For large scale rooftop PV installations assessing the rooftop potential during initial feasibility studies can be obstructed due to rooftop services and this information could take days or even weeks to come in or even modelled.
For areas that have photogrammetric Google earth 3D information, this could be reconstructed using open source computer vision algorithms such as the Alice Vision framework used within Meshroom.
3D Model of the building in preparation of site analysis and PV feasibility studies.
Ladybug Daylight hours calculation
Meshroom preprocessing path
Point cloud generated in Meshroom
Camera Path generated in Meshroom
Final Rooftop PV analysis indicating suitable spaces to install PV arrays.