Solar energy

For millions of years, the Sun is the leading provider of energy on Earth.

At Premium Electrical Solutions our qualified London electricians based in London can help you understand how the sun lights could be the next step to the future.

The Sun provides the Earth a higher amount of energy that the entire globe one consume in one year under the conditions of direct exposure, Earth’s atmosphere reach 1000 W/m2, compared to 1,350 W/sq in the stratosphere. in one year around the world reach 170 billion MW/h, i.e. 20,000 times the energy needed for the entire population of the globe. It is important to know that the solar energy that reaches Earth in a single day, about 0.5 billion MW/h global, can cover the energy needs of over 180 years old! Solar energy can be used through a multitude of natural or artificial processes: through photosynthesis performed by plants, which capture solar energy and use it to convert the chemical energy of carbon dioxide from the air and oxygen compounds of carbon stripped down; through direct heating; through the energy stored in petroleum and other fossil fuels in coming initially from all-solar energy (via photosynthesis in the distant past) and a couple of decades, through direct conversion made with panels and photovoltaic conversion indirect Sun using solar thermal panels.

The notion of “solar energy” refers to the energy that is produced directly by transferring the energy radiated by the Sun bright. It can be used to generate electricity and heat needed for various utilities, usually for cooling air inside buildings. Solar energy is free, clean, renewable, virtually inexhaustible, disperse and easy to produce. The most important drawback is that the energy provided by the Sun is not constant across the globe and, in addition, due to the difference between day night, sunlight can be used to generate electricity only for a limited time every day. On the other hand, solar energy does not present any disadvantage because of solar installations provide benefits from all points of view.

Solar energy is converted into electrical and thermal energy through photovoltaic panels and solar thermal panels. Solar panels mounted in European countries, on average, captures solar energy for 9 hours a day. In other areas of the world, such as African or Asian desert areas the average is much higher. In that time are exposed to solar radiation, solar installations it produce electricity and stores it in batteries to be used when the capture potential is low. Solar installations are of 2 types: photovoltaic and thermal. The photovoltaic produce electricity for free. The heat, help us save gas at a rate of 75% per annum. A home that has both solar plants (with photovoltaic panels and thermal panels) is considered “without invoices”, that is, with “positive” balance of energy because the energy accumulated day in batteries is sent in the power system at solar plant that is attuned.

Solar photovoltaic panels and solar thermal panels works even when the sky is cloudy. Also are robust, resistant to radiation and weathering, moisture, leading to attacks with electrical components. Solar systems do not consume any kind of fossil fuels; easily positioned and installed; are cheap, no danger of fire, explosion, etc. total clean, do not emit toxic, do not produce residues; coupled with a heating system that uses conventional energy, for continuity of operation, regardless of the weather, extended indirectly by taking equipment life system functions.

This type of “clean energy” free and environmentally friendly, can be used by humans for the production of electricity, production of hot sanitary water, heating or cooling large buildings, ground pools, for agricultural and industrial applications etc.

Through the 70s were often solar cells used to power personal computers and digital clocks. Solar cells are made from semiconductor materials, similar to those used in microprocessors. When light is absorbed by the semiconductor, solar energy is decomposed into atoms, and electrons flow to produce electricity. The process of converting light into energy is called the photovoltaic effect. There are different variants of technological solar photovoltaic panels. currently the most widespread model construction includes: glass (most times secure monolayer) on the face exposed to the Sun; a transparent layer of plastic (acetate ethylene blame or silicone rubber) in which solar cells are attached; Also allow a wide autonomy for the various mobile applications, such as computer systems and appliances, in rural areas lacking electricity, solar photovoltaic panels powering hydraulic pumps in a reliable and environmentally friendly, as well as telecommunications and lighting installations. Also can be used for refrigeration of medicines and food.