Best Solar Generators for Home Backup (2026)

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Power outages can leave refrigerators, communications equipment, lights, and other essential devices without electricity.
A properly sized solar generator can provide battery backup without the noise and exhaust of a fuel-powered generator during battery operation.

We compared leading solar generators for battery capacity, AC output, expandability, charging options, portability, warranty, and overall value.
Our picks range from large, expandable home backup systems to smaller portable options for essential loads.

Our top pick is the EcoFlow DELTA Pro 3 for its combination of 4,096Wh capacity, 4,000W AC output, expandability, and home-backup capabilities. However, households needing greater output, portability, or a lower-cost option may be better served by one of the alternatives below.

Comparison Table

EcoFlow DELTA Pro 3 — Best Overall Solar Generator for Home Backup

The EcoFlow DELTA Pro 3 is our best overall choice for home backup because it combines substantial battery storage with enough AC output for demanding household backup applications.

Its 4,096Wh base capacity and 4,000W rated AC output put it in a different category from smaller portable power stations designed primarily for camping and charging electronics.

For homeowners, one of its biggest advantages is flexibility.
You can use the DELTA Pro 3 as a standalone portable power station for selected appliances or build a larger backup setup using compatible EcoFlow equipment.
That makes it particularly appealing if you want to start with one unit but may need additional backup capacity later.

Its higher output also makes it better suited to demanding appliances than smaller 1,000–2,000Wh power stations.
However, that capability comes with trade-offs: the DELTA Pro 3 is a large, heavy unit and may be more of a power station than you need if your goal is simply to keep a refrigerator, lights, phones, and internet equipment operating during a short outage.

Key Specifications

• Battery capacity: 4,096Wh
• Rated AC output: 4,000W
• Battery chemistry: LiFePO4 (LFP)
• Expandable: Yes, with compatible EcoFlow equipment
• Best for: Larger home-backup loads and households wanting an expandable system

Why We Picked It

The DELTA Pro 3 offers a strong balance between capacity, output, expandability, and usability.
Rather than recommending the largest system simply because it has the biggest numbers, we think its combination of features makes it a practical starting point for buyers who want serious home-backup capability without immediately moving to a much larger battery system.

Pros

• High 4,000W rated AC output
• Large 4,096Wh base battery capacity
• LiFePO4 battery chemistry
• Expandable system
• Suitable for considerably larger loads than entry-level portable power stations

Cons

• Large and heavy compared with smaller portable units
• Higher purchase cost than basic backup power stations
• May be excessive for households that only need to power a few essentials

Who Should Buy the EcoFlow DELTA Pro 3?

The DELTA Pro 3 is best suited to homeowners who want substantial backup capacity and enough output for more demanding household equipment.
If you only need emergency power for a refrigerator, phones, lights, and a few other electronics, one of the smaller systems further down our list may offer better value.

Jackery Explorer 5000 Plus — Best for Large Homes

The Jackery Explorer 5000 Plus is aimed at households that need substantially more backup capacity than a typical portable power station provides.
With 5,040Wh of battery capacity and up to 7,200W of AC output in the appropriate configuration, it is designed for demanding home-backup applications and longer outages.

Its large battery makes it particularly attractive for households that want to keep multiple essential loads operating rather than simply charging phones and running a few small electronics.
The system can also be expanded with compatible Jackery equipment, giving buyers the option to increase available energy storage as their backup requirements grow.

The trade-off is size and cost.
This is not the system we would choose primarily for camping or occasional portable use.
Buyers who only need to operate a refrigerator, lights, internet equipment, and small electronics may get better value from one of the smaller systems farther down this list.

Key Specifications

• Battery capacity: 5,040Wh
• AC output: Up to 7,200W with supported configuration
• Battery chemistry: LiFePO4 (LFP)
• Expandable: Yes, with compatible Jackery equipment
• Best for: Larger home-backup requirements and extended outages

Why We Picked It

The Explorer 5000 Plus stands out for buyers who prioritize capacity and high power output.
Its combination of substantial battery storage and expansion options makes it more appropriate for serious home backup than smaller portable systems.

The extra capacity is particularly useful when outage duration matters.
However, buyers should calculate the requirements of the appliances they intend to operate rather than choosing a system based on capacity alone.

Pros

• Large 5,040Wh battery capacity
• High output capability
• LiFePO4 battery chemistry
• Expandable for additional energy storage
• Better suited to larger home-backup loads than smaller portable units

Cons

• Considerably more expensive than smaller power stations
• Large system isn’t ideal for buyers prioritizing portability
• May provide more capacity than necessary for basic emergency loads

Who Should Buy the Jackery Explorer 5000 Plus?

The Jackery Explorer 5000 Plus makes the most sense for households preparing for larger electrical loads or longer outages. If your priority is keeping numerous essential devices and appliances available during an outage, its additional capacity gives it an advantage over smaller portable systems.
For basic emergency backup or occasional recreational use, however, a smaller and less expensive power station may be more practical.

BLUETTI Apex 300 + B300K — Best Expandable Home Backup System

The BLUETTI Apex 300 + B300K is a strong choice for homeowners who want an expandable battery backup system rather than a smaller fixed-capacity portable power station. The combination pairs the Apex 300 power station with a B300K expansion battery, providing substantially more stored energy for outages and off-grid applications.

One of its biggest advantages is flexibility. The system is designed around expandable battery storage, allowing homeowners to build a larger backup setup rather than being limited to the capacity contained inside a single portable unit.

The Apex 300 also supports 120V/240V dual-voltage output, making it better suited to more demanding home-backup applications than many smaller portable power stations. As with any home backup system, buyers should calculate their actual appliance loads and expected runtime before choosing a configuration.

Key Specifications

• Combined capacity: 5,529.6Wh
• AC output: 3,840W
• Surge output: 7,680W
• Output: 120V/240V dual voltage
• Battery chemistry: LiFePO4 (LFP)
• Expandable: Yes, with compatible BLUETTI expansion batteries
• Best for: Expandable home backup and longer outages

Why We Picked It

The primary reason we selected the BLUETTI Apex 300 + B300K is its combination of expandability, substantial battery capacity, and dual-voltage capability.

The 5,529.6Wh configuration provides considerably more energy storage than a typical 1–2kWh portable power station, while the expandable design gives buyers greater flexibility if their backup requirements increase.

It is particularly attractive for homeowners who want something more capable than a basic emergency power station without immediately moving to a permanently installed home battery system.

Pros

• Large 5,529.6Wh combined capacity
• Expandable battery configuration
• LiFePO4 battery chemistry
• 120V/240V dual-voltage capability
• 7,680W surge rating
• Better suited to substantial backup loads than smaller portable units

Cons

• Expensive compared with smaller portable power stations
• Larger and heavier than basic emergency backup units
• May provide more capacity than necessary for buyers powering only a few essentials
• A larger backup configuration requires more space

Who Should Buy the BLUETTI Apex 300 + B300K?

The BLUETTI Apex 300 + B300K makes the most sense for homeowners who prioritize expandability and substantial backup capacity.

It is particularly appealing if you want to run more than phones, lights, internet equipment, and a refrigerator during an outage, or if you expect your backup requirements to increase in the future.

For buyers who only need a compact system for a few essential devices, one of the smaller power stations in this guide will likely be more economical.
With one configuration, but anticipate needing additional energy storage later.

If you only need enough backup power for phones, lights, a refrigerator, and a few small devices, a smaller all-in-one power station may be simpler and more economical.
For households planning a larger backup system, however, the AC500’s modular architecture provides room to grow.