GE Renewable Energy hailed victory in the latest round of its globe-trotting patent battle with wind turbine rival Siemens Gamesa, after a UK court rejected an infringement claim brought by the latter over the giant Haliade-X machines to be used at Dogger Bank, the world’s largest offshore wind farm under construction.

Mr Justice Meade at the High Court in London today (Wednesday) found GE’s Haliade-X does not infringe a Siemens Gamesa patent covering use of bearings in the rotor hub to support larger turbine designs, declaring the patent itself “invalid”.