Battery storage suspected in a basement fire in Worms, Germany
Aug 2025Published 28 Sept 2026Responsible editor: Chief Editor
- Where
- Basement of a house in Pfeddersheim district, Worms, Germany
- What
- Fire in lithium-ion battery storage unit for rooftop photovoltaic system
- Injuries
- None reported
- Response
- About 50 firefighters flooded basement with foam
- Cause
- Under investigation
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What happened
On a Saturday, a fire broke out in the basement of a house in the Pfeddersheim district of Worms, Germany. A lithium-ion battery storage unit used to store power from a rooftop photovoltaic system was in the basement where the fire started. A 50-person crew faced high temperatures and heavy smoke and flooded the basement with foam to reach the fire. The battery unit kept reigniting. After the fire was out, the fire service reported that the affected battery pack appeared to have burst, which let water in and cooled it.
Residents were told to keep doors and windows shut because of smoke. A short circuit in the house led emergency services to cut power to the street as a precaution. Nobody was injured. The house was reported uninhabitable because toxic substances had spread to the top floor, and the residents were given temporary housing. The cause remains under police investigation.
Contributing factors
A city spokesperson said it was possible a battery block ignited, perhaps from an external heat source. Another electrical appliance stored in the basement could also have caused the fire. The manufacturer has not been identified publicly, and the exact cause is still under investigation.
Lessons learned
- Treat a home battery in the room where a fire starts as a possible source until the investigation is finished, and do not treat suspicion as a confirmed cause.
- Plan for repeated reignition and difficult basement access when a lithium-ion storage unit is involved.
- Smoke and contamination from a basement fire can make a whole house uninhabitable and force temporary rehousing even when nobody is injured.
More lessons on investigation and fleet-wide checks, emergency response and public communication, from every incident on the register.
Not yet known
- Battery storage model and age
- Cost of damage and repairs
- Duration of power outage to the street
This entry is updated when these are reported. Get an alert for the next one like it.
Source
Published 2026-09-28. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.
