Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
One potential source for solar data is the NSRDB. You can find this data via maps.nrel.gov and by selecting the NSRDB Viewer. However it appears they only have data through 2014, and not up to minute data.
You can download hourly GHI data as well as several other weather values.
I believe the solar data is generated by running cloud cover satellite imagery through a model.
