It s definitely a smart way to go.
Fridge with a 150 watt solar panel.
When researching just what a 100 watt panel will get you the general answer seems to be it depends.
Here are a couple panels that would be good options though with varying wattage levels.
A bit of quick math and conversion to kwh will tell us that each solar panel produces about 30 kwh per month.
12v camping style fridges will work just fine off a battery charged by a 100watts solar panel with a suitable solar controller.
And it is really great that you re thinking of using solar.
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.
A solar power setup suitable for refrigerator use requires several devices in addition to solar panels.
I have a 50 litre waeco which.
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.
Divide that by 30 kwh per month per solar panel and you get 3 8 solar panels.
Whether that panel will be big enough depends on the size of the fridge.
Number of solar panels required for the mains fridge freezer.
Batteries are needed to store the power that the refrigerator will use at night or when clouds block the sun.
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.