the solar wind carries a Pos charge, it is well known and it is high.

the wind could not be considered an electric current, since it is not electrons giving off an inductive field, but is instead a large current of positively ionized atoms and ionizing radiation, from uv. to protons and anti-electrons(positrons).
there maybe electrons and nuetrons, but the overall charge is POS, thus a lack of electrons generally.
so.. it may be considered a current of positive ions, but since it doesnt follow any specifc path, it would seem.. "wind", is the best word.
-MT