Space-Based Solar Cells Could Power Entire Earth

Posted: December 16, 2007 in Green Power
Tags: , , , , , , , ,

This is the ultimate green power solution.

From the first article:

Gigantic satellites orbiting the Earth, equipped with solar cells, could collect enough energy from the sun every year to power the world seven times over. Beaming the energy down to Earth in the form of microwaves or a laser, the satellites would provide energy which would be gathered in antennas on the ground and then converted to electricity.

Isn´t that just fantastic by it self? 😀

But thats not all.

Second article:

In a development that brings space-based power generation systems a step closer to reality, researchers from the Japan Aerospace Exploration Agency (JAXA) and the Osaka University Institute of Laser Engineering have developed groundbreaking new technology for converting sunlight into laser beams.

Relying on plates made from a special ceramic material containing chromium (which absorbs the sunlight) and neodymium (which efficiently converts sunlight to laser light), the newly developed lasers demonstrated an impressive 42% solar-to-laser energy conversion efficiency, outperforming previous technology by a factor of four.

The researchers say the new laser technology will play a key role in JAXA’s “Space Solar Power Systems” (SSPS) project, which aims to put space-based power systems in orbit by the year 2030. By mounting the system on a satellite in stationary orbit 36,000 km (22,400 mi.) above the equator, sunlight would be collected and converted into a powerful laser beam, which would then be aimed at a terrestrial power station and used to generate electricity or produce hydrogen.

SOL, Satellite Orbital Laser — Unlike earthbound solar power stations, which are subject to night-time darkness and cloudy conditions, JAXA’s SSPS will be able to make use of solar energy 24 hours a day. With slight improvements in the solar-to-laser conversion efficiency and by incorporating solar collectors measuring 100 to 200 meters long, a single satellite will be able to match the output of a 1-gigawatt nuclear power plant, the researchers say.

Now let´s say we combine the two into one unite and presto!

We never have to worry about energy ever again, everyone in the world will have free clean energy…. But since everyone is so caught up by the Terrorist scare.. I guess it will never happen, too bad…

First article. (Alot more info here)

Second article.

WOG out.

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