Interest in photovoltaics:



practice :
The sun, as a renewable energy source gives as two types of solar energy:
The heating energy which heat recovery is by exchange between a heat transfer fluid in the sun and a usage circuit (storage tank or heat pump).
Photovoltaic, which uses the principle of the solar cell discovered by Edmond Becquerel in 1839 to produce electric power.

Ecological:
The exploitation of solar energy reduces the consumption of resources called "fossil" which is probably the cause of global warming and air pollution.
It contributes to sustainable development and also meets the guidelines of the European Council in March 2007 passed a decree setting goals to achieve by 2020:
20% reduction of greenhouse gases emissions
20% reduction of energy consumption
20% share of renewable energy in our consumption.
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