[ghouse]

> Most of the energy used accelerating is recovered at the next stop, so the fast acceleration does not consume much energy.

Not "most," but a lot. From the article: > regenerative braking on the new trains is generating and sending back to the electric grid approximately 23% of the energy consumed by the system

[basiccalendar74]

it is 23% of total energy. if you consider only acceleration energy, it will be much larger percentage, probably 80% (as in electric cars).