well it was exagerated slightly im well aware that we cant produce that much energy, but it isnt that it creates that much energy, its the sheer amount of energy contained within. those particles each contain a TON of energy.
Speed magnifies mass as you approach C then relase it by ramming em together. Yeah... These are the guys who used to put their toy trains on the same track just to see which one got knocked off. Nice experiment, I hope they find some usefull stuff.