It wasn't stated in this video, but muons can be useful for fusion reactions. If enough can be made at a low enough energy cost, you just might get to break even or better for fusion energy production.
I'm looking for a way that may have been found to produce muons in quantity, which would appear to be necessary for energy production via muon catalyzed fusion. Perhaps Stephen Horvath has found a way to do that.
As of 2011, no practical method of producing energy through this means has been published, although some discoveries using "hall effect" show promise
If a collider were used, how much energy for each particle? I wonder if some other means of fusion which is not at break even can be used in order to obtain a relatively low cost source of alpha particles.