Thanks, I was looking for them but couldn't remember the name > From Riksgränsen on the national border to the Port of Narvik, the trains use only a fifth of t

Thanks, I was looking for them but couldn't remember the name > From Riksgränsen on the national border to the Port of Narvik, the trains use only a fifth of the power they regenerate. The regenerated energy is sufficient to power the empty trains back up to the national border.