I'm putting this in the Gray area as I don't have a source I can link to. A close member of my family holds a high up position in the EU Energy
Efficiency Directive and this is one of the ideas presented to him from a group of scientists in a "Behind closed doors" talk.
The premesis is simple, put a 100-meter wide mirror in space and use it to reflect light from the sun to light up London all night long. It would be
constructed from 200 smaller pannels which would be constructed once in space. Think Ikea flatpack furniture. It would light up a 13 mile diameter
area from space with the intensity of up to 20x that of the moon.
This is not an unheard of concept either. The Russians successfully managed a 5km lit-up area in 1992 (I hate to use wiki, but):
And here's some science.
"Blinders" will be put on various points of the mirror to keep parks and other wildlife areas in the dark to preserve wildlife, and streetlights will
still be kept available as a back up incase the mirror was destroyed either by way of a natural disaster or by an enemy.
There are a few pros and cons to this.
Non-reliant on the powergrid so doesn't need to worry about blackouts.
Mirror can always be moved to help other areas and other countries during a blackout or disaster.
Military implications of being able to eliminate darkness anywwhere in the world.
Potential agricultural benefit of providing plants with 24/7 sunlight.
Improved solar panel efficiency
Very high initial cost
Damaged mirrors from space junk would be difficult to replace and methods to mitigate the risks from space junk are still in their infancy.
Application is limited (Although not removed entirely) on a cloudy day.
So what do you think? Is this a good idea? Would you support it if proposed? Are there any pitfalls or other cons you can see from such
edit on 8-2-2013 by sajuek because: (no reason given)
edit on 8-2-2013 by sajuek because: (no reason