Diese Präsentation wurde erfolgreich gemeldet.
Die SlideShare-Präsentation wird heruntergeladen. ×

Solar Cell (solar photovoltic cell)

Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Nächste SlideShare
Solar photo voltaics
Solar photo voltaics
Wird geladen in …3
×

Hier ansehen

1 von 17 Anzeige

Solar Cell (solar photovoltic cell)

Herunterladen, um offline zu lesen

Solar energy is the energy emitted by the sun.
It is the most abundant and renewable form of energy.
Photovoltaic cells convert light energy into electrical energy.
Assembly of PV cells make solar panels.
Solar panels finds its applications in many fields such as domestic lighting, solar vehicles etc.

Solar energy is the energy emitted by the sun.
It is the most abundant and renewable form of energy.
Photovoltaic cells convert light energy into electrical energy.
Assembly of PV cells make solar panels.
Solar panels finds its applications in many fields such as domestic lighting, solar vehicles etc.

Anzeige
Anzeige

Weitere Verwandte Inhalte

Diashows für Sie (20)

Ähnlich wie Solar Cell (solar photovoltic cell) (20)

Anzeige

Aktuellste (20)

Anzeige

Solar Cell (solar photovoltic cell)

  1. 1. SOLAR PHOTOVOLTAIC SYSTEMS for more knowledge follow: [https://sah786.wordpress.com] [www.slideshare.net/SaHussain1] [www.facebook.com/Sah92786]
  2. 2. Department of Electrical Engineering of Government Engineering collage Dahod :Presented By: Arshad Hussain  9019  9002  9022  9124  9106  9095 [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  3. 3. Contents Basic Concept of Solar energy Physics of Photovoltaic cells PV modules Emerging Technologies Environmental Aspects Indian Scenario Application of solar panel Disadvantages of solar cells [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  4. 4. What is solar energy? radiant energy emitted by the sun. The Sun daily provides about 10,000 times more energy to the Earth than we consume. The earth receives 174 petawatts [1015 watts] of solar radiations from the sun. The total energy absorbed by earth’s atmosphere, oceans, land mass is 3,850,000 exajoules [1018 joules] per year. The energy reaching earth’s atmosphere consists of about 8% UV radiation, 46% visible light, 46% infrared radiations. [https://sah786.wordpress.com]or[www.slideshare.net/SaHussai n1]
  5. 5. What is a Photovoltaic Cell? also called solar cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect. Solar Cell (PV) Light Electricity [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  6. 6. Photovoltaic effect Sunlight is composed of photons, or particles of solar energy that contain various amounts of energy corresponding to the different wavelengths of the solar spectrum. The electrons present in the valence band absorb energy and, being excited, jump to the conduction band and become free. These highly excited electrons are accelerated into a different material by a built-in potential. This generates an electromotive force, and thus some of the light energy is converted into electric energy. [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  7. 7. Basic structure of a SOLAR CELL [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  8. 8. When sun light falls on silicon metal cell, the photon energy allows the electrons from the P- layer to move to the N-layer, creating an electric potential difference on the semiconductor borders. If these borders are connected to a load by conductive wires, there will be a flow of electric current, getting back the electrons to the P-layer and starting the process again. A photovoltaic cell generally has low current and voltage levels, of about 3 A and 0.7 V, respectively. Operation of a solar cells [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  9. 9. For this , many cells are connected in series and/or parallel to obtain the expected current and voltage levels and this set of cells is mounted on an appropriate structure to create a photovoltaic module. Assemblies of cells are used to make solar modules , also known as solar panels and these panels are combined to form arrays. PV modules [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  10. 10. Advantages of Solar PV System It converts solar energy directly into electrical energy without going through thermal-mechanical link. It has no moving parts. Solar PV systems are reliable , modular , durable and generally maintenance free. These Systems are quiet , compatible with almost all environments, expected life span of 20 years or more. It can be located at the place of use and hence no distribution network is required. [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  11. 11. Disadvantages of Solar PV System At present the costs of solar cells are high, making them economically uncompetitive with other conventional power sources. The efficiency of solar cells are low. Large no. of solar cell modules are required to generate power. As solar energy is intermittent, some kind of electrical energy storage is required, which makes the whole system more expensive. [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  12. 12. [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  13. 13. In terms of overall installed PV capacity, India comes fourth after Japan, Germany and U.S. (With Installed capacity of 110 MW). India today is the second largest manufacturer in the world of PV panels. The Delhi Government has decided to make use of solar power compulsory for lighting up hoardings and for street lighting . Solar power generation is merely concentrated in three states. Gujarat Rajasthan Maharashtra Where India now and its total installed capacity? [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  14. 14. Conclusions • Solar energy is the energy emitted by the sun. • It is the most abundant and renewable form of energy. • Photovoltaic cells convert light energy into electrical energy. • Assembly of PV cells make solar panels. • Solar panels finds its applications in many fields such as domestic lighting, solar vehicles etc. • Cost and area are big disadvantage of solar cells. [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  15. 15. [1] Non conventional Energy Sources. By. R.P. Ajwalya, Edition (2009) [2] Energy Conservation Technics. BY, R.P. Ajwalya , Edition (2009) [3] https://sah786.wordpress.com [4] http://gunam.metu.edu.tr [5] http://electrical4u.com [6] http://electrical-engineering-portal.com [7] https://www.slideshare.net/SaHussain1 [8] http://sah9.blogspot.in References: [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  16. 16.  [https://sah786.wordpress.com]  [www.slideshare.net/SaHussain1]  [www.facebook.com/Sah92786]  [https://www.linkedin.com/in/arshad-hussain-8b0a2613b] [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]
  17. 17. ThankYou!!! [https://sah786.wordpress.com]or[www.slideshare.net/SaHussain1]

×