Want to build / buy a 30 TerraWatt hour annually 'system' 
covering an all up 800 km x 800 km land area - read on.

__________________

Floating Solar Chimney
Click "next" at top right of image for 30 or so image 
presentation.

        http://www.floatingsolarchimney.gr/description1.htm

PDF version

        http://www.floatingsolarchimney.gr/papers/description.pdf

Claims capital costs per kW of below or well below any 
alternatives.
10% of photovoltaics cost in 2005.

Solar powered but suggests plausible night time operation 
methods at reduced levels.

Claims mature high volume systems could produce Hydrogen at 
1.5c/kg [!!!!].

Basic principle demonstrated in Spanish pilot scale plant 
over some years BUT this variant uses a literally floating 
chimney.
A 1 to 3 km high 70 to 100 meter diameter chimney surrounded 
by a 3 to 6 km^2 collector would be an impressive sight, at 
least.

Efficiency depends on chimney height but in the 3%-5% range. 
Lower than many alternatives - which is accounted for in 
cost calculations.

Construction at a land area per year of 20,000 square 
kilometres is suggested (!)
30 year target at 330GW/yr added capacity suggested as 
600,000 km^2 land use giving 30 TerraWatt.hour energy 
annually - about 6x US usage from memory.

Think big :-).








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