3 Best Solar Generators for Your Fridge (With Run Times)

In this article, I have compiled three of the best solar generators that will power full-size refrigerators flawlessly. The generators are listed below.

I will be going in-depth on each solar generator listed and how long it can power your fridge using four common household refrigerators.

The best solar generator for a refrigerator is the Point Zero Energy Titan. It has a 3,000W continuous AC inverter, high solar input (2,000W max), and expandable 2,000Wh batteries to keep your fridge running for days. However, you may want one with different features depending on your needs.

RankingModelHighlights
1. Best OverallPoint Zero Energy Titan– Expandable batteries
– High power output
– Long-lasting batteries
2. Best TechnologyEcoFlow Delta Pro– Can use with smartphone app
– Large battery
3. Best in VersatilityInergy Flex 1500 AC– Expandable batteries
– Only 30 lbs with one battery
Ranking#1#2#3
ModelTitanDelta ProFlex AC
BrandPoint Zero EnergyEcoFlowInergy
My Full ReviewTitan ReviewN/AN/A
ImageTitan solar generator front viewEcoFlow Delta ProInergy Flex 1500 AC
Battery Capacity2,000+Wh3,600+Wh1,069+Wh
Inverter3,000W Continuous; 6,000W Surge3,600W Continuous; 7,200W Surge1,500W Continuous; 3,000W Surge
Price$2,995-3,395$3,599-3,699$1,350-1,500

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. Point Zero Energy Titan

Titan power station outside charging with solar panels
This image shows the Titan solar generator with two batteries attached, totaling 4,000Wh of usable power.

In the table below, I give the estimated hours of runtime for the Titan with four common full-size home refrigerators.

Refrigerator ModelSamsung 28.2 cu. ft. French Door RefrigeratorLG 26 cu. ft. 3-Door French Door Smart RefrigeratorGE 27.7 cu. ft. French Door Refrigerator (Energy Star)Whirlpool 28 cu. ft. Side-by-Side Refrigerator
Energy Consumption (kWh/Year)645708725747
Daily Energy Consumption (Wh)1,7671,9401,9862,047
Standard Titan (2,000Wh) - Usable Hours Without Solar24 hours22 hours21.5 hours21 hours
Titan x2 Batteries (4,000Wh) - Usable Hours Without Solar48 hours44 hours43 hours42 hours
Standard Titan - Usable Hours With Max Solar Input (1,000W)UnlimitedUnlimitedUnlimitedUnlimited
Titan x2 Batteries - Usable Hours With Max Solar Input (2,000W)UnlimitedUnlimitedUnlimitedUnlimited
All "usable hours" estimates were made assuming 90% inverter efficiency.

The Titan solar generator remains one of the most efficient solar generators on the market, and they are perfect for refrigerators.

Leading the market in their technology, the makers of the Titan, Point Zero Energy, put two MPPT charge controllers in the Titan, allowing you to charge with up to 1,000W of solar panels with one battery and 2,000W with two or more batteries attached.

This stat makes it one of a handful of the fastest charging solar generators on the market today.

The Titan comes with removable and expandable lithium-ion batteries that allow you to add as many batteries as you need for your home/cabin with ease.

Each battery is 2,000Wh which is rated for 2,000 charge cycles to 80% battery capacity.

To better understand these numbers, if I were to use the Titan (with one battery) every day and use it completely (from 100%-0% then charge it up again), it would last about 5.5 years before its battery capacity reduces to 80% of its original 2,000Wh.

Scenario – 3 Days Off-Grid With the Titan Solar Generator (4,000Wh)

Titan solar generator on kitchen counter
The Titan is best used with two batteries for powering full-size fridges for multiple days off the grid.

In the event of a power outage, it’s important to know the Titan’s actual numbers to calculate how long you can keep your appliances/electronics running while the power is out.

Below, I have put together an example scenario where a family has no power for three days. I’ve used the Titan as the generator in this example and included other electronics that may be used in an event of a power outage, such as:

  • Full-size fridge (80W per hour on average – Using the LG 26 ft3 3-Door French Door Smart Refrigerator as the example model)
  • Smartphones x 6 (5W x 6 = 30W) – OR iPad OR Laptop
  • 1 CPAP machine (40W)
  • 3 CFL light bulbs for lamps or normal lights (15W x 3 = 45W)

The Titan setup I’ve used in the table below has two total batteries capable of 4,000Wh of total battery capacity. I compared this with three types of solar setups (note that with two Titan batteries, you can have a total of 2,000W of solar panel input):

  • 500W of solar panels
  • 700W of solar panels
  • 1,000W of solar panels

The solar panels have 65% efficiency in this example, which is about what you would get in real life. Good solar panels can get as much as 80% efficiency. As you’ll see, each of the solar arrays worked in this example.

The 500W array came close to powering down towards the last day of the example, so it would not be ideal to use this setup if you needed power for three days’ time.

If you scroll all the way to the very right of the table, you’ll see that the 1,000W array easily ran all of this equipment effectively for three days.

HourFridge (W)CPAP (W)Lights (W)Phones (W)Total W used (Approx.)500W panels (65% efficiency)700W panels (65% efficiency)1000W panels (65% efficiency)Battery life (Wh) Start at 4000WhBattery Life w/ 500W panelsBattery Life w/ 700W panelsBattery Life w/ 1000W panels
1 (10pm)-80-40-45-1653,8353,8353,8353,835
2-80-40-45-1653,6703,6703,6703,670
3-80-40-1203,5503,5503,5503,550
4 (1am)-80-40-1203,4303,4303,4303,430
5-80-40-1203,3103,3103,3103,310
6-80-40-1203,1903,1903,1903,190
7-80-40-1203,0703,0703,0703,070
8 (5am)-80-40-1202,9502,9502,9502,950
9-80-40-1202,8302,8302,8302,830
10-80-802,7502,7502,7502,750
11-80-802,6702,6702,6702,670
12 (9am)-80-30-1103254556502,5602,8853,0153,645
13-80-30-1103254556502,4503,1003,3604,000
14-80-30-1103254556502,3403,3153,7054,000
15-80-30-1103254556502,2303,5304,0004,000
16 (1pm)-80-30-1103254556502,1203,7454,0004,000
17-80-802,0403,6653,9203,920
18-80-801,9603,5853,8403,840
19-80-801,8803,5053,7603,760
20 (5pm)-80-45-1251,7553,3803,6353,635
21-80-45-1251,6303,2553,5103,510
22-80-45-1251,5053,1303,3853,385
23-80-45-1251,3803,0053,2603,260
24 (9pm)-80-45-1251,2552,8803,1353,135
DAY 2 (10pm)-80-40-45-1651,0902,7152,9702,970
2-80-40-45-1659252,5502,8052,805
3-80-40-1208052,4302,6852,685
4 (1am)-80-40-1206852,3102,5652,565
5-80-40-1205652,1902,4452,445
6-80-40-1204452,0702,3252,325
7-80-40-1203251,9502,2052,205
8 (5am)-80-40-1202051,8302,0852,085
9-80-40-120851,7101,9651,965
10-80-8051,6301,8851,885
11-80-80-1,5501,8051,805
12 (9am)-80-30-110325455650-1,7652,1502,345
13-80-30-110325455650-1,9802,4952,885
14-80-30-110325455650-2,1952,8403,425
15-80-30-110325455650-2,4103,1853,965
16 (1pm)-80-30-110325455650-2,6253,5304,000
17-80-80-2,5453,4503,920
18-80-80-2,4653,3703,840
19-80-80-2,3853,2903,760
20 (5pm)-80-45-125-2,2603,1653,635
21-80-45-125-2,1353,0403,510
22-80-45-125-2,0102,9153,385
23-80-45-125-1,8852,7903,260
24 (9pm)-80-45-125-1,7602,6653,135
DAY 3 (10pm)-80-40-45-165-1,5952,5002,970
2-80-40-45-165-1,4302,3352,805
3-80-40-120-1,3102,2152,685
4 (1am)-80-40-120-1,1902,0952,565
5-80-40-120-1,0701,9752,445
6-80-40-120-9501,8552,325
7-80-40-120-8301,7352,205
8 (5am)-80-40-120-7101,6152,085
9-80-40-120-5901,4951,965
10-80-80-5101,4151,885
11-80-80-4301,3351,805
12 (9am)-80-30-110325455650-6451,6802,345
13-80-30-110325455650-8602,0252,885
14-80-30-110325455650-1,0752,3703,425
15-80-30-110325455650-1,2902,7153,965
16 (1pm)-80-30-110325455650-1,5053,0604,000
17-80-80-1,4252,9803,920
18-80-80-1,3452,9003,840
19-80-80-1,2652,8203,760
20 (5pm)-80-45-125-1,1402,6953,635
21-80-45-125-1,0152,5703,510
22-80-45-125-8902,4453,385
23-80-45-125-7652,3203,260
24 (9pm)-80-45-125-6402,1953,135
Total: 72 Hours3rd2ndWINNER (1st)

Titan Solar Generator – Main Specifications

Titan solar generator front view
The Point Zero Energy Titan’s car port outputs are also used to insert its four USB adapters.

Battery Specs

  • Battery Type: Lithium-ion NMC
  • Battery Capacity: 2,000Wh
  • Battery Cycle Life: 2,000 cycles to 80% capacity

Output Ports

  • AC Inverter (w/ one battery): 1,500W continuous, 3,000W surge
  • AC Inverter (w/ two or more batteries): 3,000W continuous, 6,000W surge
  • (1) RV 30A outlet
  • (6) 120V AC outputs
  • (4) USB adapters (8 ports total): Two with two smart USB-A, two with one smart USB-A, and one USB-C
  • (4) DC car cigarette lighter outputs (regulated at 13.8V)

Charging/Input Ports

  • (2) PV (solar) inputs, 35-145V/30A per port (up to 2,000W total)
  • Solar Input (w/ one battery): 1,000W max
  • Solar Input (w/ two or more batteries): 2,000W max
  • (2) AC charging inputs (600W each, 1,200W total)
  • (1) Car cigarette lighter DC input
  • (1) Battery expansion input (for third-party external batteries)

Other

  • Inverter Power Consumption: 5-20W
  • Weight (Module + One Battery): 67 lbs
  • Dimensions (w/ one battery): 18.5 x 12 x 12 inches

Find my full review of the Titan here where I go more in-depth on its specifications and features as well as what it comes with: Titan Solar Generator Review – The Best Large Solar Generator?

The Titan is available on shopsolarkits.com (affiliate link below). They also offer Titan kits with solar panels and/or additional batteries.

2. EcoFlow Delta Pro

EcoFlow Delta Pro front and back view
The Delta Pro’s front side houses nearly all of its output ports, while the input ports and battery expansion compartments are located on its backside.

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.

Refrigerator ModelSamsung 28.2 cu. ft. French Door RefrigeratorLG 26 cu. ft. 3-Door French Door Smart RefrigeratorGE 27.7 cu. ft. French Door Refrigerator (Energy Star)Whirlpool 28 cu. ft. Side-by-Side Refrigerator
Energy Consumption (kWh/Year)645708725747
Daily Energy Consumption (Wh)1,7671,9401,9862,047
EcoFlow Delta Pro (3,600Wh) - Usable Hours Without Solar44 hours40 hours39 hours38 hours
EcoFlow Delta Pro - Usable Hours With Max Solar Input (1,600W)UnlimitedUnlimitedUnlimitedUnlimited
All "usable hours" estimates were made assuming 90% inverter efficiency.

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

EcoFlow Delta Pro
The Delta Pro has a LiFePO4 battery, a powerful AC inverter capable of 3,600W of continuous power, and a recharging rate of 1,600W (max) from solar panels.

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 1500 AC

Inergy Flex with fridge
The Inergy Flex AC powering a fridge during a power outage.

The Inergy Flex is a modular solar generator that has a very similar design to the Titan.

The Flex’s AC ports offer 1,500 watts of continuous power (3,000W surge) while its DC ports are all regulated at 13.8V.

Each Flex battery is 1,069Wh. On the right-hand side of this solar generator, you can insert up to 400W of solar input. With an optional MPPT charge controller from Inergy, you can increase the solar input to 1,200W maximum.

You can also make use of a wall socket or a car charging port to charge up this generator.

Here is the layout of the Flex AC when powering the following home refrigerators:

Refrigerator ModelSamsung 28.2 cu. ft. French Door RefrigeratorLG 26 cu. ft. 3-Door French Door Smart RefrigeratorGE 27.7 cu. ft. French Door Refrigerator (Energy Star)Whirlpool 28 cu. ft. Side-by-Side Refrigerator
Energy Consumption (kWh/Year)645708725747
Daily Energy Consumption (Wh)1,7671,9401,9862,047
Standard Flex AC (1,069Wh) - Usable Hours Without Solar13 hours12 hours11.5 hours11 hours
Flex AC x2 Batteries (2,138Wh) - Usable Hours Without Solar26 hours24 hours23 hours22 hours
Standard Flex AC - Usable Hours With Max Solar Input (400W)UnlimitedUnlimited11.5 hours (generator will shut down in morning because not enough battery for fridge)11 hours (generator will shut down in morning because not enough battery for fridge)
Flex AC x2 Batteries - Usable Hours With Max Solar Input (400W)UnlimitedUnlimitedUnlimitedUnlimited
Flex AC x2 Batteries + MPPT Supercharger - Usable Hours With Max Solar Input (1,200W)UnlimitedUnlimitedUnlimitedUnlimited
All "usable hours" estimates were made assuming 90% inverter efficiency.

The table above mentions the MPPT Supercharger that gives a total of 1,200W of solar input. This is an add-on to the Flex generator that gives you three times the standard charging wattage from solar panels.

Getting this add-on is my recommendation for you if you intend to get a second or third battery pack because it will ensure that you will be able to fully recharge the Flex before nightfall.

This will prepare the generator to power your fridge throughout the entire night.

Inergy Flex AC – Main Specifications

Inergy Flex AC front
The Flex AC power station is highly maneuverable with one battery attached to its module, weighing in at 30 pounds.

Battery Specs

  • Battery Type: Lithium-ion
  • Battery Capacity: 1,069Wh
  • Battery Cycle Life: 400-2,000 cycles to 80% capacity*

*Inergy has not given more accurate information on this wide range of charge cycles (400-2,000). They claim that if you use the system correctly and take proper care of the battery, it can last for up to 2,000 cycles.

Output Ports

  • AC Inverter: 1,500W continuous, 3,000W surge
  • (6) 110-120V AC outlets
  • (2) 60W USB-C PD ports
  • (2) USB-A ports with QC 2.0
  • (2) 5.5mm x 2.5mm DC outputs for LEDs & accessories
  • (2) 10A cigarette lighter ports w/ 13.8V regulated DC output

Charging/Input Ports

  • (1) EC8 input port
  • Solar Charging Time (w/ max input of 400W): 3.5-4 hours
  • Wall Charger (100W): 10.5-hour recharge time
  • Maximum charge rate per flex battery (w/ optional Flex MPPT Supercharger): 1 hour

Other

  • 13.8V Regulated DC Power: Increases run time and stability for 12V devices
  • Weight (w/ one battery): 30 lbs
  • Dimensions: 14 x 8 x 8.9 inches

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

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

From the four different fridge models given in the tables above, you have learned that the Titan, Yeti 3000, and the Flex will do a great job at powering most large home refrigerators when the power goes out.

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.

That being said, the best option for your fridge and other appliances/electronics is the Titan with two batteries and 1,000W+ solar panel input.

This option will ensure that you can run your fridge for days while also supplying power to other essentials you may need while off the grid.

Check out the Titan solar generator kit with two batteries and 1,500W of solar panels here for more information. This is an affiliate link, where I make a small commission on every sale.

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:

  1. How much power is used per day in watt-hours (Wh)
  2. 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 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).

Continue Reading:

Bluetti EB150 vs EcoFlow Delta 1300 – Which Solar Generator is Best?

Can a Solar Generator Run an AC Unit?

Food Storage for Doomsday Preppers

Max Peters

Hi! I'm Max and I am passionate about off-grid solar technology and adventure! I'm using my knowledge of solar generators, solar panels, and everything in between to provide you with the best tools to keep you powered while off the grid. Read more about me here: About Max Peters."

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