Solar energy is a unique alternative direction in energy, which is based on the use of sunlight to obtain electric energy. It is used as an inexhaustible energy source. In addition, it is an environmentally friendly way of generating and accumulating energy.
Scientists around the world have long been interested in obtaining electricity with the help of the sun, this story has more than a dozen years. And since then the most effective and profitable methods for obtaining inexpensive electricity and thermal resources from solar exposure were identified:
Geothermal energy technologies are used through the optimal heating of a particular surface, which absorbs solar radiation well. Then the heat received will be evenly distributed by water or other liquid coolant. Warm liquid can be used for heating purposes or heating water for household or industrial purposes. However, such methods require a clearly established mechanism of the main action. Which may be the engine of stirling, or any types of steam machines. For established work of the latter, you can use carbon dioxide, freon or ordinary water vapor.
Solar energy provides for the use of methods of solar aerostat power plant. Their action is based on a significant generation of water vapor inside the tank of the balloon, which occurs due to heating of the surface, which is previously covered with special absorbing spraying. The main advantage of this method is the ability to accumulate energy resources, which will be enough for use at night.
Obtaining electricity using special photocells is called a photovoltaic – through solar panels.
Solar energy also provides for the receipt of energy resources from the air flow, which is formed by a special turbogenerator.
Scientists note that such a source of production of electric energy and heat as solar energy is absolutely inexhaustible and affordable to humanity at each point of the globe. Environmentalists are also happy to prefer solar energy to all technogenic methods, since this method does not cause any harm to nature, the environment. Although, there is an idea that excessive use and abuse of solar batteries can significantly change the albedo of the Earth.
Solar energy, like any method of obtaining electricity, also has a number of significant disadvantages:
It is cost -effective to introduce solar panels within a certain season on the territory of the average earthly latitudes, and in high latitudes they should not be used at all.
The full dependence of the amount of electricity and heat received on weather conditions and the time of day.
A significant cost of the main design and the need to acquire various expensive consumables.
