Talk:Stratospheric solar array
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Link to someone who has created similar idea for inflatable dish as a satellite communication rather than a parabolic reflector as I have suggested here. See 
Nick Harper suggestion ofdesign as alternative to fresnel lens to allow stirling engine to hang underneath individual parabolic shaped blimp. Stirling engine could act as counterweight and have pulley system to adjust angle of reflector towards sun.
An extension of the idea
The lower stratosphere (around 10-11km) is also the region of the jet streams. Flying airborne wind turbines have already been proposed for this altitude, so it would be a relatively simple matter to stick some photovoltaics onto the back of these. See http://www.skywindpower.com --Balatro 17:52, 6 July 2010 (CEST)