Joining with the might of Mitsubishi was clearly a game-changer for Vestas, but to a unit of one of Japan’s biggest corporations the alliance was smaller fry.

MHI’s Power Systems segment as a whole accounted for 35% of its 2.8 trillion yen ($28bn)  of sales in 2012, with wind comprising a very small portion of the unit’s activities.

And Mitsubishi’s earlier forays into wind have not been the happiest, mainly because of the bruising legal battle over patents with GE that have afflicted its efforts to become a player in the US onshore market.

Despite