Not Norwegian here, but here's a map: https://en.wikipedia.org/wiki/Rail_transport_in_Norway#/media/File:Norwegian_railway_lines_electrified.svg https://en.wiki

Not Norwegian here, but here's a map: https://en.wikipedia.org/wiki/Rail_transport_in_Norway#/media/File:Norwegian_railway_lines_electrified.svg https://en.wikipedia.org/wiki/Rail_transport_in_Norway#/medi... ...and the answer is: mostly in the North.