Panel hotspots and bypass diodes

Also known as Panel hotspot, Solar panel hotspot, Photovoltaic module hotspot, Bypass diode

Panel hotspots and bypass diodes are linked solar PV module terms for local cell overheating and the diode path that can limit shading-related heating and output loss.

Panel hotspots and bypass diodes are linked solar PV module terms. A panel hotspot is local overheating in part of a module, often associated with a shaded, mismatched or damaged cell area. A bypass diode is a component in the module cell-string circuit, usually in or near the junction box, that can give current an alternative path around a shaded or lower-current cell string.