Solar Electric System: The Frontier of Sustainable power

In the last 100 years, electricity provided the means of providing the chance for the greatest growth and improvement Within the lives of human beings. New technologies and inventions on different electrical systems were and are being made with dependence on the power of electricity. As the growth of the world’s economies increases and also is the exponential increase on the demand for electricity, which in our time have become a commodity we can’t live without. Fossil fuels like coal and oil provided us with the necessary resource to produce our own electricity with the using of generators in power Vegetation. Since the recognition of these fossil fuels as unsustainable and dangerous to both life on earth and human beings, research moved towards the growth of safer and cleaner energy source. One of which is the utilization of solar electricity systems to harness the sun’s energy and generate electrical power for our needs.

Solar electric systems use indirect and direct strategies in harnessing the power of the sun. Direct methods use photovoltaics or commonly known as solar cells made from thin slices of crystalline gallium arsenide, silicon, or other semiconductor materials to convert solar radiation into electric. By connecting large numbers of these cells into panels, the cost of photovoltaic electric has been reduced to 20 to 30 cents per kilowatt-hour. This technology has long been used in providing electrical power to satellites that orbit the earth and to observing satellites Within the depths of space. Solar electric systems supply long term and sustainable power resource because of the non-existence of mechanical parts unlike in energize generating power Vegetation. Keep in mind, the efficiencies of these cells are relatively low and also dependent on the time of day and seasonal changes. Solar electricity systems need to convert the DC voltage into AC compatible supply in order to be used for commercial and home.

Indirect strategies make the most of the concentration of solar radiation to focus the energy to warm or boil certain liquids like water to energize turbines and finally produce electric. One common tactic is the use of a parabolic trough which consists of a linear parabolic reflector that concentrates solar power into a receiver installed on the focal line of the receiver. In the focal line of the receiver, tubing connected to the turbine is filled with liquid to absorb the heat generated by the concentration of the solar energy. Solar electricity systems such as this have higher efficiencies because the warm of the sun is directly utilized. Moreover, other technologies extend the efficiencies by utilizing solar energize towers and solar dishes.

We now have experienced the advantages of fossil fuels and realized its adverse consequences. Moving the trend towards the using of sustainable and cleaner energy is a must in guaranteeing the life on earth. Crops have harnessed the solar power even before now humans ever existed. Why can’t we duplicate its ability to take the energy from the sun when we are more intelligent beings? We must stop digging the ground and start looking up on the sky above. Solar electric systems supply the means in achieving this goal.

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