Yes, they are actually. http://www.engadget.com/2011/05/29/inhabitats-week-in-green-hydrogen-powered-space-plane-japans/ http://www.engadget.com/2011/05/29/inh

Yes, they are actually. http://www.engadget.com/2011/05/29/inhabitats-week-in-green-hydrogen-powered-space-plane-japans/ http://www.engadget.com/2011/05/29/inhabitats-week-in-green-... Speaking of solar power, Japan unveiled plans to construct 10 new solar power plants in the wake of the Fukushima Nuclear Crisis, while Switzerland announced that it will completely phase out the use of nuclear power.