Power outages are one of the most common disruptions Americans face. From brief weather-related outages to extended blackouts caused by major storms, infrastructure failures, or cyberattacks on the electrical grid, losing power can quickly become a serious safety hazard — especially for households that depend on electrically powered medical equipment, refrigerated medications, or heating and cooling systems. Ready.gov’s Power Outage Hazard Information Sheet provides comprehensive guidance for staying safe before, during, and after power outages of any duration.
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The Hidden Dangers of Power Outages
Many people underestimate how quickly a power outage can become dangerous. Beyond the inconvenience of darkness, outages can cause food safety failures (refrigerators keep food safe only 4 hours without power), carbon monoxide poisoning from improperly used generators or indoor combustion, hypothermia or heat illness from loss of heating/cooling, medical equipment failure for people dependent on powered devices, and water system disruption since both municipal systems and private wells require electricity.
Before a Power Outage: Preparation
- Register with your utility company if you or a household member depends on electrically powered medical equipment. Many utilities maintain priority restoration lists.
- Build an emergency kit that does not depend on electricity: flashlights (with backup batteries), battery-powered or hand-crank radio, manual can opener, non-perishable food, and water.
- Invest in backup power carefully. Portable generators must be operated OUTDOORS, at least 20 feet from your home, exhaust away from windows and doors. Have CO detectors installed. Never use a generator indoors.
- Prepare your devices. Keep phone batteries charged. Consider a battery bank or solar charger. Download offline maps and emergency contacts in case internet connectivity is lost.
- Know your medical equipment needs. If you use a CPAP, ventilator, oxygen concentrator, or insulin pump, discuss extended outage plans with your healthcare provider and have a plan for relocation if needed.
- Identify nearby resources. Know the location of warming and cooling centers in your community, and which neighbors have generators or may need assistance during extended outages.
During a Power Outage
- Keep refrigerator and freezer doors closed as much as possible
- Use only flashlights for lighting — never candles (fire risk)
- Do not use gas stoves, camp stoves, or charcoal grills for heating or cooking indoors
- Check on elderly neighbors and those with medical equipment dependencies
- Conserve phone battery by reducing screen brightness and disabling unnecessary features
- Listen to a battery-powered radio for official emergency updates
After Power Is Restored
- Discard any food that has been above 40°F for more than 2 hours
- Let appliances cycle on gradually to avoid overloading the restored electrical circuit
- Check carbon monoxide detectors after extended generator use
- Report remaining outages in your neighborhood to your utility company
How PubSafe Helps During Power Outages
Power outages disrupt the digital infrastructure that communities depend on for communication. PubSafe is designed to remain functional even when traditional infrastructure is degraded, providing neighbor welfare check coordination to quickly identify who has power and who needs help; generator sharing and resource matching connecting neighbors who have backup power with those who critically need it; official information relay distributing utility restoration timelines and emergency guidance through the community network; and medical vulnerability alerts allowing community members who depend on powered medical equipment to signal that they need priority welfare checking during extended outages.
In the aftermath of major storms that caused week-long or longer power outages, communities with strong mutual aid networks fared significantly better than isolated households. PubSafe is the tool that helps build that network. Download it now and connect your neighborhood before the next outage.
Resources
- Ready.gov Power Outages page
- CDC Power Outage Safety: cdc.gov/disasters/poweroutage
- CPSC Generator Safety: cpsc.gov
Download the Ready.gov Power Outage Hazard Information Sheet and prepare your emergency kit today. Connect your neighbors on PubSafe — so your community stays connected even when the grid does not.
Extended Power Outages and Infrastructure Resilience
Short-duration power outages (minutes to hours) are a common, manageable inconvenience. Extended outages — lasting days, weeks, or even longer — are a fundamentally different category of emergency that can threaten lives and cause significant economic harm. Extended outages have multiple potential causes, including major hurricanes and ice storms that damage large portions of the transmission and distribution network, wildfires that destroy utility infrastructure, geomagnetic storms from solar activity that can damage transformers, and cyberattacks on grid management systems.
The most severe potential grid disruption scenario involves damage to high-voltage transmission equipment, particularly large power transformers (LPTs). These enormous pieces of equipment — some weighing 400 tons or more — are not manufactured in the United States, take 12–18 months to procure internationally, and cannot be easily transported when roads and bridges are damaged. A major geomagnetic storm or physical attack targeting LPTs in multiple regions could cause outages lasting months to years in affected areas. The federal government has invested in programs to develop domestic LPT manufacturing capacity and maintain transformer stockpiles to reduce this risk.
For individuals and communities, the lesson from extreme outage scenarios is the same as for shorter outages: the longer the potential outage, the more robust your preparedness needs to be. Those who have stored adequate water and food, have non-electric heating and cooking options, and are connected to a community network for mutual aid will fare far better in extended outage scenarios than isolated, unprepared households.
Power Outages and Medical Dependencies
For Americans who depend on electrically powered medical equipment, power outages are not merely inconvenient — they can be immediately life-threatening. The population of power-dependent medical device users has grown significantly with the expansion of home health services, including people dependent on home oxygen concentrators, ventilators, electric wheelchairs, infusion pumps, implanted cardiac devices requiring phone-line charging, peritoneal dialysis machines, and insulin requiring refrigeration.
FEMA and Ready.gov recommend that power-dependent medical device users take the following steps: Register with your utility company’s life support or medical baseline programs — most utilities maintain a list of customers with critical medical power needs and use it to prioritize restoration, provide advance notification of planned outages, and connect customers with additional resources. Discuss your specific equipment’s power requirements and backup options with your healthcare provider and equipment vendor. Identify your local power company’s emergency contact and know how to reach a live person during an outage. Have a plan for where you will go and how you will get there if your home loses power for more than a few hours.
Community members can play an important role by knowing their neighbors’ medical power dependencies and proactively checking on them during outage events. PubSafe enables communities to maintain a voluntary registry of neighbors with medical power needs, so that when an outage occurs, welfare checks can be conducted systematically rather than relying on chance or memory.
Taking the Next Step in Your Preparedness Journey
Preparedness is not a single action — it is an ongoing practice. Every time you review your emergency plan, check your supply kit, or connect a neighbor to a preparedness resource, you are building community resilience. The cumulative effect of thousands of individuals and families taking preparedness seriously is a community that absorbs shocks, recovers faster, and takes care of its most vulnerable members during the worst days.
Bookmark the relevant Ready.gov hazard page, download the Hazard Information Sheet, and share this article with your family, coworkers, and neighbors. Join the PubSafe network to stay connected with your community before, during, and after any emergency. Check your local emergency management agency’s website for preparedness resources specific to your region. And consider volunteering with local emergency response teams — CERT (Community Emergency Response Team), volunteer fire departments, and local emergency management councils all welcome community members who want to contribute to a more resilient community.
Emergency preparedness does not require perfection. Start where you are, with what you have. Each small step builds on the last, and the journey from being unprepared to being genuinely ready is shorter than most people think. Take one step today — for yourself, for your family, and for your community.
