Accurate Shading Models through Drone-Based Mapping

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High-resolution drone surveys combined with photogrammetric evaluation enable the precise capture of 3D terrain and object data. Based on this data, site-specific shading models can be generated with high spatial accuracy. The models take into account both topographical features and relevant objects (e.g., buildings, tree lines, infrastructure).

These models allow for:

  • the accurate assessment of temporary and permanent shading effects on module rows or inverters,

  • the integration into simulation-based yield forecasts (e.g., using PVsyst, Helios 3D, or Rhino/Grasshopper),

  • the identification of potential energy losses due to shading at specific times of day or year (solar path analysis),

  • and the optimization of module layout and orientation during the planning or retrofit analysis phase.

Especially for ground-mounted PV systems with complex terrain profiles or heterogeneous boundary conditions(e.g., sloped areas, surrounding vegetation, overhead lines, or masts), drone-generated 3D models offer a significant improvement in accuracy compared to conventional planning documents or satellite-based assessments.