Re: scaling up is the answer?
ITER was never intended to produce a surplus, it's just another step on the road to working out the bugs in order that the next iteration will be more likely to do so.
THEY WERE SUPPOSED TO HAVE A WORKING PROTOTYPE BY 2014 that would "survive" mere seconds .... not ANYWHERE NEAR that yet.
The worst is, these guyz are the top boffins when it comes to fusion, they banked their professional life on it, and they have hurdles in the physics, that are way beyond their imagination, Ok, and political ones, too - Massive project with lazy arrogant civil servants....
Again, if you have a precise question, I will forward and get the answer ... on here.