Friday, June 10, 2016

The sun could be the solution to droughts in India.

The Sun is a ball of hydrogen which has been around for about 4.6 billion years and is the source of life on earth. Surya Namaskar, or homage to the Sun, has been practiced in India for thousands of years. India has pressing reasons to harness the energy of the sun. We have 400 million people without reliable electricity supply, we have to reduce our energy bill, because we have to import most of our oil and gas, and reliance on fossil fuels is driving pollution to dangerous levels in many areas. The government is determined to increase production of solar power from 6.7 GW, or gigawatts, at present to 100 GW by 2022. The technology is still evolving and it will cost an estimated $140-160 billion, but it will also stimulate innovation and create new business opportunities. " We will see a rise of storage technologies, automation systems and a widespread industry as distributed rooftop solar projects take off. It will lead to the creation of a new ecosystem and support a vendor market for chemicals, glass and other materials used in solar manufacturing," said Santosh Kamath, of KPMG in India. As the world contemplates the arrival of peak oil and the terrifying prospect of irreversible global warming enormous amount of research is going on into how to harness the energy of the sun. There is research into bio-solar cells where bacteria are used to produce electricity, electricity from photosynthesis, electricity from light, floating houses, floating solar panels to override the scarcity of land, transmitting solar power without wires from space, power from energy harvesting trees, assured power by tracking the sun, boosting solar power by light sensitive nanoparticles and  concentrated photovoltaic cells. Sadly none of this research is taking place in India. India needs to manufacture solar panels and photovoltaic cells locally, which will save $42 billion and create 50,000 direct jobs and 125,000 indirect jobs by 2030. In January President Hollande of France laid the foundation stone of the International Solar Alliance, an alliance of 122 countries situated between the 2 Tropics, in Gurgaon in India. The government wants India to be at the center of global research on solar energy. With its vast population crammed into a small amount of space land acquisition is the biggest problem. Rajasthan has plenty of open land with sunlight throughout the year but Andhra, Telengana and Tamil Nadu are also building solar farms. If solar panels are built on the roof of every house we could generate a lot of electricity. In cities like Mumbai or Delhi most people live in flats so who pays to install the panels and who benefits from the electricity produced. The biggest problem with solar energy is that it is erratic, depending on the weather, so electricity suppliers are having to work on how to manage sudden surges or fading of power. We suffered from drought for 2 consecutive years. If we could produce unlimited cheap electricity from the sun we could desalinate sea water for all our needs. Homage to the sun will be truly deserved.

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