Battery storage fire at Koryo Steel plant in Yangsan, South Korea
Jan 2019Published 10 Sept 2026Responsible editor: Chief Editor
- Where
- Koryo Steel plant in Yangsan, South Gyeongsang Province, South Korea
- What
- Fire at energy storage system used for peak demand reduction
- Response
- Fire services responded; blaze extinguished around 11:16 a.m.
- Cause
- Not reported
- Outcome
- Operations would not be disrupted
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Companies named in the reporting of this entry (being named is not a finding of fault): Koryo Steel, LG Chem, LG CNS
What happened
A fire broke out at approximately 7:31 a.m. at the energy storage system (ESS) installed at the Koryo Steel plant in Yangsan, South Gyeongsang Province, South Korea. The ESS was used for peak demand reduction at the steel plant. Fire services responded and the blaze was extinguished around 11:16 a.m., more than four hours after ignition. According to the report, this was the third fire at this peak-shaving ESS installation, following earlier incidents in July and December of the previous year.
The battery was supplied by LG Chem, the power conditioning system by Destin Power, and installation was carried out by LG CNS. A company representative stated the plant did not rely entirely on the ESS and that operations would not be disrupted.
Contributing factors
The source does not state a confirmed root cause. It notes this was the third fire at the same ESS installation within roughly six months, suggesting a recurring or unresolved issue with the system.
Lessons learned
- An ESS for peak demand reduction at a steel plant can burn for over four hours, so operators should fit early detection and remote isolation.
- A third fire at the same peak-shaving ESS within six months shows a recurring fault, so the operator must complete root cause work before restart.
More lessons on detection and monitoring, from every incident on the register.
Not yet known
- Root cause of the fire
- Battery model and age
- Cost of the damage
- Duration of any downtime
This entry is updated when these are reported. Get an alert for the next one like it.
Source
Other entries that name Yangsan
Published 2026-09-10. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.
