E3/DC home battery storage system with LG module catches fire in Germany
2024Published 16 Sept 2026Responsible editor: Chief Editor
- Where
- basement of a house in Werne, Germany
- What
- fire in E3/DC S10E 6.5 home battery storage system
- Injuries
- None reported
- Response
- volunteer fire brigade cooled battery in 600 litre container
- Cause
- Under investigation
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Companies named in the reporting of this entry (being named is not a finding of fault): E3/DC, LG Energy Solution
What happened
A volunteer fire brigade was called to a fire described as suspicious in the basement of a house in Werne, Germany, involving a home battery storage system. Nobody was present at the scene. The unit was identified as an E3/DC S10E 6.5 home power plant, commissioned in 2019, containing a battery module made by LG Energy Solution. Firefighters found the enclosed 6 kWh battery difficult to extinguish because flames repeatedly re-ignited behind a sheet metal panel.
Thermal imaging showed the battery self-igniting whenever cooling was interrupted and the internal temperature rose again. In consultation with the installer, firefighters separated the DC connection, dismantled the wall-mounted battery, took it outside and cooled it further in a portable 600 litre container. The basement suffered fire damage and power lines were damaged, so technicians switched the house to the main security box, and the smoke damaged apartment and basement were ventilated after inspection. As a precaution, E3/DC said it would replace battery modules for 77 potentially affected customers while supporting LG Energy Solution in identifying possible causes.
Contributing factors
The fire brigade reported that the battery repeatedly self-ignited when cooling was interrupted and internal temperature rose again. Reports attributed the fire to an electrical fault with the home storage system, but authorities were still establishing the cause at the time of reporting.
Lessons learned
- Enclosed 6 kWh residential battery modules can self-ignite when cooling stops, so crews must maintain continuous cooling until the unit is removed.
- Traceability of battery module batches lets manufacturers replace units quickly for 77 customers when a fault is suspected.
- Contact with the installer during the incident allowed firefighters to separate the DC connection and move the unit safely.
More lessons on outages, backup supply and restoration, fire suppression and firefighting, from every incident on the register.
Not yet known
- Exact cause of the electrical fault
- Cost of damage and repairs
- Duration of power outage
This entry is updated when these are reported. Get an alert for the next one like it.
Source
Published 2026-09-16. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.
