5 Hidden Dangers of Power Outages To Be Aware Of

June 9, 2025

Power outages disrupt more than just your lights and Internet connection. They can create health hazards, damage your home, and put lives at risk if you don’t take precautions. While temporary inconveniences, such as missing your favorite show or working from home in the dark, seem small, these five hidden dangers of power outages to be aware of are far more serious.

1. Foodborne Illnesses

When the power goes out, your refrigerator and freezer stop operating. Perishable foods, such as dairy, meat, and fresh produce, will slowly reach room temperature, allowing bacteria to grow rapidly. The USDA warns that food left above 40 degrees Fahrenheit for over two hours enters the “danger zone,” where harmful pathogens, like salmonella and E. coli , thrive.

2. Fire Hazards

Many people turn to candles and flashlights for light during power outages, but candles pose dangers. Home fires caused by candles spike during outages, especially in stormy seasons when used for extended periods.

3. Water Contamination and Sewage Backups

For homes reliant on private wells or municipal systems with electric pumps, power outages can disrupt the water supply. This leads to limited access to clean drinking water, as pumps used to bring water inside your home or purify it no longer function. Worse yet, sewage backup issues can arise, posing sanitation problems when multiple households share a single system.

4. Mold Growth

One of the lesser-known dangers of power outages is moisture-related damage. Without power, HVAC systems that regulate temperature and humidity stop working, causing basements and other enclosed areas to retain moisture. Accumulated water caused by storm damage or condensation can lead to mold growth within 24–48 hours. Mold exposure can also lead to respiratory issues, skin irritation, and allergic reactions, particularly in individuals with asthma or weakened immune systems.

5. Health Risks From Extreme Weather

The most immediate and life-threatening danger of a power outage comes from exposure to extreme heat or cold. During winter outages, your home may lack heating, leaving you vulnerable to frostbite or hypothermia. Conversely, if you lose air conditioning in the summer months, you might overheat. This is especially dangerous during heatwaves.

Health risks are even higher for people with existing medical conditions, such as senior citizens or individuals reliant on electrically powered medical devices.

Stay Protected

A power outage may seem like a minor inconvenience, but being aware of these five hidden dangers of power outages could prevent risks to your health, safety, and comfort. Investing in a backup power solution, such as a whole-home generator, ensures you’re prepared when the lights wink out.

Don’t wait until the next outage catches you off guard! Contact NW Generator Pros for generator installation in Portland , Oregon to learn more about installing a reliable whole-home generator. With expert installation and ongoing support, we’ll help you protect your home, health, and peace of mind.

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