Outage planning guides
Storm Power Outage Checklist
A storm checklist keeps backup power decisions simple when the forecast changes quickly and stores may already be crowded.
Use this before hurricanes, thunderstorms, ice storms, wind events, and regional storm systems that may interrupt utility power.
Suggested loads
| Load | Watts | Priority | Note |
|---|---|---|---|
| Phones and alert devices | 5-25 watts | critical | Charge fully before the storm and reserve backup capacity. |
| Refrigerator | 120-200 running watts | critical | Avoid repeated door openings once power is out. |
| Sump pump | 400-1,200 running watts | critical | Only relevant for homes with water intrusion risk, but very important when needed. |
| LED lighting | 10-60 watts total | useful | Battery lanterns and low-watt lights stretch backup runtime. |
| Router or radio | 5-40 watts | useful | Have more than one way to receive updates. |
Planning steps
- Charge batteries, phones, laptops, and power stations before weather arrives.
- Move backup equipment, cords, and lights to a dry accessible location.
- Rank loads by safety, communication, food protection, and property protection.
- Estimate runtime for the first night and the following day separately.
- Confirm generator fuel, outdoor placement, and extension cord condition before the storm.
Example plan
- Duration
- 36 hours
- Estimated energy
- 2,000-5,000 Wh for storm essentials, depending on pump use and refrigeration needs
- Battery note
- Battery backup is useful during the storm because it can run indoors within its rated limits and does not require fuel handling.
- Generator note
- A generator can be useful after the storm passes, but it must be operated outdoors and protected from unsafe weather exposure.
- Solar note
- Solar production may be poor during the storm and better during recovery, so plan the first night without relying on it.
Mistakes to avoid
- Waiting until the outage begins to find cords and chargers.
- Assuming a sump pump is optional during heavy rain.
- Running a generator in a garage, porch, or breezeway.
- Letting battery systems sit at low charge during storm season.
Safety and limits
- Stay away from downed lines and flooded electrical areas.
- Follow local evacuation and storm safety instructions.
- Use this checklist for planning estimates, not as a substitute for emergency guidance.
FAQ
What should I charge before a storm outage?
Charge phones, power banks, power stations, laptops, flashlights, radios, and any rechargeable lights you plan to use.
Should I rely on solar during a storm?
Solar may help during recovery, but clouds, rain, debris, and safety conditions can make production unreliable during the storm itself.
Related calculators
Home Outage Backup PlannerPlan 24, 48, or 72 hour backup needs for critical home loads using battery and generator estimates.Generator Wattage CalculatorEstimate running watts, starting surge, and a practical generator size for selected backup loads.Portable Power Station Runtime CalculatorEstimate how long a portable power station can run a load after efficiency losses and reserve.Refrigerator Backup Time CalculatorEstimate refrigerator or freezer backup time using battery capacity, duty cycle, and inverter efficiency.