Retired Seattle Fire Department Capt. Chris Greene talks with HelioVolta co-founder James Nagel about the company’s 2026 white paper on photovoltaic rapid shutdown device fires in commercial and industrial rooftop systems.

Greene and Nagel discuss:
1. Why isn’t there a national requirement for mandatory training, certification or prescriptive trade expectations for photovoltaic installers?
2. Why are rapid shutdown devices not subject to required reinspections nationwide, and what steps could be taken to change this?