It s definitely a smart way to go.
Fridge with a 150 watt solar panel.
Batteries are needed to store the power that the refrigerator will use at night or when clouds block the sun.
Divide that by 30 kwh per month per solar panel and you get 3 8 solar panels.
12v camping style fridges will work just fine off a battery charged by a 100watts solar panel with a suitable solar controller.
If we assume a 5 5 x 3 foot solar panel 200 to 250 watts would generate about 0 75 kwh per day it would take three of those panels to power a fridge that uses 46 wkh per month.
A solar power setup suitable for refrigerator use requires several devices in addition to solar panels.
A device called a charge controller will smooth the flow of power from the panels to the battery.
The average refrigerator found in the united states uses approximately 57 kwh per month while the average freezer uses 58 kwh for a combined total of 115 kwh.
And it is really great that you re thinking of using solar.
Whether that panel will be big enough depends on the size of the fridge.
A bit of quick math and conversion to kwh will tell us that each solar panel produces about 30 kwh per month.
Here are a couple panels that would be good options though with varying wattage levels.
A 100 watt solar panel will produce about 75 watts in good conditions.
We have already calculated the power consumption and how big the batteries need to be so we know that after 4 days of little sunshine 3600 watt hours of power need to be put back into the batteries.
Number of solar panels required for the mains fridge freezer.