We begin to understand what energy is. We need energy to move and work. We need a healthy diet to get that energy. Plants convert sunlight and water into energy to grow. Moreover, we use the energy to travel from one place to another in a car or airplane, and it is this energy that we use to light and heat our homes. We use the energy stored in fuel when gasoline is used to power the car. The engine in the car is transformed fuel energy to work on the wheels to the car to move.
The energy we use every day is Earth's natural resources, and these resources can be classified into two categories, renewable and nonrenewable energy. It is the energy that we can use again and again, we call renewable energy for wood. We get more and more wood for the trees growing, the source is far from staying at present. But in regard to gasoline, the use has already begun to reverse, and the energy we get from the fuel is a nonrenewable energy.
Solar energy is being used to generate the electricity using photovoltaic eager, which converts the sun's rays to generate electricity. These cells are devices of photos, made silicon alloys, which produce electricity when sunlight falls on it. Suna's rays consist of photons, which contain varying degrees of energy and this energy corresponds to different wavelengths of the solar spectrum. When sunlight hits the cell, the photons fall into it or is absorbed, reflected, or pass through. It is absorbed photons that produces electricity. As the sun's rays impinge on the surface of the photovoltaic cell, electron takes place migration, and this creates a charge imbalance, which appears as a voltage potential at the output. A variety of PV cells you are used to produce sufficient electricity to light a small house. Sunlight is therefore a renewable energy source that could be used to provide power.
Installation India's total power capacity is a little over 124,000 MW and the coal is 60% based, with hydro at 25%, and the rest from gas and energy nuclear. Energy deficit was estimated at 11% of the total energy and 15% of the maximum capacity requirements. It is likely to increase. It recently announced that the country is facing a sudden shortage of 70,000 MW power, and a series of steps being taken by the Indian government to avoid a deficit. However, the power of the planning industry estimates that another 10,000 MW of capacity will be required by the country in the near future with the requirement of a MW more 10,000 in the next 10 years. There are environmental concerns about coal power plants based, related to its emissions of particulate matter or sulfur dioxide, nitrogen oxide, carbon dioxide, methane and other gases. As for the other alternative, hydroelectric plants can lead to degradation of soils, erosion, forest destruction, displacement of wildlife, and most important of all movements of human habitats. The Indian government has the use of renewable energy in its list of top priority to meet the anticipated shortfall.
Being a tropical and subtropical region, most part of the country experiences a sunny climate, over 250 to 300 days a year. This is comparable to the annual global radiation, which varies from 1600 to 2200 kWh / square meters, offering a potential energy equivalent to about 6,000 million GWh per year. According to the report maintained by the India Meteorological Department, the Rajasthan and Gujarat state receives the highest annual global radiation, and a large part of the land in the state of Rajasthan being barren and sparsely populated, has become in a suitable place for large central power plants using solar energy.
In the sunny state of Rajasthan, the Government of India is about completing a large power station due to hybrid systems. This fossil fuel / solar hybrid power plant is about to generate an enormous 140 megawatts electricity, of which 40 megawatts will be produced from a variety of solar parabolic trough. The technology, which is much more more cost effective than photovoltaic cells, using large parabolic mirrors to focus sunlight to heat a heating means such as, gas or steam, which in turn drives a turbine generator. The project cost runs to $ 1 million per megawatt and is still considered to be cheaper than the others.
In creating a solar thermal plant in Rajasthan state, there are some points to be tested, and these include:
– The operational viability of the technology used.
– Development of solar energy for an expected significant reduction in operating costs.
– To contribute effectively to clean energy, and help reduce greenhouse gases in the long run.
The operational viability of solar thermal power plant is expected to be demonstrated through commercial power sales and delivery agreements with the network. The technical development of the system is expected to be achieved through technical assistance and training. The power plant is a step forward to a long-term program to promote the goal focused on climate change.
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