Monday, June 4, 2012

Solar Cells- More Free Electricity

    Solar energy is harvested in two ways; passive or active; depending on the method through which it is harvested.  Active uses photovoltaic panels and thermal solar collectors.  Passive would adding a green house to the southern side of your home to use it for heating your home.
      Electrical power is measured in kilowatt hours.  One kilowatt hour is enough to burn a standard light bulb for 10 hours.The average household uses about 866 kilowatt hours in a months time.  This can easily be achieved with a solar energy system. 
     I would suggest you start slowly.  It takes 10-12 panels to power a house and about $10,000.00 with installation cost.  Each solar panel has 40 solar cells.  As with a windmill system, it takes an array of batteries and a voltage inverter for storage.
     The output of solar panels is directly related to how much sunlight they receive.  So as clouds cover the sun the output of the cells will diminish.  At maximum output you will get about 0.5 volts and approximately 2 amps per cell.  At 40 cells per panel you will get 20 volts multiplied by ten is about 200 volts at 2 amps is a pretty good charge to run your home.
     I would suggest if you are going to use solar panels you combine them with windmills.  Because the sun doesn't shine with the same intensity everyday.  Whereas the wind blows even at night. 
     Also I would use high amp output batteries to increase the current. 

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