Feb 24, 2014

Clarifying Solar Energy

Scientists tell us that our sun is dying. It will, in time, run out of fuel, cool down and expand into a red giant. But as that is going to take approximately 5 billion years, we have plenty of time to enjoy the solar energy which it currently provides.

Another important role of the batteries is intended to provide a current higher than the photovoltaic device can deliver for some cases: This is the event of an engine which in the boot time can use a current of 4-6 times its rated current for a few seconds.

More Information On This Solar Energy Topic!

The sun is a great ball of atomic activity. This emits solar energy in the shape of light and heat. This energy travels through space to the planets providing us with daylight and warmth. It is an incredible free gift.


Man has always used solar energy as best he can. Early man learned how to utilize the sun’s heat for drying meat, fruit or fish to prevent them for later eating; the sun baked clay into bricks for building; animal skins were dried for clothing.

Digging Up Secrets About Solar Energy

Later, when man started living in houses, the value of solar energy for heat was much appreciated. There was always at least one room in any castle which faced south, had as big a window as could be done and was called the ‘solar’. It was one room where our ancestors could be warm, thanks to the sun.

Solar thermal is to use heat from solar radiation. It comes in different forms: thermodynamic solar power, cooling, solar cookers, dryers, and hot water and heating. Solar energy is a thermodynamic technique that uses solar energy to generate electricity.

Passive Solar Power: The oldest use of solar power is to benefit the direct input of solar radiation and is called passive solar Power.

For a building that benefits from good sunlight, it must take into consideration the solar energy in the architectural design: double facades, orientation towards the southern and glass surfaces, among others. The thermal insulation plays an important part to optimize the part of the available passive solar heating and lighting. A house or a building which will have passive solar energy contributing to a significant saving energy. Batteries, fans, lamps garden pumps. Today, almost everything can run on solar energy. Since many people carry in their bag a GPS equipped with a solar charger and solar photovoltaic panels on some roofs.

In more recent times, the term Solar energy has taken on a slightly different importance. Modern man uses energy in many forms and prolific quantities. Generally, this energy has been obtained from fossil fuels, such as coal, gas, or oil. These, we now realise, aren’t going to last forever.

Because we have become used to a high degree of energy usage, the thought of doing without is no longer acceptable. Alternative sources of energy are needed. Once again good old sun provides and solar energy is becoming pivotal to our future requirements.

The cost of solar energy is also high compared to non-renewable utility-supplied electricity. As energy shortages are becoming increasingly common, solar energy is becoming more price-competitive.

Solar energy is renewable, non-polluting, available everywhere, isn’t (yet) owned by anyone or any country and is free! It can be used directly to heat air and so provide heat to buildings; this works in the same way to greenhouses. Alternatively, the heat can be collected by solar panels and passed on to heat water for washing or central heating.

Light sensitive devices, called photovoltaic cells, can covert the light from the sun into electricity. They enable solar power to drive an increasing amount of equipment. Initially it was mainly pocket calculators, but now it powers radios, pumps, lights, even cars.

Electricity generated from solar energy can bring power to remote areas and, together with some kind of storage, such as a battery, can light houses or run farm machinery. It is very much cheaper to install than laying miles of electric cables and all the boosters that would be necessary to ensure a supply.

Some companies/authorities are using large arrays of photovoltaic cells to gather and convert solar energy to supply larger areas, on a bigger scale. Some installations are wide enough to provide power for a whole town.

The sun sends its solar energy to earth at a vast rate. It is absorbed by the land, oceans and atmosphere, but lots still gets through to us. It is felt that the sun provides as much solar energy in one hour as the world population uses in a year. This is one great gift and we should seek to use it well.

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