I think it's very nice way to make energy because it's cheap, and ecological.
But maybe Japan don't wan't to introduce new kind of energy plant because Japan has put alot of money and labor to the nuclear power.
And also, Japanese nuclear power plant's technice is advanced. In Japan, there are a sientists who can make powerfull nuclear plants such as "monju". (although this power plant is not working because it had a accident.) Maybe Japan don't want to release this advantage.
