Solar energy is one renewable.Solar power plants in Russia are becoming more common.This energy is safely introduced into the life of people, and it is natural, because it not only dries, but it is also environmentally friendly, unlike fossil fuels.Active use of solar cells does not cause pollution of the area and the emission of harmful substances into the atmosphere.Solar power contribute to energy independence and national security.
Prospects
sun - an inexhaustible source of energy that when used properly, can produce enough electricity for industry and for residential sector.The potential of it is huge.That light is the source of life on the planet.The conversion of light into energy - has long been an invention.Back in the 16th century, invented a machine that pumps water due to the fact that the sun-heated air expands and provided the necessary pressure.A similar unit is forced to operate a printing press in the late 18th century.
The principle of
Modern solar power plants capture light using photovoltaic cells.They collect light energy and convert it into electricity.For this use a mirror which has a parabolic shape.Its curvature is designed so that every point on its surface reflects the rays in the center of focus.Any power Solar has the power, which is measured in the sun.How many times more powerful than the sun shines on the point of focus the reflected rays, so many of the power station.
The fact that the power of light rays in its original form is not enough to generate electricity.To strengthen it, using a magnifying glass and concave mirrors, which light is extracted from a lot of heat.Rays reinforced with a few dozen times, carry a lot of thermal energy is used to heat a special oil in a thin tube.Upon reaching boil, it is given, and transmits heat to the water which forms steam.His pressure drives a turbine that generates electricity.Under ideal conditions, this process can last indefinitely.Therefore, solar power and are so promising.On the planet there are a lot of places with a huge solar activity, such as deserts.
problems
However, the reality is not so simple.The planet and star are in constant motion, and the angle of incidence, respectively, is constantly changing.Therefore require special motors that adjusts the plane with photocells at the desired angle.This is not the only difficulty.There is also a night, and the weather can spoil.In addition, solar power plants are expensive, though well pay off in time.One thing is clear that the future of humanity depends on solar energy, which is inexhaustible.In addition, it is very safe and clean.A hydrocarbon feedstock is required to ever end.
