Interesting story, and whilst I was happy to read of a new development for perceived energy problems, the end part "the electricity produced will be six times cheaper than current energy costs in Japan" makes me sceptical about the project..I would love to see cheaper energy, but the reality is that it will never happen!

IMO if this gets off the ground (which I doubt) it will be for pure business purposes, not for the problem solving it purports to achieve.

The general order of business:

1- Make people believe in a problem (real or fictional) -scarcity is the best problem to have in business.
2- Come up with a plan to fix said problem
3- Come up with considerable UPSIDE to enable public funding approval (usually under the guise of future dollar savings = great investment = funding approval)
4- Implement solution (to real or fictitious problem)
5- Ensure expenses outweigh revenue (run at losses) whilst in the 'gestation' period (by siphoning said promised savings to line pockets) = acceptance of normal sale prices
6- You have now effectively developed and implemented a new business venture

When you need to sell a story about scarcity and you make statements about magical huge $$savings$$ your story usually has some major flaws, or the motives are not as stated.