Re: [SFC] How to harvest solar power? Beam it down from space!
- Finally it was about time
On 5/30/08, derhexer@... <derhexer@...> wrote:
> URL to an interesting article from CNN
> I think this concept has been around for at least 40 years, but rising
> energy prices and environmental concerns are bringing it back.
> First few paragraph
> LONDON, England (CNN) -- Jyoti is the Hindi word for light. It's something
> Pranav Mehta has never had to live without. And he is lucky. Near where he
> lives in Gujarat, one of the most prosperous states in India, thousands of
> villages lack electricity or struggle with an intermittent supply at best.
> Massive solar satellites would beam power back to ground-based receivers on
> _more photos »_
> "We need to empower these villages, and for empowerment, energy is a must,"
> Mehta said. "Rural India is suffering a lot because of a lack of energy."
> By 2030, India's Planning Commission estimates that the country will have
> generate at least 700,000 megawatts of additional power to meet the demands
> of its expanding economy and growing population.
> Much of that electricity will come from coal-fired power plants, like the
> billion so-called ultra mega complex scheduled to be built south of Tunda
> Wand, a tiny village near the Gulf of Kutch, an inlet of the Arabian Sea on
> India's west coast. Dozens of other such projects are already or soon will
> under way.
> Yet Mehta has another solution for India's chronic electricity shortage,
> that does not involve power plants on the ground but instead massive
> sun-gathering satellites in geosynchronous orbits 22,000 miles in the sky.
> The satellites would electromagnetically beam gigawatts of solar energy
> to ground-based receivers, where it would then be converted to electricity
> and transferred to power grids. And because in high Earth orbit, satellites
> are unaffected by the earth's shadow virtually 365 days a year, the
> power plants could provide round-the-clock clean, renewable electricity.
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> "This will be kind of a leap frog action instead of just crawling," said
> Mehta, who is the director of India operations for Space Island Group, a
> California-based company working to develop solar satellites. "It is a
> American scientist Peter Glaser introduced the idea of space solar power in
> _NASA_ (http://topics.cnn.com/topics/nasa) and the United States
> _Department of Energy_ (
> http://topics.cnn.com/topics/u_s_department_of_energy) studied
> the concept throughout the 1970s, concluding that although the technology
> was feasible, the price of putting it all together and sending it to outer
> space was not.
> "The estimated cost of all of the infrastructure to build them in space was
> about $1 trillion," said John Mankins, a former NASA technologist and
> president of the Space Power Association. "It was an unimaginable amount of
> NASA revisited space solar power with a "Fresh Look" study in the mid-'90s
> but again found that even though the technology needed for the satellites
> become significantly cheaper and more advanced, the up-front costs were
> prohibitive, Mankins said. By 2002, the project was indefinitely shelved --
> or so it seemed.
> "The conditions are ripe for something to happen on space solar power,"
> Charles Miller, a director of the Space Frontier Foundation, a group
> promoting public access to space. "The environment is perfect for a new
> Skyrocketing oil prices, a heightened awareness of climate change and
> worries about natural resource depletion have recently prompted a renewed
> in beaming extraterrestrial energy back to Earth, Miller explained.
> And so has a 2007 report released by the _Pentagon_
> (http://topics.cnn.com/topics/the_pentagon) 's National Security Space
> Office, encouraging the U.S.
> government to spearhead the development of space power systems.
> "A single kilometer-wide band of geosynchronous Earth orbit experiences
> enough solar flux in one year to nearly equal the amount of energy
> within all known recoverable conventional oil reserves on Earth today," the
> report said."
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> [Non-text portions of this message have been removed]
ALEUS (The Avening Angel)
The Transmundial rules all
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