A drone shot follows wind blowing through tinder-dry grass to transmission lines that clank ominously in the Sierra Nevada foothills. The opening scene of Apple TV+’s The Lost Bus is not subtle: The electric utility is painted as the villain behind the fire the down-on-his-luck school bus driver hero has to overcome.
The movie was based on the real-life tragedy that unfolded when a 97-year-old suspension hook (C-hook) broke, causing a transmission line to fall and spark a fire that took lives, destroyed 18,000 structures and nearly wiped Paradise, Calif., off the map. The 2018 Camp Fire forever harmed the public’s trust. In a rare criminal case against a corporation, Pacific Gas and Electric pleaded guilty to 84 counts of involuntary manslaughter.
Since then, there have been many other massive wildfires throughout the United States, most notably in Hawaii and California. Some have been blamed directly on utilities, such as the Maui fire that destroyed Lahaina. The Palisades and Eaton fires in early 2025 in California caused an estimated $28 billion to $35 billion of insured property losses, the highest wildfire loss estimate yet in the U.S.
Grid operators and utilities no longer can afford to view climate-change-fueled wildfire risk as merely an environmental or safety issue. It’s a systemic reliability, financial and governance challenge. And it has implications for operations, investment strategy and long-term planning.
This is the third in a series of how extreme climate events affect the grid, following previous features on extreme heat and extreme precipitation.
The Climate-wildfire-electricity Nexus
While fires always have been a risk, multiple studies conclude climate change has “led to an increase in wildfire season length, wildfire frequency and burned area,” according to EPA.
The science is straightforward: Higher temperatures and longer dry seasons pull moisture out of vegetation, making it easier to burn. Precipitation that may end a drought also can create excessive growth in grasses and undergrowth, adding fuel for future fires.
Climate change also causes an increase in lightning strikes, the main natural cause of wildfires, responsible for 15% of wildfires and 60% of acres burned. That risk will continue to grow: Each 1-degree Celsius increase in global temperature increases lightning strikes by about 12%.
Grid operators and utilities have double exposure to the increasingly fire-prone environment: Grid assets can cause fires and be damaged by them.
There’s also a feedback loop when it comes to liability, particularly for investor-owned utilities, according to a report from Stanford University’s Climate and Energy Policy Program (CEPP).
“Because the economic damages from a single catastrophic wildfire can reach into the billions of dollars, the possibility that a utility could be found liable for a fire as a result of its infrastructure causing an initial ignition creates serious financial challenges for utilities,” the report said. “This makes IOUs riskier investments, which, in turn, makes it more difficult and expensive for them to access the capital needed to build infrastructure.”
Oregon PUC Chair Letha Tawney said liability fears impede data-sharing that could help the industry better understand the root causes of fires. (See Retribution Fears Impede Wildfire Mitigation, FERC Conference Speakers Say.)
Three Lines of Defense for Wildfire Risk Management
One approach to wildfire risk is to think about preventive measures, proactive response when fires happen and post-fire recovery. An IEEE paper defined these three lines of defense: “The first line of defense focuses on strategies to prevent wildfires from occurring in the first place.” It includes prediction, detection and vegetation management.
“The second line of defense is focused on mitigation strategies and proactive response to minimize hazardous impacts of wildfires on the power system and its surrounding natural and built environment, should a wildfire spark.” This includes modeling active fires to predict their path and de-energizing lines ahead of the fire’s spread.
“Finally, if a wildfire sparks and spreads, we need a third line of defense that is focused on resilience-building measures and recovery preparedness so the system can bounce back to its pre-wildfire condition as quickly as possible without suffering devastating losses.”
This includes not only immediate temporary support, but also investing in resilient rebuilding, such as how PG&E is installing distribution lines underground as it rebuilds Paradise, Calif.
Playing Defense in an Offensive Environment
Utilities, particularly those in the West and Southwest, are taking action, particularly on the first line of defense. For example, PG&E conducts aerial line inspections using LiDAR to identify trees that need trimming. Utilities are hardening lines, replacing aged components and undergrounding selective circuits, an expensive process. In 2023, PG&E lowered the cost of its undergrounding program from $4 million per mile to less than $3 million per mile.
On dry, windy days with high fire risk, utilities can preemptively power down lines. Public safety power shutoffs (PSPS) may lower risk but create public backlash when they stretch into days. It’s an example of how utilities must juggle tradeoffs between safety and reliability, as well as liability and service continuity.
Technology is helping to both monitor and manage the grid’s wildfire risk, with solutions ranging from pole-based monitoring, such as Gridware, to overhead line sensors, like those from Sentient Energy, as well as hardened components from hardware suppliers like ABB and Eaton.
Fires also complicate forecasting load and, where there are lots of solar assets, generation. “Wildfire smoke causes wiggling in the PV power output, which has the potential to impact the frequency stability of the grid,” a research paper found.
Some utilities have tried to get ahead of the financial risks, too. For example, the three largest California IOUs have started a California Wildfire Fund, with a $3 charge each month for account holders; however, the massive 2025 fires will drain funds earlier than expected. A group of policy experts proposed a national wildfire fund to spread risk across states.
While these approaches are needed, many are reactive and localized, focused on risk reduction, not system transformation.
Operating in the Heat of the Moment
When a wildfire starts, utilities must decide whether and where to power down the transmission and distribution lines. In the 2025 Altadena fires in the Los Angeles area, Southern California Edison (SCE) was criticized for powering down only four of the 12 circuits in the community.
Technology can give utilities and emergency services real-time fire monitoring and precise modeling of where and how fast the fire is likely to spread, based on satellite monitoring feeding into models that account for topography, wind, vegetation cover and more. OroraTech’s map of the spread of part of the Eaton fire shows how sophisticated this modeling has become.
Communication between grid operators and emergency services is critical, but often challenging, during a fire. The Associated Press reported that during the 2023 Lahaina wildfires on Maui, dispatchers, the local fire department and the utility, Hawaiian Electric Co., had significant difficulty coordinating. The culprits? Failing cellular networks, downed towers and separate radio channels.
Toward Climate-adjusted Grid Architecture
Utilities in areas with wildfire risk must treat that risk as a fundamental design parameter, in the same way they plan for load growth or changing generation mix.
There are questions for asset siting: Should critical lines or substations even be in fire zones? And for resilience planning: How should fire exposure be reflected in reliability metrics such as SAIDI and SAIFI? And for investment frameworks: How should regulators support preemptive resilience spending, not just post-event recovery?
The goal should be a climate-adjusted grid architecture with distributed, flexible and modular systems that can operate safely in fire-prone regions. Software, sensors and hardware solutions need to be designed to make a grid that can fail safely or self-isolate.
As remote communities consider their future resilience, the “grid edge” shifts. The main hospital in Paradise, for example, was rebuilt with an islandable 1-MWh energy storage and 425-kW solar microgrid to protect against PSPS and outages. Grid-attached microgrids and stand-alone systems should be explored for remote communities, a strategy that has worked in fire-prone remote areas in Australia, where removing the connection to the grid reduces fire risk for grid and off-grid customers.
The changing insurance and finance landscape will constrain the buildout of climate-adjusted grid architecture: Utilities are facing harder capital environments due to fire risk exposure.
From Centralized Risk to Distributed Resilience
To achieve a grid that is less likely to cause fires and more able to react to and rebuild resiliently after, there are policy levers at federal and state levels that can help.
While the federal government has reduced incentives for many types of renewables, utilities should lobby to reinstate incentives that support distributed resilience investments.
At the state level, regulators need to assess nontraditional infrastructure investments with an eye on their lifetime value, especially given that the value may be measured in not only homes but also lives saved. The gnarliest issue for regulators is how to balance cost recovery for proactive adaptation while keeping utility bills reasonable.
The Fire Next Time
Wildfire risk is reshaping the grid faster than most planning cycles can adapt. Yet for utilities and grid operators, rebuilding better after fires and getting ahead of future fires is not optional, it’s essential. Without moving from reactive defense to proactive resilience, the grid’s assets and their owners’ financial health will be at risk.
To mitigate wildfire risk and minimize future liability, utilities need to integrate climate risk — from fires, floods and storms — into every capital and operational decision. As the industry adapts to these risks, there are opportunities to develop innovative business models centered on resilience as a service. There also is a need to build cross-sector partnerships to facilitate smooth coordination with first responder groups on the ground when fires happen.
Wildfire is a risk no one wants, but it’s a reality that no longer is a seasonal hazard. Industry leaders who shift their organization’s mindsets from “compliance operators” to “resilience stewards” will be best positioned to survive in this new era.
Power Play Columnist Dej Knuckey is a climate and energy writer with decades of industry experience.






