2011 NABCEP Exam Preparation Homestudy Package

Hi Mike,

I'm Andy from Rep. of Panama, studying to be NABCEP PV designer installer certified. One of the most important tools is your "Understanding NEC Requirements for Solar PV Systems", by the way - very simple and specific. Drawings give you a clear understanding. Congratulations, knowledge expands when you share it, thank you.

Regards, Andy