Jet is 1980's technology and it's already produced 16 megawatts from 200 cubic meters in 1997. http://www.ccfe.ac.uk/JET.aspx Compared to "the center of the sun, fusion power is estimated by model to be about 276.5 watts/m3" http://en.wikipedia.org/wiki/Solar_core

Which works out to 290x the energy density of the core. Direct comparisons of the Continent vessel vs the volume of the sun are even higher.