Otis Singleton
Electric vehicles are becoming increasingly popular, but are firefighters equipped to fight the fires that these vehicles can cause? Electric vehicle fires have been a challenge for firefighters, as they can be time-consuming and difficult to extinguish. Electric cars rely on lithium-ion batteries, which can store a large amount of energy and can cause long-burning fires when involved in accidents. Firefighters have reported challenges in fully extinguishing these fires, with some vehicles reigniting even after being towed away. While electric vehicles are less likely to catch fire than gas or hybrid cars, the increase in their use highlights the need for improved firefighter safety protocols and training. This issue has sparked safety concerns and calls for safety reforms to ensure firefighters are prepared to handle these types of fires effectively.
| Characteristics | Values |
|---|---|
| Preparedness | Firefighters are not fully equipped to deal with electric vehicle fires. |
| Training | Most firefighters are not adequately trained in the key differences between putting out fires in gas and electric cars. |
| Safety | Electric vehicle fires pose a significant safety risk to firefighters and victims. |
| Challenges | Electric vehicle fires can be extremely challenging and time-consuming to put out. |
| Water Usage | Electric vehicle fires require a large volume of water to extinguish, often several thousand gallons. |
| Hazards | Electric vehicles can generate electric shocks of 600 or more volts and contain materials that can off-gas cyanide, carcinogens, and hazardous materials. |
| Lithium-ion Batteries | Electric vehicles use lithium-ion batteries, which can store a large amount of energy in a small space and can overheat, catch fire, or explode. |
| Safety Regulations | There is a lack of U.S. safety regulations to prepare firefighters to handle electric vehicle fires safely. |
| Alternative Approaches | Some European counterparts use a converted shipping container or dumpster to contain the fire, while Tesla recommends using lots of water. |
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What You'll Learn
- Electric vehicles are less likely to catch fire than gas or hybrid vehicles
- Lithium-ion batteries can overheat, catch fire or explode
- Firefighters need to identify the type of vehicle involved
- Firefighters are not adequately trained to deal with electric vehicle fires
- Safety reform is needed to protect emergency responders
Electric vehicles are less likely to catch fire than gas or hybrid vehicles
Electric vehicles (EVs) are less likely to catch fire than gas or hybrid vehicles. This is because they do not have an engine or accompanying mechanical systems, which are the leading cause of vehicle fires. According to the National Fire Protection Association (NFPA), mechanical failure or malfunction accounts for 45% of all vehicle fires, while electrical problems come in second at 23%. Therefore, the absence of gasoline, hot exhaust, and controlled explosions in EVs significantly reduces the potential sources of a fire.
In fact, older cars are far more likely to catch fire than newer ones, and the risk increases as a car ages. Data from the National Transportation Safety Board in the US supports this, showing that EVs were involved in approximately 25 fires per 100,000 sold, while 1,530 gasoline-powered vehicles and 3,475 hybrid vehicles were involved in fires per 100,000 sold. This means that EVs are about 61 times less likely to catch fire than gasoline-powered cars and about 139 times less likely than hybrids.
Similar findings have been reported in other countries. In Norway, the Directorate for Social Security and Emergency Preparedness found that there are between four and five times more fires in petrol and diesel cars than in EVs. The Swedish Civil Contingencies Agency reported 68 fires per 100,000 cars of all types but only 3.8 fires per 100,000 EVs or hybrids. Australia's Department of Defence research concluded that there was a 0.0012% chance of an EV battery catching fire, compared to a 0.1% chance for internal combustion engine cars.
Despite the lower risk of fires in EVs, there have been some highly publicized incidents involving electric cars, such as the Tesla Model S crash in 2021 that resulted in two fatalities and a challenging fire for firefighters to extinguish. These incidents have brought attention to the fact that most firefighters are not adequately trained in handling electric vehicle fires, which can be more challenging to put out due to the large lithium-ion batteries that power these vehicles.
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Lithium-ion batteries can overheat, catch fire or explode
Electric vehicles (EVs) are powered by lithium-ion batteries, similar to those found in cellphones or computers. However, unlike these smaller batteries, the large batteries in electric vehicles, such as the Tesla Model X, contain enough energy to power an average American home for more than two days. These lithium-ion batteries can store a large amount of energy in a very small space and are designed for specific uses.
Lithium-ion batteries can overheat, catch fire, or explode due to a phenomenon called thermal runaway. This occurs when the battery experiences a rapid increase in temperature, leading to the release of energy and potentially causing a catastrophic failure. Several factors can contribute to thermal runaway in lithium-ion batteries:
- Overcharging: This is the second biggest cause of fires in lithium-ion batteries. When a battery is overcharged, it can lead to a rapid increase in temperature, triggering thermal runaway.
- Charging too fast or discharging too fast: Charging or discharging a lithium-ion battery too quickly can place excessive stress on the battery, potentially leading to overheating and thermal runaway.
- Recharging after deep discharge: Recharging a lithium-ion battery after it has been completely discharged can increase the risk of thermal runaway.
- Exposure to high temperatures or direct sunlight: Lithium-ion batteries are sensitive to temperature extremes. Exposure to high temperatures or direct sunlight can cause the battery to overheat and potentially trigger thermal runaway.
- Damage or puncture: Physical damage to a lithium-ion battery, such as a puncture, can lead to overheating and an increased risk of fire or explosion.
- Manufacturing defects: In some cases, manufacturer defects, such as the use of cheap materials and poor quality assurance, can introduce impurities or foreign particles inside the battery. These contaminants can create short circuits and increase the likelihood of thermal runaway.
The potential for lithium-ion batteries to overheat, catch fire, or explode poses significant challenges for firefighters. In the context of electric vehicles, fires can be particularly challenging to extinguish completely. Firefighters have reported instances where they believed a fire was extinguished, only for it to reignite shortly after. This is because lithium-ion batteries can continue to generate heat internally even after the external signs of fire have been suppressed. As a result, firefighters often need to flow large amounts of water onto the batteries to prevent the fire from flaring up again.
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Firefighters need to identify the type of vehicle involved
Firstly, it is important to identify whether the vehicle uses an alternative fuel or an electrified battery pack. Most manufacturers place an emblem on the trunk and sides to indicate if the vehicle is powered by fuel other than gasoline. However, finding these emblems in low-light conditions can be challenging. To aid in this process, firefighters can use thermal imaging cameras to perform a 360-degree size-up of the vehicle. These cameras can help identify hot spots, burning batteries, or other potential hazards.
Once the vehicle type is identified, firefighters can establish an appropriate incident command structure. This includes designating roles such as an incident commander, safety officer, and accountability officer. These individuals should have a comprehensive view of the scene to monitor any critical changes in conditions. Establishing tactical priorities, such as fire suppression, extrication, and victim care, becomes easier with a clear understanding of the vehicle type.
Identifying the vehicle type also helps firefighters determine the required resources, especially regarding water supply and volume. Electric vehicle fires often require significantly more water than typical car fires. Securing a large, continuous, and sustainable water supply, such as multiple fire hydrants or water tenders, is crucial for effectively combating electric vehicle fires. Additionally, specific fire lines, such as master streams or multiple 1¾-inch lines, may be necessary to suppress and cool the fire and the battery effectively.
Moreover, recognizing the vehicle type enables firefighters to anticipate potential hazards and safety risks. For example, electric and hybrid vehicles can generate electric shocks, endangering firefighters working on the scene. By identifying the vehicle as electric or hybrid, firefighters can take extra precautions to avoid electric shocks and protect themselves accordingly.
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Firefighters are not adequately trained to deal with electric vehicle fires
The unique characteristics of electric vehicle fires pose significant risks to both victims and firefighters. In the event of a crash, electric vehicles can reignite multiple times, even after being extinguished, due to the high-voltage battery packs. This creates a prolonged and unpredictable fire situation that requires a different approach from traditional gas-powered vehicle fires.
While some fire departments have access to thermal imaging cameras and other specialized equipment, many firefighters across the United States lack the necessary training and resources to effectively handle electric vehicle fires. According to reports, about half of all U.S. fire departments are unprepared to manage electric vehicle fires, and around one-third have no specific training for electric or hybrid vehicle fires. This lack of preparation can lead to safety risks and delays in emergency response.
To address this issue, there is a growing emphasis on improving firefighter safety protocols and training programs. Firefighters need to be equipped with the knowledge and skills to identify electric vehicles, establish appropriate incident command structures, and implement effective tactical priorities. Additionally, they must be aware of the potential hazards, such as electric shocks from damaged batteries and the release of toxic substances during fires.
Some European counterparts have developed alternative methods for containing electric vehicle fires, such as placing the burning vehicle in a converted shipping container or dumpster to prevent further harm. However, it is crucial that comprehensive safety regulations and training programs are implemented to ensure that firefighters are well-prepared to handle the unique challenges posed by electric vehicle fires.
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Safety reform is needed to protect emergency responders
Electric vehicles (EVs) are becoming increasingly popular, with the number of registered electric vehicles in the United States reaching a record market share of 1.8% in 2021 and expected to rise to 10% by 2025. However, electric vehicles pose unique challenges to firefighters due to their lithium-ion batteries, which can store a large amount of energy in a small space and are prone to overheating, catching fire, or exploding. As a result, electric vehicle fires can be extremely challenging and time-consuming to extinguish, requiring significantly more water than a typical car fire.
While electric vehicles are less likely to catch fire than gas or hybrid vehicles, the increase in their popularity means that safety reform is needed to protect emergency responders. Federal regulators and fire protection experts have warned of the risks to firefighters from electrical vehicle fires. In particular, they have highlighted the lack of training and resources available to firefighters to safely handle these types of fires. For example, one-third of fire departments have no specific training for electric vehicle or hybrid car fires. Additionally, firefighters need to be able to quickly identify whether a vehicle uses an alternative fuel or an electrified battery pack, which can be difficult in low-light conditions.
To address these challenges, several practices have been recommended. These include using thermal imaging cameras to help identify the type of vehicle and the presence of any hotspots, establishing an appropriate incident command structure, and securing a large and continuous water supply. In some cases, alternative approaches have been suggested, such as placing the burning vehicle in a converted shipping container or dumpster to contain the fire.
Furthermore, as electric vehicles can generate an electric shock of 600 or more volts, it is essential for firefighters to power down the vehicle if possible. This can help reduce the risk of electric shock and make it safer for firefighters to work on the vehicle.
Overall, while electric vehicles offer important environmental benefits, it is crucial that safety regulations keep pace with their growing popularity to ensure the protection of emergency responders. This includes providing firefighters with the necessary training, resources, and protocols to effectively and safely handle electric vehicle fires.
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Frequently asked questions
No. Firefighters are not fully equipped to fight all electric vehicle fires. Electric vehicles (EVs) are powered by lithium-ion batteries, which can be subject to defects that cause the batteries to overheat, catch fire or explode. Firefighters need to be trained to identify the type of vehicle involved in a fire and establish an appropriate incident command structure. However, most firefighters across America have not been adequately trained in the key differences between putting out fires in gas and electric cars.
Electric vehicle fires can be extremely challenging and time-consuming to put out. They trigger longer-burning fires when they crash and get into serious accidents. Firefighters must often spend hours dousing the car with a large volume of water to extinguish the fire. In addition, electric and hybrid vehicles can generate an electric shock that in some cases can unleash 600 or more volts to an unsuspecting firefighter.
To better equip firefighters to fight electric vehicle fires, safety reform and improved safety protocols are necessary. This includes providing firefighters with the training and resources they need to safely and effectively respond to electric vehicle fires, such as thermal imaging cameras to help identify the type of vehicle and the extent of the fire.
There have been several incidents of electric vehicle fires that have posed challenges to firefighters. For example, in 2017, the Orange County Fire Authority in California battled a fire from a burning Tesla SUV that crashed into a garage. The firefighters extinguished the fire, but the car reignited multiple times. In another incident, a Tesla reignited on a tow truck after crews believed it had been extinguished.
