kobuki <nls...@gmail.com> writes: > Yeah, thanks for the insight. I'm aware of the various atmospheric models. > I want to find something that has been a) proven useful for solar power > predictions; b) has a working open source python implementation. While the > scientific background is very interesting in itself, I don't intend to > re-invent the wheel. I do have a fairly good solar and UV sensor for my VP2 > weather station. An interesting fact, this spring the solar sensor W/m2 > curve almost completely overlaps with the built-in solar model prediction > (theoretical max. irradiation) in WeeWx, and we do have unobstructed clear > sky and sunshine these days. So I'm hoping to do something similar with my > solar power system.
I wasn't aware there was a solar model in weewx. I have on my todo list to compute the irradiance with a clear sky, and to graph measured irradiance vs theoretical max. I have seen irradiance values higher than what I believe theoretical max is. On a completely clear day, no, but on days with some clouds. My assumption -- with no good basis -- is that there is some sort of lensing as the sun passes the cloud edge and there is a temporary beyond-max excursion. This is part of why I want to graph the fraction-of-max. > I've found 2 worthy contenders in the subject so far: > > https://github.com/pvlib/pvlib-python/ > https://pypi.org/project/solprimer/ > > I need to indulge myself in them a bit to see which might fit my needs the > best. I think the first one might be better suited and it's also actively > developed, but I just don't know yet. Thanks for the links. -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
