We have an updated connection to the Urban Weather Generator (UWG) in the works right now, which morphs rural EPWs to account for urban heat island and that @josephyang improved for this thesis. So that can help address some of the limitations.
To clarify, selling the data itself or data products like EPWs isn’t permissible. But, if you are selling a service like energy modeling that happens to use EPW data derived from NOAA data, this should be ok. This is for the same reason that the Ladybug Tools AGPL license doesn’t apply to the images and PDFs that people make with Ladybug Tools but it can apply to Grasshopper scripts using Ladybug Tools. Or why Google doesn’t own the paper you wrote because you typed it in google docs, though they can exercise some IP over things like google doc extensions. There are limits to copyright when it is used to make new types of content.
All of Ladybug Tools is set up to run simulations and manage weather data in chunks of up to a year. Avoiding the multi-year case makes it much easier to perform certain operations on the data and, if people need to run multi-year studies, they can always run multiple simulations. But, other than that limitation, everything else can be used. AMY and extreme years are particularly helpful and finer timesteps than an hour can be used in several types of analyses.