Re: Solar energy.... Japan launches study on space...

["Raymond A. Hoover" <rayhoover@HOTMAIL.COM>]

In the late 70's-early 80's there was a lot of talk about such "solar power 

satellites".  These were, I believe, for ~1 Megawatt systems.





>From: "Bjorn Cedervall" <bcradsafers@HOTMAIL.COM>

>Reply-To: "Bjorn Cedervall" <bcradsafers@HOTMAIL.COM>

>To: radsafe@list.vanderbilt.edu

>Subject: Solar energy.... Japan launches study on space...

>Date: Mon, 09 Jul 2001 10:48:40 -0000

>

>The text below dropped in via Sandy - can anyone confirm regarding the

>1-kilowatt capacity/satellite. It doesn't sound much (?) - 1 000 to 10 000

>MWe would have seemed more reasonable. I am also interested in this topic

>since a success could mean that we will put the Earth into focus of a

>"magnifying glass" (numerous satellites). Animals and other organisms may

>vanish in "both ends" (not enough with cold for high altitude or 

>(ant)arctic

>animals&plants, overheating of those which live in hot areas today). OK -

>this solar radiation idea is perhaps too off-topic so please send the

>"non-radiation" comments to me directly - rather than to the group.

>

>Bjorn Cedervall   bcradsafers@hotmail.com

>-----------------------------------------

>Japan launches study on space solar power as energy source

>

>TOKYO, July 3 (Kyodo) - The Ministry of Economy, Trade and Industry

>(METI) said Tuesday it has launched a two-year feasibility study on

>developing solar power in space as an alternative source of energy.

>

>The ministry aims to realize by 2040 a system of power generation

>using satellites that can send electricity to Earth by microwaves.

>

>Each satellite would have a 1-kilowatt capacity, equivalent to power

>generation by a nuclear plant, a ministry official said.

>

>The envisaged system will also be 10 times more efficient than solar

>power systems on Earth because of its indifference to sunlight and

>will emit no heat-trapping carbon dioxide, METI said.

><snip>

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