If implemented , the world will get to see a man made eco-system that will benefit the small nation.I wonder how they are going to tackle the problems of tsunami etc.

R.Santosh Kumar, Mangalore, INDIA

i think that this platforms cover the sea surface that is also important for the natural algae and sea organism, deserts would be better solution because they almost don't have life at all, if the moving of the sand would be better controlled and solar generators had shields in case of storms.

Vladimir, Zagreb, Croatia

The sea will become polluted with wastes from these platforms. Japan should start installing a cable to a neighbouring country with a large desert and start buying solar generated electricity from this neighbour. Its time to start using the sun baked deserts of the world and form JV projects.

Jim Wills, Brisbane, Australia

Of course we could do the obvious and talk about limiting worldwide population growth. Nah, that would be too truth to handle.

Jim, Carlsbad, USA

I hope the Japanese succeed in developing algae power or whatever, if it saves the planet. I can't help having visions however of someone doing the twister game and getting themselves tied up in knots as they try to wriggle out of their predicament.

keith bentham, wigan, uk

In 2002, the total solar energy absorbed by the earth in one hour was more than the energy used in one year. Reduce the demand for petroleum and many problems melt away. But early days; need to temper enthusiasm.

Andrew Milner, Karuizawa, Japan

If each rig produces 300MW per hour than it is deffined solution for the world at list for countries that has Sea coast. Fantastic we can go from dirt to eco!

Andris, Riga, Latvia

Mike, there are birds in the estuary and apparently they take precdence over everything else.
We stopped bieng a nation of doers about 100 years ago.

Richard, london, England

A generator that would only produce 300 megawatt hours of energy does not seem very good to me, but one that is capable of generating 300 megawatts of power is much more impressive.

Brian Rudge, Lechlade, UK

Well done to Japanese that invest and work in hard choices and new ideas, as always Japanese are in forefront of chaising new ideas

Lec Neli, London, UK

At least the Japanese are doing rather than talking. We could generate up to 15% of our power needs from a barrage across the Bristol channel. It has been talked over, objected to and talked some more yet nothing is done. 15% and a whole host of jobs, where are our decision makers?

mike gee, bournemouth, uk

Desperate measures to stop relying on energy from nuclear armed, religiously fanatical or near-fascist countries. Like most untried, massive projects, unlikely to work. At least they'll risk it, unlike the U.S. which seems to have no energy emergency plan, not even worldwide diversified biofuel.

Peter B, Vancouver, BC, Canada