the spherical centers of Trade Federation battleships can take off
from Earth would imply 63 megajoules per kilogram meted out in a
relatively short time. If a Trade Federation sphere is roughly 500
meters in diameter with an overall bulk density between 0.5-2 T/m3,
then we may
estimate 2.06-8.25 exajoules to lift it into orbit.
Given that Trade Federation spheres appear to require somewhere around a minute to lift off into orbit, this gives us an effective power of 35-137 petawatts that can be directed towards the repulsorlift systems.