How Many Solar Panels And Batteries Do I Need To Run A Refrigerator

For this system you would need seven 75 watt solar panels and four 300 amp hour batteries.

How many solar panels and batteries do i need to run a refrigerator.

A device called a charge controller will smooth the flow of power from the panels to the battery. So assuming we found some deep cycle batteries rated at 200 amp hours we would need four batteries for our system. 3 hours of run time needed 1500 watts 4500 watts total 12 volts dc 375 amps. A simple answer would be to say that about three to four solar panels could do the job but you wouldn t know which solar panel is best for your case.

A solar power setup suitable for refrigerator use requires several devices in addition to solar panels. The solar panels have to be connected to a battery and inverter to provide power to your fridge. But you will also need a large battery bank to supply. Roughly our fridge draws 1 3 amps per hour.

If you were using 200 watt panels you would need only three panels and four 300 amp batteries. First off the answer behind how much solar power you need to run a refrigerator lies in the number of solar panels you need. Really the question should be how much power do i need to power a refrigerator. You will need about 1 800 watts of 12 volt solar panels or about 1 400 watts of 24 volt panels.

Batteries are needed to store the power that the refrigerator will use at night or when clouds block the sun. To size a battery bank we take the hours needed continuously x watts total watts dc volts amps needed. You will need a total of 375. Because you can t power a fridge on solar panels alone.

So in the case of a 12 volt deep cycle battery we are going to divide our 9 600 number watts a day for the refrigerator by 12 volts which tells us we need 800 amp hours. So we used a whole bunch of confusing math and figured everything out. Solar power vs battery power. How many batteries do i need for my inverter.

Which when you consider the solar setup draws about 5 amps per hour total we have a decent amount of amps per hour leftover to do with what we please.