speech on topic non conventional sources of energy need of the hour
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Renewable Sources of Energy: Need of the Hour
Blue skies and green grass, we cannot have as long as we use excess of gas. The aftermath and fallout of the excessive use of fossil fuels has adversely affected man. As a consequence, the present condition of our environment is like a patient lying in critical condition in the ICU.
Renewable energy sources are the best bet in the scenario. And what can be a better renewable resource than the sun? In a country like India, if the abundant amount of sunlight available is harnessed properly it could mean an end to the energy crisis. It is the most abundant source of energy. The average global solar radiation is around 5 kilowatt hours (KWH) per square meter per day with the sunshine hours ranging between 2300-4300 per year. India is in the sunny belt of the world. The country receives solar energy equivalent to more than 5000 trillion KWH per year, which is far more than its total annual energy consumption. Besides, it is a renewable and clean energy source. Taking both environmental and economic cost, solar energy works cheaper than fossil fuel resources. Once we master techniques to harness solar energy, it can be a vital source of power on all planets.
Solar energy could be a viable source of power generation for the next 1000 crore years. There are many technologies available for conversion of solar energy into solar power. For instance, solar photovoltaic (SPV) technology, photo galvanic cells, solar steam generators (solar concentrating power), solar tower or solar chimney, radio micrometers and thermopile are some of them.
It is the most relevant and appropriate time to harness solar energy in areas, states, and regions in our country where hydro electrical power generation plants are not viable. Installation of solar-power generation plants in such areas won’t only solve the energy problems, but will also ensure cleaner and purer environment.
The best option in front of us at present to tackle the problems posed by fossil fuels is the option of using alternative sources of energy. With energy consumption being the buzzword in developing economies around the world, fears of an energy crisis looming ahead are not totally unfounded. The non-renewable nature of fossil fuels makes complete dependence on these for future energy needs a very dicey affair. Renewable energy sources are the best bet in the scenario. And what can be a better renewable resource than the sun? Besides, it is a renewable and clean energy source. Taking both environmental and economic cost, solar energy works cheaper than fossil fuel resources. Once we master techniques to harness solar energy, it can be a vital source of power on all planets.
Imagining a future where clean air is no longer a dream and our cities are not smog filled concrete jungles, could well become a reality in the coming years if the world begins to increasingly adopt the use of cleaner options like alternate-fuel vehicles. The rise in economic activity and the burgeoning population have led to a tremendous demand in the transport sector, especially in urban India. By 2020, India's urban population is expected to grow five fold to a staggering 200 million while pollution is expected to grow seven times. With this tremendous growth has emerged a very critical issue of keeping air and noise pollution in urban areas under control. If we can have three lakh electric vehicles (EVs) on the roads by 2020 including three wheelers, cars and scooters, we would have reduced pollution by 16 lakh metric tons, saved rupees 3700 crores in foreign exchange earnings and substantially reduced healthcare costs.
In conclusion it can be said that if we have to save our health and environment from the adverse effects of using fossil fuels, frugal consumption, and replacing the fossil fuels with alternative sources of energy are the two viable options. We must switch over to them as early as we can for a brighter, healthier and safer future!