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28-04-2017, 06:23 AM

saminar report on solar power generation docx

jaseela123d · 29-04-2017, 11:25 AM

Solar energy is the conversion of the energy of sunlight into electricity, either directly through photovoltaic (PV) energy, or indirectly through concentrated solar energy. Concentrated solar systems use lenses or mirrors and tracking systems to focus a large area of sunlight on a small beam. Photovoltaic cells convert light into an electric current using the photovoltaic effect.

The International Energy Agency projected in 2014 that under its "high renewable energy" scenario, by 2050, photovoltaic solar energy and concentrated solar energy would contribute about 16 and 11 percent, respectively, of the world's electricity consumption. electricity. Most of the solar installations would be in China and India.

Photovoltaic energy was initially used as a source of electricity for small and medium-sized applications, from the calculator powered by a single solar cell to remote homes powered by a photovoltaic system on the roof outside the grid. As the cost of solar electricity has declined, the number of photovoltaic solar systems connected to the grid has become millions and solar power plants are being built with hundreds of megawatts. Photovoltaic solar energy is rapidly becoming a low-carbon, low-carbon technology to harness renewable energy from the Sun. The largest photovoltaic power plant in the world is the 850 MW Longyangxia Dam Solar Park in Qinghai, China .

Solar power generation systems absorb sunlight and convert it into electricity that we can use. Every second, the sun sends about 42 billion kilocalories of energy to Earth. If we could convert 100% of this solar energy into electricity, we could create an annual energy value for the entire planet in a single hour. Solar energy is the most powerful of all renewable energy resources.

Earth's reserves of fossil fuels, such as oil and coal, may eventually run out. In addition, the burning of these fossil fuels creates emissions of carbon dioxide, which contribute to climate change.

In contrast, as long as the sun exists, we can harness its energy here on Earth; And because solar energy does not emit carbon dioxide, it is an effective solution for the depletion of natural resources and climate change, increasingly serious problems.

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