Climate-driven wildfires destroyed a utility worth tens of billions: the first climate change bankruptcy.
PG&E, California’s largest utility, filed for bankruptcy in 2019 after climate-driven wildfires caused by its equipment triggered up to $30 billion in liabilities. Described as the first climate change bankruptcy, it remains the starkest demonstration that physical climate risk can destroy a company’s capital structure.
PG&E’s bankruptcy raises a systemic question: should a single utility bear the financial cost of climate-driven disasters it did not cause? California’s inverse condemnation doctrine holds utilities strictly liable for wildfire damage, regardless of fault. Critics argue this framework was designed for a different climate, one where wildfires were occasional and manageable, not annual and catastrophic. Holding a utility responsible for damage driven by global temperature rise creates an unsustainable liability model.
Defenders of the doctrine counter that someone must bear the cost, and the entity whose equipment ignited the fire is the most logical candidate. If utilities cannot be held liable, the cost falls entirely on homeowners, insurers, and taxpayers, none of whom chose to defer infrastructure maintenance or operate ageing equipment in increasingly dangerous conditions. PG&E had a documented history of underinvestment in safety.
The deeper debate is about disclosure and foresight. PG&E’s investors were caught off-guard because neither the company nor the market had adequately modelled catastrophic wildfire exposure. The case is now used to argue for mandatory physical risk disclosure, but it also raises the question of whether disclosure alone is sufficient, or whether some climate risks are simply too large and too fast-moving for markets to price correctly.
California’s doctrine of inverse condemnation means utilities are strictly liable for damage caused by their equipment, regardless of whether they maintained it reasonably. If a power line starts a fire, the utility pays, even without proof of negligence. As climate change extends wildfire season, this legal doctrine turned a physical risk into an existential financial one.