10 Best Small Solar Generators 2026 in the United States

The EF ECOFLOW Solar Generator DELTA2 is a solid choice for those seeking a portable power solution for camping, RVs, or home backup. It features an impressive battery capacity of 1kWh, which can be expanded up to 3kWh, making it versatile for various needs. The generator offers a powerful output of 1800W, allowing users to run a wide range of appliances, which is particularly beneficial for outdoor activities or emergency situations.

One of the standout features is its 220W bifacial solar panel, which is designed to capture more energy, enhancing charging efficiency during sunny days. This solar generator is built with LFP battery technology, promising a longevity of over 3000 cycles, and its robust battery management system ensures safety during use.

The design prioritizes portability, weighing 58 pounds, which makes it manageable for transport. With 15 outlets available, it accommodates multiple device connections simultaneously, which is a major plus for group outings or extensive power needs. The DELTA2 is a robust and durable option for those who need reliable power in outdoor situations or as a backup at home, with its high output and expandable capacity being key strengths. Potential buyers should weigh the portability aspect and cost against their specific needs.

The EF ECOFLOW DELTA 2 solar generator is a solid pick if you need reliable, portable power for camping, RV trips, or home backup. It comes with a 1024Wh lithium iron phosphate (LFP) battery, which is known for lasting much longer than typical batteries—about 3000+ charge cycles—so you won’t need to replace it anytime soon. The power output is strong at 1800W continuous and 2700W surge, capable of running most household appliances without the noise or fumes of gas generators. With 15 outlets, it can charge many devices simultaneously.

It pairs well with the included two 100W solar panels that have a good 23% efficiency rate, allowing you to recharge the generator in about 5 hours using solar power, which is pretty fast for this type of device. You can also expand the battery capacity up to 3kWh if you need more energy for longer trips or power outages. While it weighs 27 pounds, it remains portable enough for most outdoor uses and features a smart battery management system for safety.

The solar panels and generator arrive separately, so you’ll need to set both up yourself. This generator combines durability, fast charging, and flexible solar compatibility, making it a versatile and eco-friendly power solution for users wanting clean, quiet energy on the go.

The EF ECOFLOW DELTA 3 is a solid choice for anyone needing a portable solar generator for camping, RV trips, or home backup. It packs a 1024Wh LiFePO4 battery, which offers good energy storage and long-lasting durability with up to 4000 charge cycles—meaning it’s designed to last about 10 years of regular use. The 1800W AC power output (2200W surge with X-Boost) is powerful enough to run multiple household appliances simultaneously—up to 13 devices at once—making it versatile for emergencies or outdoor activities.

Charging is a strong point here: the DELTA 3 can fully recharge in just 56 minutes using AC power and accepts up to 500W input from solar panels (sold separately), so it pairs well with solar setups. It also supports multiple fast charging methods, giving you flexibility. The built-in inverter ensures clean and stable power for sensitive electronics.

On portability, it weighs about 27.5 pounds and measures roughly 16 x 8 x 11 inches. While not the lightest in its class, it remains manageable for transport during camping or RV use. The unit’s build quality is robust, with IP65-rated protection against dust, splashes, and oil, which is great for outdoor environments. The DELTA 3 offers strong power output, fast and versatile charging, durable construction, and good expandability—making it a reliable, though somewhat heavier, portable solar generator ideal for serious campers, RV owners, or those wanting a dependable home backup power source.