Regenerative Breaking For Electric Trains To Recuperate Energy

Basically, Electric Trains (All of them, Only T2 or even a new version) would feed back (recuperate) Energy into the grid when braking. That would not only be realistic but also enable some very fun (and realistic) setups, like for example, bringing Ore down from a hill and generating a ton of power. (Also see Fortescue's Electric Ore Train in RL)

Definitely want to see this. Even Diesel-Electric trains often use regenerative braking (They do have an onboard battery, the diesel part of it is just a generator to recharge those batteries and power the electric motors attached to the wheels)