What Size Solar System Do I Need To Run A Fridge

5pm 9pm 4 hours.

What size solar system do i need to run a fridge.

A good rule of thumb is 4 hours. Evening fridge and lights. Your appliances use more energy than you may realize it s amazing just how much power the average home uses. This surge happens only for a split second.

It would help if you were a little more specific about the power consumption of your appliances but i will suggest the following. You would need about 4x 80 watt panels and about 860 ah 12 v battery bank. In the day with just your fridge running. 1200 watts divided by 1 000 equals 1 2 kwh produced per day.

300 times 4 is 1200 watts. Hence it will not need to turn on as often. 15 mins on 15 mins off 30 mins hour 2 7 2 1 35 amps. Total consumption over 10 hours 13 5 amp hours.

Estimate that fridge cycles. Evening running fridge and lights. If you run your a c for 4 hours per day that means you would need 14 solar panels to cover 120 hours per month of use. According to energystar gov recent models sized in the 21 to 24 cubic foot range use about 560 kwh per year i want to use a monthly number so divided by 12 that s roughly 46 kwh per month from an upright modern refrigerator.

You multiply the combined wattage of the solar panels by the number of hours sunlight they will receive per day. After startup the fridge uses power according to the nameplate voltage and current. Daytime running fridge only. First we should assume a modern normal sized fridge running constantly.

When the air compressor on a refrigerator starts up it needs a surge of power that can use three times the normal running current.