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What is the difference photovoltaic solar panels and thermal solar panels?

Assume sunlight is incident with average intensity 500 W/m2 on a ``farm’’ of photovoltaic panels which operate?

  • Assume sunlight is incident with average intensity 500 W/m2 on a ``farm’’ of photovoltaic panels which operate at 10% efficiency. How much area to you need to be equivalent to a 1GW nuclear plant?

  • Answer:

    Of the available sunlight 10% is used by your farm is what your problem says. So 500*10% is usable. So if you need 1 GW, a giga being 10 to 9th power, you need 10^9/(500*0.1) sq. metres area of plant. Punch into a calculator.

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