Advantages And Disadvantages Of Solar Energy

CHAPTER 3: SOLAR PHOTOVOLTAIC ENERGY CONVERSION

3.1 Introduction to Solar Energy

Solar energy is that energy which is gets by the radiation of the sun. Solar energy is present on the earth continuously and in abundant manner. Solar energy is freely available. It doesn’t produce any gases that mean it is pollution free. It is affordable in cost. It has low maintenance cost. Only problem with solar system it cannot produce energy in bad weather condition. But it has greater efficiency than other energy sources. It only need initial investment. It has long life span and has lower emission. The sun is the original source of almost all the energy used on earth. The earth receives a stock ring amount of energy from the sun, as much energy falls

Solar Panels made from photovoltaic cells (or PV for short). Simply broken-down photo means light and voltaic related to the production of electricity. Photovoltaic technology enables the creation of electricity using light. PV cells have at least two layers of semiconductors: one that's positively charged, and one that's negatively charged. When the light shines on the semiconductor the electric field across the junction between these two layers causes electricity to flow. The greater the intensity of light the stronger the electricity flow will be. The light that hits the panels is converted into clean electricity. This is a silent operation here because there are no moving parts. The electricity generated by the panels comes in the form of a direct current. By installing an inverter, it is converted into alternation current, so it's in

Monocrystalline cells are produced from pseudo-square silicon wafers, substrates cut from boules grown by the Czochralski process, the float-zone technique, ribbon growth, or other emerging techniques. Multicrystalline silicon solar cells are traditionally made from square silicon substrates cut from ingots cast in quartz crucibles Crystalline silicon cells are made from thin slices cut from a single crystal of silicon (monocrystalline) or from a block of silicon crystals (polycrystalline). CST is the most common technology representing about 90% of the market today. Its efficiency ranges between 14% and 22%. Two main types of crystalline cells can be