Underground EV fire in Shenzhen
A large fire that engulfed a BYD parking garage in Shenzhen has reignited concerns about EV safety in underground parking facilities. Social reports showed images of a massive blaze and prompted conversations about ventilation and fire‑suppression readiness in EV ramps. (x.com)
A fire tore through a multi-storey parking garage at BYD’s Shenzhen industrial park on April 14, and the company said no one was hurt. (straitstimes.com) The blaze broke out at about 2:48 a.m. in Maluan Subdistrict of Pingshan District, according to local fire authorities, and emergency crews from district and city levels were sent to the scene. Journalists on site reported that the fire was largely out by about 8:30 a.m., with trucks still spraying water and drones monitoring for flare-ups. (amazingshenzhen.com.cn) BYD said the structure was used only for test vehicles and scrapped vehicles, not customer cars or active production inventory. Reuters-reviewed videos showed flames running across a long section of the building and thick black smoke rising above the campus. (straitstimes.com) Local authorities and BYD moved quickly to say the fire was not caused by a battery defect. China Daily, citing preliminary findings from fire officials and the company, reported that investigators linked the blaze to improper external construction work and said there was no battery self-ignition. (chinadaily.com.cn) The safety debate around electric vehicles in parking structures did not start in Shenzhen. The National Fire Protection Association said in 2024 that recent garage fires involving electric vehicles, including one in South Korea that damaged hundreds of cars, had pushed regulators and building owners to revisit fire protection in parking structures. (nfpa.org) The basic problem in an underground garage is simple: heat and smoke have fewer ways out, and firefighters have fewer ways in. A 2025 paper in *Fire Technology* said underground car parks create added danger because smoke builds up in confined spaces with limited ventilation and exits, making detection, access and evacuation harder. (springer.com) Rules are already shifting in response. The National Fire Protection Association said the 2023 edition of its parking-structure standard now requires sprinkler systems in all parking structures, including open ones that had previously been exempt. (nfpa.org) Governments are also publishing interim guidance instead of waiting for a single global rulebook. Britain’s Office for Zero Emission Vehicles said in 2023 that covered car parks, including underground ones, present “exacerbated fire safety challenges” for electric vehicles and charging equipment. (publishing.service.gov.uk) In Shenzhen, the official line is narrower than the online panic: no casualties, no impact on customer vehicles, and a preliminary finding pointing to construction work rather than battery failure. That leaves the bigger argument where it already was before dawn on April 14 — in the design of enclosed garages, not just in the cars parked inside them. (chinadaily.com.cn)
