10 Best Small Solar Generators 2025 in the United States

The EF ECOFLOW Solar Generator DELTA Pro is a robust option for those seeking a reliable power source for home backup or outdoor activities. Its standout feature is the impressive 3600Wh battery capacity, which, when paired with a 3600W AC output, makes it capable of handling most household appliances. The addition of x-boost technology further enhances its utility by allowing it to power devices up to 4500W.

One of its strengths is the high-efficiency solar panel with a 22.4% conversion rate, ensuring good energy capture even in less-than-ideal weather conditions. The option to fully recharge the generator in about 3.5 hours with three 400W panels is convenient for those on the go. Portability is another highlight, with the solar panel weighing only 16kg and designed to be easily carried.

The DELTA Pro also offers versatility with 15 different outlets, including AC, USB, and DC ports, accommodating a wide range of devices. The inclusion of a smart app allows users to monitor and control the generator remotely, adding an extra layer of convenience.

However, the generator is relatively heavy at 99 pounds, which might pose challenges for portability despite the foldable solar panel design. Additionally, while it has strong solar capacity, the initial setup might require patience, especially since the generator and solar panel are shipped separately.

This solar generator is best suited for those who need a substantial power supply, such as homeowners seeking backup solutions or campers who use multiple power-hungry devices. Its durable build and ease of control through a smart app make it a reliable and user-friendly choice, albeit with some portability trade-offs due to its weight.

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 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.