Missing bypass diodes in solar modules create hidden fire risk, bypass standard tests

A manufacturing defect that removes bypass diodes from solar panels goes undetected by standard factory flash tests and field thermography, potentially creating fire hazards in operating installations.

First covered Jul 2, 2026 · 10:47 PM PT · 1 article · no longer in the live window

Coverage

45d PV Magazine Lost bypass diodes in solar modules pose hidden fire risk — The component defect remains invisible under standard factory flash tests and unshaded field thermography, creating an unexpected safety hazard for operating…

More coverage from around the web

intertekcea.com Lost Bypass Diodes in PV Modules: A Hidden Fire Risk — and How to Find It — Intertek CEA

autarc.energy Bypass diodes: Why they are essential for solar modules - autarc.energy

pv-magazine-usa.com Issues with bypass diodes – pv magazine USA

averroes.ai 15 Solar Panel Defects Explained (Types, Common Issues & Fixes)

osti.gov Failure Analysis of Field-Failed Bypass Diodes 1 2

Appeared in: 2026-07-03 (#6)

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