Dooda Desert Rock

Defending the Environment Against Ourselves

   Aug 12

Photovoltaic Solar Energy

Photovoltaic-Solar-EnergyPhotovoltaic conversion is based on photoelectric effect, basically the conversion of sunlight into electrical energy. To carry out this conversion we need some devices called solar cells.

Usually the power generated from photovoltaic conversion is used to cover small electricity consumption on the same place, such as homes, street services and lighting (public lighting, streets, monuments, bus, etc.), agricultural applications (solar energy can be used to pump water, to irrigate, to refrigerate, to purify water and so on), signaling and communications (such as air and maritime navigation signals. As we can see, applications are vary and can increase over time.

Amont the advantages to use this tecnology, we can see:

  • no pollution at all. As no combustion occurs, PV does not generate neither air pollutants at the point of use nor other negative effects on the environment (such as acid rain, greenhouse gases, etc.)
  • silicon base element for the manufacture of photovoltaic cells is abundant
  • creating energy using PV panels (which usually are installed on roofs) allow to avoid, cables, poles and power lines, so visual impact of the area is nicer
  • energy is produced in total absence of noise
  • no external supply required

Among main disadvantages we can see a great impact on the manufacturing process of the plates plus a certain land visual impact (which is always better than the impact created by electric power lines).

At the end let’s have a look at some varriers to development, which can be administrative and legislative, monetary (as a high initial investments is required), technological and social (this refers especially to lack of information).

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