Winter is one of the toughest seasons for household electrical systems. Snowstorms, freezing rain, high winds, and overloaded utility infrastructures can knock out power for hours or even several days. In recent years, severe winter weather has caused widespread outages across states like Texas, Oregon, and Michigan, leaving millions without heat or electricity during cold snaps. The winter storm in January 2026 is a recent reminder of this risk.

Understanding how to prepare for power outage in winter can protect your home, your health, and your family. This guide will walk you through the causes of winter outages, actionable tips, and the backup energy systems to keep your home running.

What Causes Power Outages in Winter?

1. Heavy Snow and Ice

Snow accumulation can weigh down tree branches and power lines. Ice storms are even more destructive—ice adds significantly more weight than snow, causing poles and cables to snap.

2. Windstorms

High winds can uproot trees or throw debris into electrical lines. In coastal or mountainous areas, wind gusts can take down entire feeder lines, affecting thousands of households.

3. Extreme Cold

Bitter cold increases energy demand for heating. When load spikes beyond the grid’s ability to supply, utilities may perform rolling outages or brownouts, intentionally cutting power to protect infrastructure.

4. Aging Grid

In many regions, power grids weren’t designed for the extreme weather events we experience today. Outdated electrical equipment, delayed maintenance, or insufficient capacity leads to failures.

5. Human Interference or High Consumption

Vehicle accidents, construction mishaps, or damaged transformers can also cause sudden localized outages. Also, when temperatures plunge, demand for electric heaters surges. This overload can trigger rolling outages or grid protective shutdowns.

10 Tips to Prepare During a Winter Power Outage

Practical preparation reduces risk, stress, and repair costs afterward. Below are deeper, actionable tips.

1. Keep Warm Clothing Ready

Prepare multiple layers of clothing: thermal socks, fleece jackets, insulated pants, beanies, scarves, and gloves. Wool and down retain heat much better than cotton. Keep extra blankets or sleeping bags in an easily accessible location so everyone can bundle up quickly if the power fails overnight.

2. Prepare a 72-Hour Food Supply

Have at least three days of shelf-stable food on hand. Prioritize items that don’t require cooking, such as canned soup, baked beans, peanut butter, canned tuna, granola, or instant oatmeal (which can be heated with boiled water if you have a camping stove).

3. Store Clean Water

Water systems may freeze or shut down if pumps lose power. Store at least one gallon per person per day, ideally 3–5 gallons per person to cover both drinking and hygiene needs. Fill bathtubs or large containers in advance to flush toilets and wash hands.

4. Charge Electronics in Advance

Before the storm arrives, plug in every device: smartphones, laptops, tablets, flashlights, portable radios, walkie-talkies, and power banks. Label chargers and keep them in a designated spot so you aren’t searching in the dark.

5. Insulate Doors and Windows

Cold air can seep in through even small gaps, rapidly lowering indoor temperatures. Install weather stripping or door draft stoppers, and seal window edges with towels or bubble wrap. The goal is to trap warm air inside while reducing wind chill penetration from outside.

6. Keep a Battery-Powered Radio

Cell towers may go down, and your phone battery won’t last forever. A battery-powered or hand-crank radio provides access to emergency broadcasts, weather alerts, evacuation notices, and power restoration updates. It can be the difference between being informed and being isolated if your internet connection disappears.

7. Prepare a First-Aid Kit

Winter brings higher risks of cold-related injuries like hypothermia, frostbite, slips on ice. Your kit should include antiseptic wipes, bandages, gauze, elastic wraps, over-the-counter pain relievers, flu and cold medicine, and any essential prescription drugs.

8. Protect Pipes

Frozen pipes burst frequently during winter outages. Keep faucets slightly dripping and open cabinet doors under sinks to allow warm air to circulate around plumbing. If possible, wrap exposed pipes in foam insulation sleeves, towels, or blankets.

9. Choose a Single Heated Room

When heating is unavailable, concentrate your family’s activity in one insulated space—ideally a room with minimal windows and good thermal retention. Close off unused areas, roll towels along the bottoms of doors, and keep everyone bundled in that room.

10. Have Reliable Backup Energy

This is the most critical protection. Lighting, heating devices, refrigerators, internet routers, medical equipment, and communication tools all depend on electricity. Having a dependable backup system keeps your household functioning when the grid goes dark.

Home Backup Power Solutions for Outage

When planning a backup power solution, there are three major options: generators, portable power stations, and battery banks.

For most modern households, lithium batteries for home backup systems are the best choice, which deliver stable and safe power without fumes, noise, or fuel storage risks.

Let’s break them down from a clear comparison.

Generators (Gas / Propane)

Advantages:

• High peak wattage
• Runs heavy loads (space heaters, welders)
• Affordable upfront

Limitations:

• Extremely noisy
• Cannot be used indoors
• Dangerous fumes (carbon monoxide)
• Fuel supply limited
• Fuel degrades in storage
• Most fail to start below 15°F without prep

Verdict:

Useful for short emergencies, terrible for long, cold, residential outages.

Portable Power Stations

Advantages:

• Plug-and-play
• Good for mobility
• Charge phones, laptops, small fridges

Limitations:

• Expensive per watt-hour
• Limited capacity
• Internal batteries degrade faster
• Not designed for powering whole rooms or multi-day outages

Verdict:

It can provide a reliable power supply for occasional power outages, but is not suitable for long-term use.

Battery Banks (Lithium)

Advantages:

• 4000+ charge cycles
• Nearly 100% usable capacity
• Non-flammable chemistry
• Flexible for different energy consumption
• Compatible with off-grid solar systems
• Operates quietly indoors
• Can run multiple appliances simultaneously

Limitations:

• Expensive for a whole-home energy supply
• Need additional components such as solar charge controller and inverters

Why Not Lead-Acid?

• 50% usable capacity
• Loses performance in cold
• Lifetime measured in hundreds of cycles
• Requires ventilation
• Heavy and bulky

Verdict:

If you want reliable, indoor, multi-day power, lithium battery bank is the best winter backup choice.

Recommended Redodo Lithium Batteries for Home Backup

Redodo LiFePO4 batteries are designed specifically for outdoor, RV, off-grid, and home backup use. Here are the top recommended models for home backup power, providing continuous energy even if utility power is down for days.

12V 320Ah Mini Bluetooth Lithium Battery

The Redodo 12V 320Ah Mini Bluetooth battery is a high-capacity, space-efficient backup solution for households. It can provide reliable power even when the grid goes down. Its upgraded BMS features Bluetooth monitoring and low-temperature protection for safer operation during winter outages. The compact “mini” footprint makes it especially suitable for homes, garages, basements, cabins, or RVs used as winter emergency shelters.

Key Points:

• 4096Wh usable capacity for multi-day power support
• High continuous discharge capability for essential loads
• Built-in Bluetooth for real-time monitoring
• Low-temp protection for cold weather
• Compact Mini design for space saving

Redodo 12V 320Ah Mini Bluetooth Lithium Battery 4 Days of Off-Grid Power for RV/Marine/Solar/Home Shop Now

12V 300Ah Lithium Battery

This powerful 300Ah lithium battery is a strong entry-level choice for homeowners looking to maintain essential loads during a short winter outage—think refrigerator, lighting, router, low-wattage heaters or electric blankets. It’s ideal for apartments, small homes, cabins, or supplemental backup use.

Key Points:

• 3840Wh usable capacity
• 2560W continuous output
• EV-grade prismatic LiFePO4 cells for durability
• Support parallel and series multiple units for high power demands

Redodo 12V 300Ah Lithium Battery Replaces 6*12V 100Ah AGM Batteries Shop Now

12V 400Ah(410Ah) Lithium Battery

For households that want extended runtime and can’t afford to compromise on key appliances, this advanced 400Ah lithium battery offers significant capacity while retaining flexibility of system design. It’s suitable for multiple rooms, media setups, and longer outages.

Key Points:

• 5248Wh usable capacity
• 3200W high power output
• Supports higher discharge loads
• Ideal for homes with moderate to heavy backup demand

Redodo 12V 400Ah (410Ah) Lithium Battery King of Power | Home Energy Backup Solution Shop Now

24V 100Ah Lithium Battery

This 24V 100Ah lithium battery is an excellent choice for homeowners who prioritize value. With a higher 24V voltage, it delivers the same energy with less current draw, especially useful when paired with larger inverters or longer cable runs. This model is perfect for medium-size homes or off-grid cabins.

Key Points:

• 2560Wh usable capacity
• Lower amperage gives less wiring heat loss
• Compatible with 24V inverter systems (2000–4000W)
• Great for larger backup setups

Redodo 24V 100Ah Lithium Battery High-Performance 24V Power Solution Shop Now

Based on feedback from our users, many choose to pair two 24V 100Ah batteries together in parallel to create a 24V 200Ah battery system or in series to build a 48V 100Ah setup. The configurations are work well for powering their home.

Read Alexander's story: A Reliable Solution for Power Outages

48V 100Ah Lithium Battery

The 48V 100Ah solar battery is the premium option for a whole-home backup or integrating a winter-ready off-grid solar system. The high voltage design aligns with high-power inverters and offers the lowest current draw for given power capacity, which is a huge benefit for home installation.

Key Points:

• 5120Wh usable capacity
• Smart Bluetooth monitoring
• Low-temp cutoff protection for cold weather
• Supports large-scale inverters (5 kW+)
• Best for full-house, extended-outage resiliency

Redodo 48V 100Ah Lithium Solar Battery Upgrade BMS for Complete Protection Shop Now

Explore the full range of home lithium battery solutions to keep your home safe, warm, and reliably powered during unexpected blackouts.

Set Up a Winter Home Energy Backup System

When you’re ready to set up backup power for your home, the following two options can help you quickly build a reliable energy system for winter even around year use:

Option A: Portable Power Backup

Ideal for small homes, apartments, or renters.

Power uses:

• Phones, laptops
• Wi-Fi routers
• LED lights
• Medical devices
• Low-wattage heaters or electric blankets

Battery Recommendation:

12V lithium batteries paired with 1000–3000W inverter

Option B: Home Battery Bank with Solar

For long outages or off-grid households.

Power uses:

• Runs fridges, washing machines, HVAC
• Works silently
• Operates without gasoline
• Provides power for weeks

Battery Setup Recommendation:

• 12V / 24V / 48V LiFePO4 battery bank
• MPPT solar charge controller
• Pure sine wave inverter
• Roof or ground solar panel array

Why Winter Power Outages Are More Dangerous?

Losing electricity in summer is inconvenient. In winter, it means losing the systems you depend on for warmth and basic living.

Without power, electric heaters and HVAC units stop working, leaving your home exposed to freezing temperatures. As indoor temperatures drop, water pipes can freeze and burst, cutting off water supply and causing costly property damage. Food and medicine can spoil, and if outages are prolonged, even communication networks may become unavailable.

On top of that, severe winter storms often make roads icy or blocked with snow, meaning you may not be able to leave your home to reach a shelter, store, or warm location. This combination of extreme cold, limited mobility, and lack of heating makes winter power outages uniquely hazardous for households.

Conclusion

Knowing how to prepare for power outage in winter means thinking ahead before a winter storm hits. Stock emergency supplies, protect your pipes, and plan a backup energy solution that doesn’t rely solely on the power grid.

Redodo’s lithium home batteries offer a reliable, maintenance-free, and cost-effective approach to home energy resilience. Whether you choose a portable setup or a permanent solar-powered backup, battery systems ensure that you stay connected, warm, and protected.

Read More:

Best Battery for Home Solar System Backup

DIY Off-Grid Solar System with Lithium Batteries

How Many Solar Batteries Do I Need to Power a House?