With weather what it is, there seem to be few sites where huge wind farms can guarantee wind (tell me I've got this wrong); but if a grid of windwills was laid out along railway lines (motorways, canals, etc), snaking across Europe (and beyond), whither the wind blew would hit enough of 'em, no?....at times of reduced (train) activity power could be fed back into the grid.

A high speed international rail network run on nothing more offensive, polluting, or dangerous than windmills.

Don't fight forces, use them R. Buckminster Fuller.