Determination of Reduction Energy in Warped Region in Alcubierre Warp Drive

A solution of general relativity is presented that describes an Alcubierre propulsion system in which it is possible to travel at superluminal speed while reducing the energy, by an arbitrary value. With a interesting idea for the Alcubierre warp drive spacetime,I have introduced in the Alcubierre equations a coefficient which is 1 inside and outside the warp bubble but possesses large values in the Alcubierre warped region thereby reducing effectively the negative energy density and negative energy requirements making the warp drive more "affordable"even at 1000 times light speed.