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WindEnergy 2014: Winergy hybrid drive available in 2015

GERMANY: Winergy is planning to release its 3MW hybrid drive gearbox, using new bearing technology, by the end of 2015, its technologies manager Thomas Meyer told Windpower TV.

Speaking at the WindEnergy Hamburg event in Germany, Meyer said the gearbox would use journal (plain) bearings for the first time.

"The typical benefits of a journal bearing is that we need less design space and the flexibility of integration is much higher," he said.

Meyer explained a 2MW prototype has been operating in a Vestas V90 turbine in Sweden since March 2013. He expects two further prototypes to also begin testing this year.

"We are at the stage we can deliver the hybrid drive with the new bearing technology at the end of 2015. In the past we had a lot of experience on heavy duty applications like mining, milling and other such heavy loaded gearboxes.

"We expect the reliability to increase by using journal bearings in our wind gearboxes because of our experiences in the heavy duty industry," said Meyer.

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