Electrical energy needed is drastically reduced if liquid propellants are avoided. Observing F-35 fighters & drones, we can clearly understand that the entire journey to space doesn't needs to be @ escape velocity. Only a 90 degree rotation is needed to move a mass from state of rest to state of motion. Once it spins, it insulated from gravity & becomes weightless. This is what Eric Laithwaite showed decades ago. Weightless means the effect of gravity is eliminated & the difference needs to be felt.