10 Best Ecoflow Solar Generators 2025 in the United States

The EF ECOFLOW DELTA Pro Ultra X is a powerful solar generator designed primarily for whole-home backup and extended outdoor use. With a massive battery capacity starting at 12,288Wh and expandable up to 180kWh, it can easily power essential household appliances like lights, air conditioning, and even electric vehicle chargers. Its high power output of up to 12,000 watts ensures it can handle heavy loads, making it suitable for blackout situations or off-grid living.

This generator intelligently manages energy by switching between solar, battery, and grid power automatically, which can help reduce electricity bills. It also supports adding DIY solar panels for clean, renewable charging—an important feature for users wanting to maximize solar input. The system responds instantly to power outages, keeping sensitive devices like medical equipment running without interruption.

Portability-wise, while it is not as light or compact as smaller generators, it’s still designed to be movable without professional installation. Weighing around 70 pounds and measuring roughly 27 by 19 by 9 inches, it’s manageable but not something you'd casually carry around. The unit includes multiple outlets suitable for various devices. The weight and size mean it's better suited for semi-permanent setups rather than frequent transport. Also, the inverter and extra batteries ship separately, which could add setup complexity. Its premium capabilities come with a higher price point, so it fits best for users needing serious backup power or off-grid energy solutions rather than casual camping.

The DELTA Pro Ultra X is a robust, scalable solar generator offering reliable, clean energy with smart features aimed at homeowners and outdoor power users who want flexibility and long runtime more than just simple portability.

The EF ECOFLOW Solar Generator Delta 3 is a powerful and versatile solar generator suitable for home backup, camping, and RV use. It features a 1024Wh lithium iron phosphate (LFP) battery, known for its long lifespan—lasting up to 10 years with minimal capacity loss after thousands of charge cycles. The capacity can be expanded up to 5kWh by connecting additional battery packs, making it ideal for users needing more power over time.

This generator delivers 1800W continuous AC power and 100W through USB-C, allowing you to operate multiple devices or appliances simultaneously—up to 13 at once, including some power-hungry ones using its X-Boost feature. Charging is impressively fast, fully charging in under an hour via AC or solar input, with a 220W bifacial solar panel included. The bifacial panel is more efficient than typical ones, collecting energy from both sides to speed up outdoor charging.

Portability is reasonable for its category, weighing about 43 pounds, which is manageable but not ultra-light, making it best for users who can carry it short distances or transport it by vehicle. It offers various outlets, including AC and USB options, covering most device needs, and comes with multiple charging cables and a protective bag for added convenience. However, the size and weight make it less suited for backpacking or very remote treks. Additionally, since the solar panel and power station ship separately, setup may require some assembly. This model is a strong option for those seeking reliable, fast solar charging with robust power output and long battery life, ideal for emergency backup and outdoor activities where vehicle transport is possible.

The EcoFlow DELTA 3 Classic is a solid choice for those needing reliable portable power, whether for home backup, camping, or RV use. With a 1024Wh lithium iron phosphate (LiFePO4) battery, it offers long-lasting durability and a lifespan that can exceed 10 years with daily use. Its 1800W continuous output (with a surge capacity of 3600W via X-Boost technology) can handle common household appliances like refrigerators and microwaves, plus various electronics.

The unit features ultra-fast charging, reaching 80% battery in about 45 minutes through AC power, and can recharge fully via solar panels in roughly 2.5 hours when paired with a 500W panel (sold separately). This makes it convenient for users who want clean, renewable energy on the go. Portability is reasonable at about 27 pounds, and the compact size allows for relatively easy transport to outdoor activities. The DELTA 3 Classic includes 15 outlets, including AC, USB-C (100W output), and other USB ports, covering a broad range of devices.

Smart app control adds user-friendly monitoring and customization, which helps maximize battery use and manage power efficiently. One potential drawback is the solar panel is not included, so additional investment is needed for full solar capability. Also, while the weight is manageable, it might still be a bit heavy for some users to carry frequently. The EcoFlow DELTA 3 Classic balances high power output, fast recharging, and durable battery technology, making it well-suited for anyone looking for a versatile, robust solar generator, especially for camping, home backup, or RV travel.