Recent work has demonstrated the interesting dynamics possible when considering multicomponent vesicles. Up to now, the dynamics of two dimensional vesicles have been studied. In this work, the dynamics of fully three-dimensional, multicomponent vesicles in the presence of electric fields will be investigated. Building upon a volume and surface area conserving Navier-Stokes projection method, the appropriate forcing terms are derived from the energy of a multicomponent membrane. The evolution of the surface components is done via a conserving, surface Cahn-Hilliard model.