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You've probably heard from environmental groups that we must move to solar power as an energy source because it is free, there is an unlimited supply and is a clean source of energy because no by-products (compared with fossil fuels such as oil and gas that emit greenhouse gases the atmosphere when burned for power.) However, solar energy can be a reliable and practical source of electrical energy for real?

When we use the term solar power nowadays, it usually refers to man-made technologies that rely on the flow of light from our sun to produce electricity or mechanical energy. The pioneers of converting solar energy into usable forms of energy Mouchout Auguste Frank Shuman, Charles Tellier, and John Ericksson. But the real breakthrough was achieved in converting solar energy into pure electricity by the research team at Bell Laboratories when they created the solar cell. Other people were able to continue in this direction for solar cells have an efficiency of over 40% and their prices have fallen to no more than $ 3 per watt.

Solar Power Technology is classified as either solar, passive solar, solar direct or indirect solar energy. One way solar energy is used today is directly to heat water for households. Solar energy has an efficiency level of up to 86% when applied to the creation of hot water, so it is a very attractive option for countries with cold climate, where people struggle to survive without hot water. Another solar energy directly affects our lives is when solar cells are integrated into electronic devices such as calculators daily, or as a stable energy source for satellites orbiting Earth. Families now have solar panels installed on roofs so you can use sunlight to power his house. However, the demand for solar panels can be affected due to shortage of refined silicon supply.

The most effective solution for large scale use of solar energy for electricity generation needs is the construction of solar energy. Solar power plants in May and is the oldest type of concentrating solar thermal power plant or the new multi-megawatt photovoltaic systems. The first type, based on the concentration of solar thermal technology, mainly based on mirrors or lenses to direct sunlight in a much smaller area of focus. However, this type of solar power technology may be adverse when the sky is overcast and there is little sun Direct.

It is also interesting to note that solar energy can also be used today to light vehicles. The proof is the biannual World Solar Challenge in Australia, where solar cars developed by researchers from industry and universities have been able to reach speeds up to 100 km / h for the race. That is not bad, considering the speed limit for South Australia where the race takes place at 110 kilometers per hour.

A very practical solar energy to disinfect water supplies to become drinkable. Water can be disinfected, either by pasteurization disinfection solar water solar water. Solar water pasteurization based on the sun energy to make the process of pasteurization of work involving the use of retention hot water for a certain period of time so that temperatures remain within 60 degrees to 70 degrees Celsius range. Solar disinfection of water is less intensive use of solar energy, because water is first aerated by shaking in a container that is left to be exposed to direct sunlight.

Everyone Show these uses solar energy that ultimately solar energy can become a significant source of energy and not just for large companies but also the average man's home. All that is required is that people are able to provide technology and maintenance energy Solar to become a reliable and convenient power on a daily basis.

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