The device, currently being piloted on a floating spar buoy at RWE Innogy’s Gywnt Y Mor wind farm off Wales, was judged to provide finance-grade data independent of comparisons with industry-standard, cup-anemometer-based met masts.

The ZephIR 300 measures wind characteristics from 10-200 metres (33-650 feet) from a unit’s location to flesh out wind regime studies during the development and operation of a wind farm.

“ZephIR