making it less convenient to move around, especially for camping trips. The product's build quality is robust, thanks to automotive-grade LFP cells and IP65-rated battery technology, and it comes with a reassuring 5-year warranty. Despite its quiet operation at just 30 dB, the size and weight could be a drawback for those looking for a highly portable option. Ideal users would be homeowners seeking reliable backup power, campers with larger setup vehicles, and RV owners who can handle the weight. This generator is less suited for those who need a lightweight and easily portable solution.

The EF ECOFLOW DELTA 2 portable solar generator is a solid choice for camping, RV use, or as a home backup power source. It comes with a 1024Wh Lithium Iron Phosphate (LFP) battery, which is known for lasting much longer than typical batteries—up to 3000 charge cycles—so it can reliably serve you for years. It pairs with two included 100W solar panels that have a good 23% conversion efficiency, allowing for relatively quick solar charging. Using two panels, it charges in about 5 hours, and even faster with a third panel if you add one.

This generator offers a strong 1800W continuous output (2700W surge), enough to power most small to medium appliances, and it supports up to 15 devices at once through multiple output ports. That variety is great for different needs while camping or during power outages. Weighing 27 pounds, it’s reasonably portable, though a bit heavier compared to smaller models, so it’s better suited for users who don’t need to carry it long distances on foot.

One standout feature is its expandable capacity—you can add extra batteries to boost storage up to 3kWh, which is useful if you need longer power supply without recharging frequently. The unit also charges quickly from AC power, helping you refill its battery fast when solar isn’t an option. The weight and size might be a bit bulky for some users looking for ultra-light gear, and the solar panels arrive separately, requiring some setup. While it’s built with a durable battery management system for safety and longevity, the generator is priced at a premium level reflecting its advanced features. In summary, the DELTA 2 is best for those who want a reliable, long-lasting solar generator with strong output and expandable options, and are okay with moderate weight and upfront setup.

The BLUETTI Solar Generator Elite 200 V2 is a powerful and reliable option for those needing portable off-grid power, especially for camping or emergency backup. It boasts a large 2073.6Wh lithium iron phosphate battery, known for a very long lifespan of up to 17 years and 6000+ charge cycles, which means it can last much longer than typical portable power stations. With a strong 2600W continuous output (5200W peak), it can power up to nine devices simultaneously through its four AC outlets, making it versatile for various needs.

Charging is a highlight here — using BLUETTI's TurboBoost and MPPT technology, the generator can recharge to 80% in just under an hour when using AC and DC sources, plus it supports solar panel charging, allowing you to harness the sun for eco-friendly power. The built-in app adds convenience by giving real-time monitoring and control.

On the downside, this unit weighs about 53 pounds, which is relatively heavy compared to smaller portable generators, so it’s best suited for situations where you don’t need to move it frequently over long distances. The size is compact for its capacity but still demands some effort to transport. The build quality is solid, designed to handle extreme temperatures safely, but it’s not explicitly ruggedized for rough outdoor conditions like some competitors. If you prioritize high capacity, fast charging, and long battery life for camping trips or home backup, the BLUETTI Elite 200 V2 is a solid pick. However, if ultra-lightweight portability is important for your adventures, you might want to consider lighter models. This generator strikes a good balance between power and durability for most outdoor and emergency power needs.