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# Solar Panel: How Many Watts Does A Small Solar Panel Need To Work? (7/8/2011)

My friend and i are conducting an expirement and we need to know how many watts are needed to power a solar panel please answer now!!

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Shoveldr July 8, 2011 at 3:53 am

You don’t power a solar panel a solar panel is a power source.

The wattage of the solar panel will depend on the size.

OneLastRevolutionary July 8, 2011 at 4:21 am

A solar panel doesn’t need watts.According to the amount of sunlight it will produce voltage, amperage and wattage.

Amber July 8, 2011 at 4:29 am

Refrigerator: 1/4 HP ~= 190 Watts
Furnace fan (running gas or oil for heat): 1/3 HP ~= 250 Watts
TV or small computer: about 100 – 150 Watts
(the stove/oven would run on gas)

In my estimation, that’s the absolute bare minimum about 550 – 600 Watts. The furnace fan could double as a normal fan in the summer, but it is necessary in the winter. One of my former co-workers actually got by on that amount of power for a few years, in his off-the-grid home.

So, to live a bit more comfortable, add a washing machine, a computer, a toaster, a microwave oven (small as possible), some ceiling fans, and you have a peak power that could range at several 1000 Watts. In reality you’d have a battery bank that could handle the peaks so, maybe you could get by with 1500 Watts worth of solar panels if you are energy-frugal. You also have to have power to charge the batteries every day for night-time use.