Lidar — light detection and ranging technology that shoots a laser beam into the sky and measures wind flow by reading the way it “scatters” in the atmospheric particles — has enjoyed a rapid uptake at onshore projects in recent years in preference to old-school cup-anemometer set-ups.

Yet it is offshore, where installation of a conventional meteorological mast is a more expensive and technically complicated proposition (half of the cost of such $8m-25m installations is in the deployment) that Flidar units really shine, with their $1.65m-3.3m