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Solar Cell technology

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Solar Cell technology
 
 

About solar energy

 
Solar Energy generally refers to the sun's radiant energy; it is generally used in modern power generation. Solar technologies are broadly characterized two ways, passive solar(photothermal conversion) and photovoltaic conversion .Solar is an emerging renewable energy.
 
Solar Energy advantages:
 
Drivers for energy sources
Fundamentals don't change
Increased energy demand
Rising costs
Diminishing fossil fuel resources
Environmental concerns and regulations
National security
 
Vast addressable market for low-cost solar PV
Electricity world market size
 

About Photovoltaic

 
Photovoltaic (PV) is a method of generating electrical power by converting solar radiation into direct currentelectricity using semiconductors that exhibit the photovoltaic effect. Photovoltaic power generation system consists of solar panels, controller and inverter. They are mainly constituted by the electronic components which do not involve mechanical components, so the equipment is extremely refined, reliable and long life which is easy to install and maintain.
 

About Concentrated Solar Power

 
Concentrated solar power (CSP) systems use mirrors or lenses to concentrate the sun's direct radiation (DNI) .Electrical power is produced when the concentrated light is converted to heat, which drives a heat engine (usually a steam turbine) connected to an electrical power generator.
 

About CSP

 
The solar thermal collector is a key component for solar thermal system. It is designed to collect heat by absorbing sunlight which will produce huge heat energy and provide power. The collectors have different shapes, flat and vacuum pipes. Both of them absorb solar radiation into heat energy through special absorption coating , then ,heat transfer and then pass to water (water is a heat transfer fluid, others cab be distilled water and gas, etc.) so that the water temperature is rising. And it reaches purpose of water heating. According to the temperature difference, collector can be divided into low, medium temperature and high temperature. Solar collectors are device for absorbing solar radiation and transferring heat to the refrigerant.

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