Do Solar Photovoltaic Modules Have to be UL Listed? Are There Other Certification Options?
Ok here were coming back to an issue that was brought up by us early on and we were trying to get different opinions on. That is UL listing or photovoltaic equipment being listed, at all.
It seems like everyone who purchases photovoltaic modules in the US is verifying whether the modules are UL listed.
What does that mean and where does the concern come from?
Well here is the latest of what we find.
The requirement really comes from the National Electric Code (NEC), but the requirement does not directly specify that the listing should be by UL (Underwriters Laboratories – a company).
The exact requirement states:
