Gamesa is buying 15% in NEM from Spain's Tecnalia, one of its co-founders, and another 35% from Spanish rail company CAF, which will maintain another 50% stake in NEM.

The transaction is expected to close in the first quarter of 2016. "The investment in NEM alongside a partner of the calibre of CAF will accelerate Gamesa's access to advanced data management know-how in the predictive maintenance field, a powerful technology tool which is not as developed in the wind sector as in the rail industry," said David Mesonero, corporate development managing director of Gamesa.