It is always great to get refreshed on the technical aspect of this industry. The couse succeeds at that in a big way.
I've been learning from Sean White for about 6 years now. He's a really good teacher, and I would (and do) recommend his videos to anyone who wants to advance their knowledge in the solar field.
The HeatSprings course is one of the best! Sean White and Bill Brooks teach the correct information for passing the NABCEP exam!
Great job putting this course together. Lots of very good information that gives a very broad overview of solar. I will definitely use this class as a resource while I have access to it.
Sean's program is very informative and he makes learning allot of concepts and details fun.