Tuesday, June 24, 2008

'Bijli' aur 'andhera'

Manmohan ki sarkar girte girte bach gayi….bachi Kya ?
Amrika se Nuclear energy chahiye…China ke dost lene nahi de rahe…beech mein phans gaya hai India.

India consumes about 588 Billion Kwh today, and is projected to consume 1216 Billion Kwh in the next fifteen years. Majority of power generated today is fueled by Coal that directly contributes to global warming. Our long term strategy of building Hydro electric plants is not paying off; a large number of these projects are stuck in legal quagmires and bad management of socio economic effects on the people displaced..(Ask Medha ji)…so what is in store for India, if the Chinese ‘dosts’ do not let the nuclear energy in,
…’andhera’ hi ‘andhera’ ???
Bhagwan ka hi hai sahara??
Google devta se pooccha ..mili ek company…ausra.


Ausra is a company that specializes in form of energy called solar thermal energy. Instead of using photo-voltaic cells, they reflect and concentrate the sun’s energy on a bunch of pipes carrying water. The water converts to steam and that is used to drive turbines….sounds exceedingly simple.


I think the difficult part may also have to do with storing this energy as heat energy to be used later for driving the turbines when the sun is not at its hottest.

Here is a link to how his works.

So here is the interesting part...a few papers on this website claim that an area about 145 km by 145 km covered with this technology can meet the electricity consumption needs of USA.

The Math

So USA consumes about 3.816 trillion Kwh. India about 588 Billion Kwh (about 15 % of USA)
so if 145 Km * 145 Km can meet USA electricity needs, we will need about 3239 sq km just using the same ratio.
i.e. about 57 km by 57 km like about the size of Goa, covered with mirrors can meet the electricity needs of the entire nation.

For all you feni fans out there, I know...Bad Idea...Goa is much too precious too cover with mirrors. but in a country as vast as India, could we find the wherewithal to even harness 10-20% of this energy from setting up plants say near a desert or places which are not as habitable, but we can finance or find a source of water.

We have done this already...
Solar cookers have been marketed in India since 1982. I remeber seeing the ads on Krishi darshan on good old doordarshan. For a lot of people in rural India it has been a good alternative to cooking fuel.
We even set up a solar cooker with help from the germans in Mount Abu, which could generate 500 kgs of steam and cook food for more than 1000 people at a temple.
Read more here

So even if we don't get all the nuclear energy, could we use what dinesh bestows us on everyday...?? I was even thinking since we are distilling lots of water, it could even be a source of clean water for say 50 homes...maybe not ...but that's just me trying to kill two birds with one stone.

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