SAO PAULO (Reuters) – Siemens Gamesa has begun installing a new generation of machines for onshore wind power in Brazil, Felipe Ferres, the company’s general director in the country told Reuters on Monday. Brazil will be the first country in the world to operate Siemens Gamesa wind turbines with 6.2 megawatts (MW) of power and a 170-meter (558-ft) rotor, the largest available in the world, in onshore wind generation. The model grabbed the attention from large wind power investors – since it optimizes wind farms by making them more powerful with fewer machines – and, in the future, could even b…