Yup. Most of the energy actually goes into building up kinetic energy to be able to circle around at tremendous speeds. Lifting the thing up to that level only

Yup. Most of the energy actually goes into building up kinetic energy to be able to circle around at tremendous speeds. Lifting the thing up to that level only takes a tiny fraction of the total energy budget. Blue Origin can only climb up, then fall down - for now. But who knows what they are working on.