how photovoltaics work
Posted March 1, 2008
By admin
Why can’t we use giant magnifying glasses to magnify the sun’s rays and heat water to make electricity?
When I was a kid I used a magnifying glass to burn paper. Rather than using solar energy from Photovoltaics, wouldn’t the magnifying glass allow you to boil lots of water and turn the same turbines our coal powered plants do today?
For such power plants, we need clear sky no cloud and zero velocity of wind. That to 24 hrs of day.
Clear sky will give maximum output and zero velocity of wind not damage glass surface so sun rays will concentrate at one spot..
So it is not commercially viable at least on earth.
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