Wind turbine installations using LIDAR

The airborne lidar technique is an essential tool for wind turbine installation studies. The advantages of LIDAR are the following:

• Direct 3D measurement with high accuracy
• Topography under forest cover or on difficult terrain
• Quick coverage of a large area
• Possibility to couple a medium format camera for orthophotography

A single survey generates the deliverables essential to your feasibility studies for one or more sites in an extremely short period of time:

• High precision DTM (Digital Terrain Model) in LAS or ASCII or GeoTIFF format
• High precision DSM (Digital Surface Model) in LAS or ASCII or GeoTIFF format
• Plan in dwg or dgn format with contour lines at 0.5m steps
• Orthophotography

The DTM (Digital Terrain Model) allows the following analysis:

• High-precision survey for installation studies in very hilly areas that are difficult to access by land-based topographic measurements (scrubland, high relief area, etc.)
• High-precision survey for work planning and in particular access studies for large gauge convoys (transport of the nacelle and blades)

The DSM (Digital Surface Model) allows the following analysis:

• Visual impact analysis of the wind farm (e.g. visibility and covisiblity). The DSM lidar allows to take into account the real mask generated by the vegetation (trees, forests)
• Aerodynamic and acoustic modelling
• Acoustic modelling by simulating the propagation of emitted sound to dwellings using topography