Extreme Weather’s Impact on Global Power Outages and Portable Generator Use 

In recent years, extreme weather events have become more frequent and severe, leading to widespread power outages across the globe. Hurricanes, snowstorms, heatwaves, and heavy rainstorms have all contributed to increased disruptions in power grids, leaving millions without electricity every year. As a result, portable generator usage has risen significantly, providing a crucial backup power source for homes and businesses. However, while generators offer a solution during emergencies, they also come with concerns regarding safety, environmental impact, and efficiency.  

Learn more about the rise in extreme weather events, the increasing reliance on portable generators, and how to protect your generator and run it safely outside during these unpredictable conditions. 

The Rising Frequency of Global Extreme Weather Events 

Climate scientists and meteorologists have observed an increase in extreme weather events, many of which have led to catastrophic consequences. According to a report by the World Meteorological Organization (WMO), the past decade has seen record-breaking storms, heatwaves, wildfires, and floods, largely attributed to climate change. 

In 2024 alone, over 150 unprecedented climate-related disasters were recorded globally, making it one of the most extreme years on record. This included heatwaves, hurricanes, and flooding that displaced hundreds of thousands of people and caused billions in damages.  

Additionally, a 2025 study on global extreme weather events linked the increasing intensity of storms and wildfires to higher atmospheric temperatures. This has resulted in more frequent and prolonged disruptions to power grids, further underscoring the need for alternative energy solutions and emergency preparedness. 

The Growing Impact of Extreme Weather on U.S. Power Grids 

As extreme weather events become more common, power outages have become a significant issue. In the U.S., approximately 80% of all major power outages from 2000 to 2023 were attributed to severe weather. These outages have become more frequent and severe, affecting millions of homes and businesses for prolonged periods.  

The financial cost of these outages is also staggering. The National Oceanic and Atmospheric Administration (NOAA) reported that the U.S. experienced 27 weather disasters in 2024 alone, with total damages for the year exceeding $187.2 billion. 

Power grids are particularly vulnerable to storms, floods, and wildfires. In the U.S., for example, the electrical grid and energy infrastructure are not built to support present climate patterns and population densities. Between hurricanes in the Southeast, winter storms across the North, and intentional power shutdowns due to wildfires in the West, climate disasters in the U.S. leave thousands across the country in the dark for days. 

Share of Major Power Outages Attributed to Extreme Weather

Note: This data is from the Climate Central via the U.S. Department of Energy. Major power outages are defined as instances where at least 50k customers affected or there is service interruption of 300 megawatts or greater. 

Increased Reliance on Portable Generators 

With power outages becoming more common, the need for portable generators to bridge power coverage gaps has surged. Generators are an essential backup power source, keeping homes, hospitals, and businesses running during outages. 

Portable generators are crucial during severe weather events, providing emergency power when outages strike. They serve as life-saving devices by keeping essential equipment running: medical devices like oxygen concentrators and CPAP machines, refrigeration for food and medications, home heating and cooling, communication devices to stay connected with emergency services, and more. By ensuring access to power, portable generators help protect lives and maintain safety in critical situations. 

Portable Generator Operation Risks   

While portable generators are indispensable during emergencies, they also come with their own safety concerns. According to the ULSE, about 29 million Americans own a portable generator, primarily as a source of backup power during severe weather conditions. However, two-thirds of portable generator owners are not aware of the carbon monoxide (CO) risk from their portable generator despite generators being the leading cause of CO deaths. Carbon monoxide exposure and poisoning occurs when high levels of the gas accumulate in an area, like a closed or poorly ventilated room. Portable generators are the highest emitters of carbon monoxide among home power equipment, producing more CO than hundreds of cars combined.  

Portable generators also pose a serious fire risk if not used properly. Overheating, fuel spills, and improper placement near combustible materials can all lead to fires. Generators produce significant heat during operation – up to 1300˚F – and placing them too close to a home, shed, or flammable surfaces like dry leaves or wooden decks increases the risk of ignition. Additionally, running a generator in wet weather can lead to electrical fires because of the electrical panel’s exposure to moisture.  

Due to these risks, portable generator manufacturers give the following safety guidelines:  

• Do not run your generator indoors 

• Do not run your generator in wet weather  

• Use your generator outside and at least 20’ away from the home  

So, with an increase in global extreme weather events that lead to power outages, how can we follow best practices and ensure that portable generators are set up to operate outside safely to avoid carbon monoxide and fire risks?  

The Importance of Generator Protection During Extreme Weather 

One of the best ways to safeguard operating generators is by using protective running covers such as GenTent. While portable generators provide a critical power solution, they must be protected from extreme weather conditions to function safely and efficiently. Exposure to rain, snow, and high winds can damage generators, cause electrocution hazards, and lead to mechanical failures. 

GenTent is a weatherproof, NFPA-rated flame-retardant cover that shields portable generators from harsh conditions while it’s running. Here’s how GenTent enhances generator safety: 

• Protection from Extreme Weather: GenTent prevents water from entering the generator, reducing the risk of short circuits and electrocution. 

• Ventilation for Safe Operation: GenTent allows generator users to safely run their generators outside and 20’ away from the home. Also, unlike fully enclosed structures, GenTent allows for proper air circulation, preventing carbon monoxide buildup. 

• Wind and Storm Resistance: GenTent is designed to withstand up to 70MPH winds and hurricane-force precipitation, ensuring generators continue to function properly during extreme weather events. 

• Extended Generator Lifespan: Keeping a generator protected from the elements helps prevent rust, corrosion, and mechanical damage, extending its usability. 

During power outages caused by hurricanes, blizzards, and storms, GenTent provides an essential layer of protection, allowing families to rely on their generators without safety concerns. These portable generator running covers fit over 3,000 generator models, find out if yours is covered today.