Tuesday, September 20, 2016

History Of Solar Power And Their Lightings

By Amalia Denilson


It is possible to harness the energy from the sun and convert it into either electricity or heat using PV (photo-voltaic) or ST (solar thermal) technologies respectively. Solar collectors transform solar radiation into heat and transfer that heat to a medium (water, solar fluid, or air). Then solar heat can be used for heating water, backup heating systems or for heating swimming pools.

Today, people use solar energy to heat buildings and water and to generate electricity. Solar energy accounts for a very small percentage of U.S. energyâ€"less than one percent. Solar energy is mostly used by residences and to generate electricity.

A solar panel is composed of a package of photovoltaic cells. It can be used in a larger photovoltaic system for generating and supplying electric energy to residents and other commercial applications. Solar radiation that falls directly on the solar panel is converted into direct current. The electric energy output of each panel varies from 100 to 320 W.

A solar thermal collector, on the other hand, collects heat by direct absorption of sunlight. It consists of a collector that converts energy from sunlight into a more usable form of energy.

The efficiency of the solar collectors is measured by the amount of sunlight hitting them, which in turn gets converted into electricity. Solar collectors with the small surface area are highly efficient.

However, there is a barrage of cheap solar collectors being imported and sold, that do not comply with the flag statute. This is bad for a number of reasons. Imported stuff is cheaply made and more importantly, the designs, materials, colors, and methods do not compare well with the better quality, longer-lasting, and correctly designed solar collectors made by American manufacturers. The Flag Company Inc specialized in flags and flagpole lightings offered a special edition of solar-powered collectors to provide innovative solutions for individual projects.




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