I heard the ITER could achieve Q = 10, what about the engineering (actual) Q?

[zheng89120]

If the engineering Q is greater than 1.1 or so, does that mean the fusion problem has been theoretically solved?

 

[Drakkith]

If the engineering Q is greater than 1.1 or so, does that mean the fusion problem has been theoretically solved?

I believe so.

 

[zapperzero]

If the engineering Q is greater than 1.1 or so, does that mean the fusion problem has been theoretically solved?

The enormous investment alone should have told you that. No-one gets a blank check (15 billion dollars spent so far) just to play with magnets. ITER is as big a deal as the Fermi pile was in its day. Bigger, actually.

 

[Khashishi]

When fusion is working with net energy gain, it still needs to be able to compete economically. For that, we'll probably need a Q considerably greater than 1.1