Tech’s “Three-Mile Island” Moment: Lithium Battery Storage Catches Fire

Sixty miles from my house in Silicon Valley is a quiet village called Moss Landing. It is home to the Vistra Energy battery storage plant, connected to the Moss Landing Power Plant. Geographically, it is located on the coast between San Francisco and Silicon Valley to its north and Monterey, CA to its south. This location is the site of the world's largest lithium-ion battery storage facility.

Last week, on January 17, a fire broke out at this storage facility, sending towering flames and black smoke into the night sky and forcing the evacuation of about 1500 people.

The battery storage facility contains thousands of lithium batteries. These batteries store electricity from renewable energy sources like solar energy. Most electric vehicles use these same types of batteries. The tech industry uses lithium-ion batteries to power most laptops, tablets, and smartphones. My electric bike and scooter use them, too.

Lithium-ion battery fires present a complex and dangerous set of challenges that require careful consideration. These fires are not just a minor concern; they represent a high-risk scenario with several critical hazards:

• Rapid and Intense Combustion: Lithium-ion battery fires ignite quickly and burn at incredibly high temperatures, making them difficult to extinguish.
• Toxic Gas Release: As the batteries burn, they release a cocktail of hazardous gases that can be lethal to anyone in the vicinity, adding an additional layer of danger.
• Risk of Explosion: These fires aren't just about burn but explosive potential. A battery can explode violently, significantly amplifying the danger to anyone nearby.
• Self-Sustaining Fire: Lithium-ion batteries can generate their own oxygen supply, allowing fire to continue burning even in low-oxygen environments.
• Thermal Runaway: Thermal runaway causes a chain reaction that dramatically raises the battery's temperature, quickly escalating the fire to uncontrollable levels.
• Re-ignition Risk: Even after being extinguished, lithium-ion batteries can reignite due to residual heat and thermal runaway effects that can impact surrounding cells.
• Fire Spread: The intense heat generated by these fires can quickly spread flames through a building and sometimes extend into nearby communities.

For firefighters, these unique properties present significant operational challenges. The combination of extreme heat, toxic emissions, and the sheer unpredictability of how these fires behave makes them extraordinarily dangerous to fight.

This Moss Landing battery fire was large but contained within the protective walls around them, keeping it from spreading. However, the fire released a toxic cloud of gasses and acrid smoke which drifted north. Most of us in Silicon Valley received air quality alerts and were told to stay indoors, close windows, and mask up if we went out. When I woke up Saturday morning and went out, my eyes burned from the residue gasses still wafting north from the fire. It was a stark reminder of these fires' silent and insidious threat—not just to those immediately involved but to entire communities downwind.

From the tech world's perspective, this fire garnered much attention. The tech industry is acutely aware of the dangers of lithium-ion batteries igniting. The Moss Landing incident is the largest fire of its kind in our history to date.

Monterey Supervisor Bruce Church told the San Jose Mercury News that "this is really a Three Mile Island event for this industry. If renewable energy is going to be the future, it really needs to be safe energy. There's got to be lessons learned from this."

In today's tech landscape, manufacturers have gone to extraordinary lengths to ensure the safety of consumers when it comes to their mobile devices—whether that's laptops, tablets, or smartphones. From strict quality control to comprehensive testing protocols, the industry takes no shortcuts. Battery safety is a top priority, and only those from trusted suppliers make the cut. These suppliers undergo rigorous vetting processes and must meet safety standards to prevent potential hazards.

Modern devices are equipped with sophisticated hardware and software to monitor key aspects of battery health, including temperature, voltage, and current. This multi-layered approach includes a few key innovations:

1. Thermal Management: Devices are meticulously engineered to ensure efficient heat dissipation to prevent overheating.
2. Protective Circuitry: Batteries now come with an array of built-in safeguards such as overcharge protection, short-circuit prevention, and thermal cutoffs.
3. Improved Battery Chemistry: The evolution of battery chemistry, particularly in lithium-ion formulations, plays a significant role in making devices safer. Manufacturers are continually researching and implementing new solutions to minimize risks and extend the life of batteries.

In short, while the dangers of battery malfunctions used to be a bigger concern, the tech industry has implemented a robust system of protections to ensure that today's devices are as safe as they are powerful.

These same fundamental procedures are used for EVs, electric bikes and all consumer products that use lithium-ion batteries.

The energy industry also has strict rules and regulations on how lithium-ion batteries are used and stored. However, the Vistra fire, one of the largest to date, represents one of the worst of its kind. Understanding what caused it will be critical to determine whether this will be a potential setback for the renewable energy industry.

As of this writing, the cause of this fire is still under investigation and calls for independent probes are escalating.

While it may be premature to label this incident as the "Three Mile Island" event for the technology and energy sectors, it does deliver a wake-up call about the potential consequences a large-scale lithium-ion storage facility fire could have on the surrounding community. This situation highlights not only the immediate environmental effects but also the long-term implications for the role of lithium-ion technology in renewable energy.