[ExI] solar power tower

[Mike Dougherty]

On Sat, Jul 23, 2011 at 2:20 AM, Damien Broderick <thespike at satx.rr.com> wrote:
> <http://www.gizmag.com/enviromission-solar-tower-arizona-clean-energy-renewable/19287/>

> the air underneath it. Hot air wants to rise, so there's a central point for
> it to rush towards and escape; the tower in the middle. And there's a bunch
> of turbines at the base of the tower that generate electricity from that
> natural updraft.

If this works then I propose we build a tower over Washington DC.
Plenty of hot air there but I doubt the 60% efficiency has enough
output to reach payback for what Congress actually costs.