webinar: Solar

Rule 21 Basics: What, Why, When, How?

The implementation of Rule 21 (or UL 1741-SA) is confusing. Join Casey Miller, VP Products, and John Drummond, Applications Engineering, for simplified answers to complex questions on this topic.

What is Rule 21? What are "smart inverters"? When will it be implemented and where? Why? And, most importantly, how can you prepare for this in California and other states?

top