How to Design and Install Grid-Tied Solar Systems

To complement the off-grid course I took last month, I spent all of last week in an intensive 40-hour solar photovoltaic design and installation workshop, focused primarily on how to design and install residential and commercial grid-connected solar pv systems. The course was designed to prepare students to sit for the NABCEP (North American Board of Certified Energy Practitioners) Entry Level Exam, which I took on the final day of the course. Through in-class demonstration and hands-on practice, I was able to learn the basics of pv system sizing and wiring; racking and mounting techniques; installing/connecting inverters, charge controllers, meters, and safety disconnects; ground fault protection; and battery sizing. It was great to finally learn some tech talk and get my hands dirty with an actual rooftop solar installation!

Like the off-grid course, the highlight of the week was getting to know the 28 individuals who traveled from across the country and world to do the workshop:

Manuel from Aruba, who plans to start a small solar business on his island community; Mario from Miami, who wants to add solar installation services to his clean tech company and expand its presence across the country; Oliver from Ecuador, who hopes to bring solar electricity to a local indigenous group; and finally Justin and Brian, two brothers from Oregon who are the first men in their family to defect from the logging industry to follow a new career path.

p.s. For my technically-inclined friends, the other highlight of the workshop was undoubtedly when I was the first in the class to calculate the AC power output of a polycrystalline solar module by multiplying STC wattage x irradiance factor x derate factors... all with a Grade 11 math education! If I could do it, anyone can.