Fri May 2026, Stephan Scherer

Is plug-in solar safe?

Yes—plug-in solar is safe when it uses a UL 1741–certified, grid-interactive microinverter and is installed as intended. The safety story is not “trust us.” It’s a combination of (1) hardware that automatically shuts down during outages (anti-islanding), (2) decades of safe inverter-based solar deployment, and (3) a clear contrast with portable gas/diesel generators, which have a documented history of dangerous backfeed when connected improperly. This ...