Inverter fire at Londrina condominium home damages residential solar system
2025Published 7 Nov 2026Responsible editor: Chief Editor
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What happened
A small fire broke out at a home in a condominium in Londrina, Paraná, Brazil, after flames reached part of the solar energy system installed at the residence. Images shared on social media showed flames consuming a photovoltaic inverter at the property. A resident noticed smoke while hanging laundry outside and went inside to bring family members, a nanny and pets out. Neighbours and the building's security team used fire extinguishers until the Fire Department arrived, and the fire was quickly brought under control.
The source says the rapid response prevented the incident from escalating. The source does not report any injuries. The causes of the incident are still under investigation.
Contributing factors
The cause has not been established and is under investigation. An engineer quoted in the article said that most solar fire incidents are generally linked to connection failures that create hotspots, but the article does not link this finding to this incident.
Lessons learned
- Periodic thermographic and visual inspections, and retightening of all connections, especially direct current connections, can identify hotspots before they cause fire.
- Owners of residential solar systems should receive clear guidance on maintenance and its cost.
- On multi-occupancy sites, the article credits neighbours and security staff using extinguishers with keeping the fire small before the fire service arrived, so accessible extinguishers and staff trained to use them can limit early spread.
More lessons on electrical protection and isolation, maintenance, inspection and ageing assets, theft, arson and site security, from every incident on the register.
Source
Published 2026-11-07. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.
