10 Best Solar Generators 2026 in the United States

The EF ECOFLOW Solar Generator DELTA Pro 3 is a robust and versatile solar generator designed for home use, camping, emergencies, power outages, and RVs. One of its primary strengths is its substantial 4096Wh battery capacity, which can be expanded up to 48kWh, making it capable of providing 2-4 days of backup power for an entire home. The 4000W AC output (scalable up to 12000W) ensures it can power nearly all essential appliances, including heavy-duty ones like a 3-ton central AC or a water pump. This makes it a suitable option for those needing a dependable, high-power solution during outages or off-grid scenarios.

The unit is highly flexible with multiple charging options, including solar panels, AC wall outlets, and even EV charging piles, which means users can recharge it in various situations without relying on fuel. Its portability is enhanced by a handle design, but at 115 pounds, it may not be easy to move around frequently. The generator operates quietly at 30 dB, ensuring minimal disturbance whether used indoors or outdoors. Another major advantage is its quick 10 ms switch-over capability, which ensures uninterrupted power supply to sensitive devices.

The build quality is reliable, featuring automotive-grade LFP cells and IP65-rated battery technology for an extended lifespan and durability. It also comes with a 5-year warranty, which adds peace of mind. However, potential buyers should be prepared for the bulkiness and weight, and note that the generator and solar panels are shipped separately, which may require some patience. This solar generator is ideal for someone looking for a powerful and reliable backup solution for home use or outdoor activities.

The EF ECOFLOW Solar Generator DELTA2 is a robust solution for those seeking clean and portable power, perfect for camping, RVs, or as a backup at home. One of its standout features is the impressive 1800W output, which allows it to power most household appliances without any emissions or noise, making it a great alternative to traditional generators. Its LFP battery offers a significant lifespan of over 3000 charge cycles, which means this unit will last for years with proper care. The ability to expand its capacity from 1kWh to 3kWh by adding extra batteries is a great plus for users with greater power needs.

Portability is another strong point, as the DELTA2 and its 220W bifacial solar panel are designed to be mobile, making them suitable for outdoor activities. The solar panel's ability to capture up to 25% more energy thanks to its bifacial design enhances its efficiency significantly.

The EF ECOFLOW Solar Generator DELTA2 is an excellent choice for individuals or families who need reliable, eco-friendly power for outdoor adventures or backup during outages.

The Anker SOLIX C300 is a compact and portable solar generator with a 288Wh LiFePO4 battery, providing 300W of continuous power and a 600W surge for short bursts. This capacity is suitable for charging multiple small devices and running modest electronics during camping or emergencies. It offers eight charging ports, including three AC outlets and fast two-way USB-C ports with up to 140W, which is versatile for powering a range of devices at once. Portability is a strong point here—its size is smaller than many competitors and it weighs about 9 pounds, making it easy to carry for outdoor adventures.

Recharge speed is impressive, with the ability to reach 80% in about 50 minutes from a wall outlet, and it supports solar recharging with recommended 60W or 100W Anker solar panels (note some panels are not compatible). This flexibility means you can keep it charged even off-grid. The LiFePO4 battery is built for longevity with up to 3,000 cycles and a 10-year lifespan, plus it includes safety features like smart temperature control and impact resistance. It operates quietly at 25dB, so it won’t disturb your outdoor relaxation.

On the downside, the 288Wh capacity might be limiting if you need to power larger devices or longer usage times without recharging. Also, solar panel compatibility is limited to specific Anker models, which could restrict your options if you want to mix and match panels. The weight, while manageable, is heavier than some ultra-light models, so it’s not the best fit if you’re backpacking. This generator suits campers, travelers, and emergency users who want reliable, fast charging in a durable, quiet package without needing very high power output or full solar panel flexibility.