VISHIVKARMA SOLAR ENERGY CORPORATION

Introduction to Solar Energy:

It is one of the cleanest sources of renewable energy, falling on our earth in the form of sunlight. Many technologies exist to tap this energy source and employ it for useful applications, but almost all of them can be classified in two broad categories:

Solar Thermal Devices: These devices use the ‘thermal energy’ of the sunlight to produce heat. This heat is absorbed by the specially coated dark surfaces which are in direct contact with a fluid (water, oil or air) depending upon the type of the application. This heat from sun is thus transferred to the fluid, and can be used immediately or stored in well insulated spaces for later use.

Higher temperatures are attained by concentration of sunlight using mirrored surfaces, for example, to produce steam at high pressure as in Solar Thermal Power Stations. Another marginal application of solar thermal energy is by coupling it to the Vapour Absorption Cycle Machines for air-conditioning.

The typical examples are Solar Water Heaters and Solar Cookers.

Solar Electric Devices: These are better termed as Solar Photo Voltaic Devices and convert the solar energy directly to electricity. As the name suggests, these products use the ‘light’ spectrum of the sunlight to produce the electricity. The light falls on a small electronic device called the solar cell and causes it to produce negative and positive charge. A number of these solar cells are used in series and parallel arrangement to create a solar panel of required capacity. A number of these solar panels are used to produce electricity to run electric motors and/or charge batteries for subsequent use.

The typical examples would include solar street lights and traffic control lights, solar water pumps for irrigation etc.