I have a solar array on my roof. If I find my house in OSM, there’s a lightning bolt icon indicating there’s a solar array present. Not only that, but the exact layout of the panels in my roof is shown. I never submitted this info to anyone, Google Maps Satellite view doesn’t show them. I’m really curious where OSM got such detailed data.
Yes that is typically, because there a lot of mappers which are contributing to OpenStreetMap by aerial imagery. Thanks to you that you add stuff from places which you know by yourself. This is very valuable.