Radars and wind turbines: in short, primary radars think wind turbines are aircraft. Primary radars are designed to detect moving targets – turbine blades move at equivalent speeds to aircraft, having similar / greater radar cross sections as aircraft. Current military and civil air traffic control (ATC) primary radars are 2-D so cannot distinguish the elevation of the target and therefore differentiate tracks.
Military air defence (AD) PSR are 3D so are less impacted – but concerns remain particularly at low altitudes. This has led to national security concerns over wind farm deployment.
Applies to All Rotating Radar
MOD objects to wind turbines in radar line of sight
This is the MOD radar challenge for UK offshore wind – what this maps says is that MOD is more likely than not to object to any wind turbine in the red zones – this is where most of the UK’s offshore wind capacity resides
The story so far in respect of MoD Air Defence Radar concerns