In this article, I have compiled three of the best solar generators that will power full-size refrigerators flawlessly. I will be going in-depth on each solar generator listed and how long it can power your fridge using four common household refrigerators.
Here’s what you’ll learn:
- How to size up your solar generator in relation to your fridge model.
- A breakdown of power consumption in refrigerators using a traditional household fridge example.
- A quick view of the three power stations I’ll be covering.
- In-depth analysis of my #1 solar generator for fridges (along with an example scenario).
- My second solar generator on the list has the edge in terms of software/pairing capabilities.
- Last but not least is my third power station on the list – it’s versatility is what sets it apart.
What Size Solar Generator Do You Need to Run a Refrigerator?
A solar generator with at least a 2,000Wh (2 kWh) battery will run a full-size refrigerator for one day. To run the fridge for several days on end, you will need to have a solar input of at least 400W to completely recharge the battery during the day.
However, you may need to adjust your solar panel input depending on the size of your refrigerator.
“Domestic fridge power consumption is typically between 100 and 250 watts. Over a full day, a fridge records between 1 to 2 kilowatt-hours (kWh) of total energy usage…”
Ryan McCarthy of Reduction Revolution
Overall, the next question you may have is “What else can I power with a solar generator other than a fridge?”
To answer that question, you will first need to calculate the power consumption of the other devices/appliances you intend to run and compare that to the specifications of your solar generator.
To ensure you get enough power to run the items you’re looking to power, it’s best to get a battery (or batteries) that are bigger than you think you’ll need. This will ensure that you get the energy required to run your appliances with ease.
The next specification to review is the solar input. You need a high solar input in order to recharge the generator fast enough for it to run during the night and into the next day.
With these calculations, the intended outcome is for you to run your fridge for days while also supplying power to other essential electronics/appliances you may need while off the grid.
Power Consumption in Refrigerators
To be sure of whether you should power up your refrigerator with a solar generator, you must check the ratings on your fridge’s nameplate or in the manual listed online for your specific model.
The usual power rating given for refrigerators is in kWh per year.
For example, I’m going to use the 26 ft3 3-Door French Door Smart Refrigerator made by LG Electronics.
The listed power consumption is 708 kWh/year. In order to use a solar generator with this fridge, we need to know:
- How much power is used per day in watt-hours (Wh)
- How much power the fridge is consuming at any given time
After this information is calculated, we can then match it with a solar generator that can perform according to the refrigerator’s stats.
How much power is used per day in watt-hours (Wh)
From the LG fridge example, take its 708 kWh and divide it by 365 to get the daily kWh power consumption, which is about 1.94 kWh.
Next, we’re going to multiply by 1,000 because a kWh (kilowatt-hour) is 1,000Wh (watt-hours). This comes out to 1,940Wh.
How much power the fridge is consuming at any given time
A modern refrigerator typically only uses power for about eight hours per day. If you think your fridge runs for longer or if you have an older fridge, I recommend getting a power meter that will show you the details of your fridge’s power consumption.
All you do is plug it into the refrigerator’s power cord and then plug it into the wall. However, for the LG example, I have, let’s say it uses its power for eight hours per day.
Full-size refrigerators use anywhere from 100-250 watts of power when they are on and active.
We want to find out where in this spectrum the LG fridge runs in terms of watts (W).
Taking the daily power usage in watt-hours (1,940Wh), divide this by the hours when the fridge is powered on through one day of work. We said that in one day it will only be on for eight hours total.
1,940 watt-hours used per day / 8 hours of operation = 242.5 watts
The LG refrigerator uses about 243 watts of power when it is on.
This calculation allows us to know how big of a battery we need for the solar generator (in watt-hours) and how much power we need it to give to the fridge when it turns on (in watts).
Best Solar Generators for Your Fridge – Quick View
| Solar Generator for Refrigerator | Specs |
|---|---|
| 1. BLUETTI AC500+B300K | AC Output: 3,000W Capacity: 2,765Wh Price: Price not available |
| 2. EcoFlow Delta Pro | AC Output: 3,600W Capacity: 3,600Wh Price: Price not available |
| 3. Inergy Flex Tactical | AC Output: 1,500W Capacity: 1,058Wh Price: $2,000.00 |
The best solar generator for a refrigerator is the Bluetti AC500 paired with a B300K expansion battery. With up to 3,000 W continuous AC output (5,000 W with two or more B300K), LiFePO₄ batteries, and fast solar (up to 3,000 W), this combo keeps your fridge running for multiple days at high efficiency.
If you’re interested in using DIY solar generators to power your fridge, I have an article breaking down the components necessary to do so here: Can You Run a Refrigerator on Solar Power? Advantages & Breakdown.
1. Bluetti AC500 + B300K
In the table below, I give the estimated hours of runtime for the AC500 + B300K with four common full-size home refrigerators.
Bluetti AC500+B300K – Usable Hours with Full-Size Refrigerators
A single AC500 paired with one B300K (2,764.8 Wh usable) can power an average fridge (~1.8 kWh/day) for approximately 1.25 days. Adding a second B300K doubles capacity (~5,530 Wh), extending run-time to over 2.5 days without recharging.
| Refrigerator Model | Run Times w/o Solar | Run Times w/ Max Solar Input |
|---|---|---|
| Samsung 28.2 ft3 | 33 hours (x1 battery) 67 hours (x2 batteries) | Unlimited (w/ one or more batteries) |
| LG 26 ft3 | 30 hours (x1 battery) 61 hours (x2 batteries) | Unlimited (w/ one or more batteries) |
| GE 27.7 ft3 | 30 hours (x1 battery) 60 hours (x2 batteries) | Unlimited (w/ one or more batteries) |
| Whirlpool 28 ft3 | 29 hours (x1 battery) 58 hours (x2 batteries) | Unlimited (w/ one or more batteries) |
If you’re looking to power a refrigerator reliably off-grid for several days, the Bluetti AC500 paired with one or more B300K expansion batteries is an excellent choice.
With 3,000 W continuous AC output (up to 5,000 W if you stack two or more B300Ks), and modular LiFePO₄ storage starting at 2,764.8 Wh per unit, you can tailor runtime precisely to your needs.
Dual-input charging (AC + solar) enables ultra-fast recharging, and a wide variety of output ports—AC, USB-C, wireless charging, and RV DC—makes it versatile enough to support both your fridge and essential electronics.
Appearances may be bulky (these are heavy systems), but performance is unmatched in this class.
Bluetti AC500 + B300K – Main Specifications
| Feature | Specification |
|---|---|
| AC Inverter Output | 3,000 W continuous output with one B300K; 5,000 W with two or more B300K |
| Solar Input | Up to 3,000 W solar via MC4; supports dual‑input charging (AC + solar) for faster recharge |
| Battery System | LiFePO₄ expansion battery: B300K at 2,764.8 Wh; up to six can be stacked (18,432 Wh total) |
Battery Specs
- B300K Expansion Battery adds 2,764.8 Wh of LiFePO₄ storage per unit.
- Supports 4,000+ charge cycles to ~80% health—built for long life.
- Modular: stack up to six B300K for maximum capacity of 18,432 Wh, enough to run a typical fridge for 6+ days.
Output Ports
The AC500 provides comprehensive port options, ideal for powering refrigeration and household appliances:
- AC outlets: 3× 120 V/20 A; L14‑30; TT‑30; 50 A outlet (supports heavy appliances)
- USB ports: 2× USB‑A 5 V/3 A; 2× USB‑A 18 W; 2× USB‑C 100 W (PD)
- DC outputs: 12 V/30 A RV port; 24 V/10 A car outlet; 2× 15 W wireless charging pads on top.
Charging/Input Ports
- Recharging flexibility with six input methods: wall AC, solar, car, generator, lead‑acid battery, or dual‑charging combinations (e.g. solar + AC).
- Solar support up to 3,000 W; AC input supports up to ~4,500 W; together can recharge the battery to 80% in around 50 minutes.
Other Highlights
- App & touchscreen control: Manage ports and monitor battery health via touchscreen or mobile app (Wi‑Fi/Bluetooth).
- Heavy build: Both AC500 and B300K are substantial in weight—designed to be stationary rather than mobile.
- High inverter resilience: Pure sine wave inverter handles large appliance surges reliably.
Find my full guide to the Bluetti AC500 + B300S system here, where I go in-depth on the specs, expandability, charging speeds, and ideal use cases. The B300K is nearly identical, with the key difference being a slightly smaller battery capacity (2,764.8 Wh vs. 3,072 Wh for the B300S)—but otherwise offers the same performance and modular features.
The AC500 + B300K is available at bluettipower.com and several other authorized retailers. You can also find bundles that include solar panels, additional B300K batteries, and home integration kits.
My ideal setup for powering a fridge, lights, router, and other essentials during an outage is the Bluetti AC500 + two B300K batteries with at least 1,800W of solar panels.
- [Upgraded and Supercharged] – An AC500 with a 5,000W inverter accepts up to 6 B300K expansion batteries, boosting its capacity to Max…
- [16 Versatile Ports] – The NEMA 14-50R, TT-30, and L14-30 ports are perfect for heavy-duty appliances. Just plug in what you want to charge, and…
2. EcoFlow Delta Pro
The EcoFlow Delta Pro is a high-capacity solar generator equipped with a 3,600Wh LiFePO4 battery.
Specifically for powering home refrigerators, check out the table below for running hours with and without solar recharging.
EcoFlow Delta Pro – Usable Hours with Full-Size Refrigerators
| Refrigerator Model | Run Times w/o Solar | Run Times w/ Max Solar Input |
|---|---|---|
| Samsung 28.2 ft3 | 44 hours (x1 battery) 88 hours (x2 batteries) | Unlimited (w/ one or more batteries) |
| LG 26 ft3 | 40 hours (x1 battery) 80 hours (x2 batteries) | Unlimited (w/ one or more batteries) |
| GE 27.7 ft3 | 39 hours (x1 battery) 78 hours (x2 batteries) | Unlimited (w/ one or more batteries) |
| Whirlpool 28 ft3 | 38 hours (x1 battery) 76 hours (x2 batteries) | Unlimited (w/ one or more batteries) |
With 12 output ports, the Delta Pro can power other electronics and appliances in addition to your fridge. You can also extend its battery capacity from 3.6kWh to a maximum of 25kWh with multiple Smart Extra Batteries, which are specifically designed for the Delta Pro.
One of the major benefits of this system is its included application called the EcoFlow app. This application comes in handy when using it to power your fridge and other appliances as you can monitor the charge/battery status as well as turn on/off ports from your phone.
This option is great for people who would like to use a solar generator with a refrigerator while on and off the grid. You can use the EcoFlow app’s Direct Connection Mode feature while off the grid to monitor your Delta Pro.
When on the grid, you can connect your smartphone to the generator via WiFi to have it power your fridge whenever you need it to.
EcoFlow Delta Pro – Main Specifications
Battery Specs
- Battery Type: LiFePO4 (LFP)
- Battery Capacity: 3,600Wh
- Battery Cycle Life: 3,500 cycles to 80% capacity
Output Ports
- AC Inverter: 3,600W continuous, 7,200W surge
- (1) RV 30A AC outlet
- (4) 120V AC outputs
- (2) USB-A ports (12W max per port)
- (2) USB-C ports (100W max per port)
- (2) DC5521 outputs (38W max per port)
- (1) 12V car port (126W max)
Charging/Input Ports
- Solar charging input: 11-150V/15A (1,600W max)
- Solar charge time @ max input (1,600W): 2.8-5.6 hrs
- AC charging input: 120V/15A (1,800W max); 240V/12.5A (3,000W max)
- AC charge times: 2.7 hrs @ 1,800W; 1.8 hrs @ 3,000W
- EV charging (using EV charger): 1.7 hrs @ 3,400W
- Car charging input: 12V or 24V battery @ 8A
Other
- Weight: 99 lbs
- Dimensions: 25 x 11.2 x 16.4 in
There are additional port options next to the main output section on the Delta Pro. I have a 60-second clip below showing you the details.
If you’re considering this option, I recommend using Shop Solar Kits because they have the Delta Pro at $100 less than EcoFlow’s website and they also include a remote monitor. You can compare the options below to see if any deals/changes occurred.
3. Inergy Flex Tactical 1500
The Inergy Flex Tactical 1500 is a ruggedized upgrade over the standard Flex 1500—engineered for extreme conditions and modular scalability. If you’re backing up a fridge or any critical appliance and need dependable performance in harsh environments, this is the Tactical version you’ll want.
Here is the layout of the Flex Tactical when powering the following home refrigerators:
Inergy Flex Tactical – Usable Hours with Full-Size Refrigerators
| Refrigerator Model | Run Times w/o Solar | Run Times w/ Max Solar Input |
|---|---|---|
| Samsung 28.2 ft3 | 13 hours (x1 battery) 26 hours (x2 batteries) | Unlimited (w/ one or more batteries) |
| LG 26 ft3 | 12 hours (x1 battery) 24 hours (x2 batteries) | Unlimited (w/ one or more batteries) |
| GE 27.7 ft3 | 11 hours (x1 battery) 23 hours (x2 batteries) | 11-15 hours (x1 battery) Unlimited (w/ two or more batteries) |
| Whirlpool 28 ft3 | 11 hours (x1 battery) 22 hours (x2 batteries) | 11-14 hours (x1 battery) Unlimited (w/ two or more batteries) |
This unit can run a standard refrigerator for approximately 12 hours on a single battery under moderate use. Add a second battery to extend run-time to 24+ hours, making it suitable for weekend outings or short power outages. Dual-input charging allows users to recharge from solar and AC simultaneously, reducing downtime.
With a pure sine wave inverter and high-quality output ports, the Flex Tactical is safe for sensitive electronics and powerful enough for home or field use. It’s ideal for powering appliances, lighting, networking gear, and more—quietly and efficiently.
Key Features & Specifications
- Battery Capacity: 1,058 Wh (98 Ah) Li‑ion NMC battery, expandable modularly for extended runtime
- Inverter Output: 1,500 W continuous AC power, 3,000 W surge capacity — pure sine wave for safe appliance usage
- Solar Input: MPPT support for 14–90 V DC up to 30 A (~600 W max solar input)
- Charging Options: Accepts solar, AC (wall), and vehicle (DC) charging; supports simultaneous inputs for faster recharging
Build & Durability
- Weight & Size: Compact form factor (14″ × 8″ × 8.9″), weighing 41 lbs with one battery
- Ruggedized Housing: Reinforced steel enclosure with skid plate, tactical‑grade latches, and optional EMP SHIELD protection — built to withstand sand, frost (−22 °F), vibration, and hail
Ports and Outputs
- AC Output: 6 × 110–120 V grounded AC outlets (60 Hz)
- USB: 2 × USB‑C (65 W PD/QC 3.0), 2 × USB‑A (QC 3.0)
- DC Outputs: 2 × regulated 13.8 V cigarette lighter ports (20 A max combined), 2 × 5.5 mm DC ports for Inergy Basecamp LED lights
- Other: Earth‑ground stud, vented steel body, and protected LCD screen
If you need reliable, rugged power for refrigeration, communications, or field gear, the Flex Tactical 1500 delivers. With a 1,058 Wh Li‑ion battery (expandable), 1,500 W AC output (3,000 W surge), and built-in cold weather and EMP-ready features, this power station is built for off-grid living, emergency prep, and tactical deployments.
Despite its robust build, it remains compact and modular, making it one of the most versatile and durable solar generators in its class.
Get the Flex Tactical 1500 on Inergy’s website — use code CXVBV5656 for 10% off.
I have a comparison article that puts the Inergy Flex up against the Titan solar generator. This article will give you a better idea of their similarities and differences to find the best model for your needs. You can find this comparison post here: Yeti 3000 vs. Titan – Two of the Most Powerful Solar Generators.
Continue Reading:
- Bluetti EB150 vs EcoFlow Delta 1300 – Which Solar Generator is Best?
- Can a Solar Generator Run an AC Unit?
Refrigerator Models Used In Tables
| Refrigerator Model | Energy Consumption (kWh/Year) | Daily Energy Consumption (Wh) |
|---|---|---|
| Samsung 28.2 ft3 French Door | 645 | 1,767 |
| LG 26 ft3 French Door | 708 | 1,940 |
| GE 27.7 ft3 French Door | 725 | 1,986 |
| Whirlpool 28 ft3 Side-by-Side | 747 | 2,047 |
Last update on 2026-03-06 / Affiliate links / Images from Amazon Product Advertising API