Science

What is solar energy? »Its definition and meaning

Anonim

The energy solar, used since time immemorial by humans, is a renewable energy source provided by the nearby biggest star to the Earth. The electromagnetic rays emanating from the sun are capable of providing enough power for appliances that use electricity to operate for a certain period of time. To take advantage of this, various high-tech objects have been developed that would make obtaining them much easier; for example, large glass panels are responsible for collecting solar energy, which will then be distributed and stored, so that it can be used at night.

The growing need to take care of the environment has provided a welcome reception to this new solution. With the use of solar energy, the emission of polluting gases by electricity companies or the pollution and waste of water by hydroelectric companies is being avoided. The support provided by the governments of important territories has been crucial for the adoption of this new form of electricity production. The reduction of the budget invested by large companies and ecological movements to help reduce the processed fuel industry, is another advantage that renewable energy brings.

The cost of using renewable energy sources, due to their different nature, used to be very high, since primitive tools were just being developed to obtain the product. Without However, with the passage of time and technological progress, s or price it is not so high and even competes with the field of non - renewable substances.

As far as solar energy is concerned, it can be used in many ways and is classified as follows: passive, taking advantage of sunlight without any machine involved; active, it is obtained through panels and is usually used in the home; thermal, with it the water is heated, for heating or cleaning activities; photovoltaic, with which electricity is produced, by means of large plates containing photoconductors; concentrating thermosolar, whose purpose is to generate electricity with the help of oils; wind-solar, which appears with air heated by the sun; finally, hybrid solar energy, which combines two different types of energy.