GE Renewable Energy and Future Wind have inked a deal to install the US power technology giant’s flagship Haliade-X 12MW offshore turbine prototype in the Dutch port city of Rotterdam this summer, moving the design a key step closer to commercial roll-out in 2021.

The agreement with Future Wind, a joint venture between the Netherlands’ Pondera Development and Sif, encompasses a five-year testing programme and a 15-year full-service operation and maintenance period.

The Haliade-X – designed to generate 67GWh of power a year using a 220-metre-diameter rotor turning a direct-drive and permanent-magnet-generator transmission system – will be set up at a “quasi-offshore” site on land for easy access during testing, to allow GE Renewable Energy to collect data needed to obtain a type certificate for the machine.