If you can run ITER for 20 minutes you've essentially proved the Tokamak concept is viable for commercial use.
replyNo you don't. Commercial use means it makes economical sense. When you have to spend more on maintainance (and recycling/dumping contaminated wall material amd somehow get the fuel) then you never can hope to make any profit.
replyA running ITER with positive energy output for 20 minutes just proofs that the concept can actually work. From there to commercial use would still be a long way, if it ever can compete at all, except in niches, like deep space.
(I rather would bet on the Stelleratar design)
I'm not saying ITER would be a commercial machine, I'm saying the Tokamak design would be viable.
replyStellarators are interesting, but have been studied much less in comparison.
Nah, it's huge, you just have to remember the best result so far: the JET DTE-3 record that produced the energy to boil 60 tea kettles in a whopping 5 seconds pulse.
replyI know, the fact that "consecutive" is actually significant in this context is part of the joke. Just try to read it from the perspective of someone that isn't steeped in the details (and expectations) of the slog of fusion. Relative to any kind of aspirational "flying cars" or "wacky ideas" future predictions, it sounds very underwhelming.
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