How Big Solar Panel For Fridge

The flow of electricity will vary depending on the amount of sun on our solar panel or if the battery is full or empty large or small.

How big solar panel for fridge.

Solar panels are sold in varying sizes but a 100 watt panel is a commonly found size particularly for rvs. 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. Currently as we speak our self installed rv solar panels are completely running our new refrigerator. Seriously i can t get over how much i love this refrigerator.

Divide that by 30 kwh per month per solar panel and you get 3 8 solar panels. Amp hour ah the steady flow of 1 amp for one hour 5 amp hour 5ah is a flow of 5 amps for one hour or 1 amp for 5 hours. Remember back when we decided to rip out our rv refrigerator because it kicked the bucket and lived out of a cooler for a year. There are the rare dc powered refrigerators that are actually more efficient than the inverter types.

A solar power setup suitable for refrigerator use requires several devices in addition to solar panels. That panel is rated at 100 watts at peak efficiency meaning on a 78 degree cloudless day at solar noon on the equator during the equinox. A device called a charge controller will smooth the flow of power from the panels to the battery. If you have an inverter it will need to handle about twice as much as the maximum load so a 2 200w inverter should work for this example.

Here are a couple panels that would be good options though with varying wattage levels. To start it s an upright fridge freezer combo designed to run off of 24v dc power and provides a total of 10 3 cubic feet of storage space with adjustable temperature levels. The solar panels have to be connected to a battery and inverter to provide power to your fridge. Well folks those days are long behind us.

24 hours a day we have refrigerated food and it is damn glorious. 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. Basically any fridge will do but the more energy efficient means a smaller solar setup is needed. A bit of quick math and conversion to kwh will tell us that each solar panel produces about 30 kwh per month.

Ideally an inverter refrigerator is the best bet but my old refrigerator needs 300watts when on. Batteries are needed to store the power that the refrigerator will use at night or when clouds block the sun.