What causes power outages in New Brunswick and how can I prepare?

Power Outage Causes and Preparation for New Brunswick Homes

New Brunswick experiences more power outages than many Canadian provinces due to its geography, weather patterns, and grid infrastructure. Understanding the causes helps you prepare effectively.

Major Causes of NB Power Outages

1. Ice storms (most damaging)
NB's location between the Atlantic and the continental interior creates perfect conditions for freezing rain. Ice accumulation of 15–25mm on power lines and tree branches causes widespread damage. Major events:

• January 2017: Southeastern NB, 130,000+ customers without power, some for over a week


• January 2024: Multiple rounds of freezing rain across central and southern NB


• Ice storms typically affect the largest area and take the longest to restore

2. Post-tropical storms and nor'easters
The remnants of Atlantic hurricanes and powerful nor'easters bring 80–130 km/h winds and heavy rain. Falling trees and flying debris take down power lines. The Bay of Fundy coast (Saint John to Alma) and Gulf coast (Shediac to Bathurst) are most exposed.

3. Heavy wet snow
Spring and late-fall wet snowstorms (March–April, November–December) deposit heavy, sticky snow on power lines. Combined with wind, this breaks branches and overloads lines. Rural areas with overhead lines through forested corridors are most vulnerable.

4. Summer thunderstorms
Lightning strikes on transformers and power lines cause localized outages. The Saint John River Valley and southern interior see the most thunderstorm activity. These outages are usually short (1–4 hours) but can damage electronics through surges.

5. Equipment failure
Aging infrastructure — transformers, switches, insulators — fails under stress or simply from age. NB Power has been upgrading infrastructure, but rural distribution lines in particular have older equipment.

6. Vehicle accidents
Cars and trucks hitting utility poles is a surprisingly common cause of localized outages, especially on rural highways.

Outage Duration by Cause

| Cause | Typical Duration | Worst Case |
|-------|-----------------|------------|
| Thunderstorm | 1–6 hours | 12–24 hours |
| Wind storm | 4–24 hours | 2–3 days |
| Wet snow | 4–48 hours | 3–5 days |
| Ice storm | 1–7 days | 7–14 days |
| Equipment failure | 1–4 hours | 8–12 hours |
| Vehicle accident | 2–6 hours | 12 hours |

Electrical Preparation

Whole-house standby generator ($6,000–$20,000 installed)
The ultimate solution. Starts automatically within 10–30 seconds of power loss. Runs on propane or natural gas. Requires:

• TSANB electrical permit


• Automatic transfer switch at the panel


• Propane tank (500–1,000 litre for extended outages)


• Professional installation by a licensed electrician


• Annual maintenance (oil change, exercise run)

Portable generator ($800–$3,000)
Manual startup, gasoline-powered, runs essential circuits through a manual transfer switch or interlock kit.

• Transfer switch installation: $800–$1,500 by a licensed electrician


• Never connect a portable generator directly to your panel without a transfer switch — this backfeeds the grid and can electrocute NB Power line workers


• Store fuel safely — gasoline degrades in 3–6 months without stabilizer


• Run outdoors only — generator exhaust (carbon monoxide) kills quickly in enclosed spaces

Battery backup systems ($5,000–$15,000)
Whole-house battery systems (Tesla Powerwall, Enphase IQ, etc.) store grid or solar power and provide seamless backup. No fuel, no noise, no exhaust. Limited runtime depends on battery capacity and your loads — typically 8–24 hours for essential circuits.

Uninterruptible Power Supply / UPS ($80–$500)
Small battery backup for computers, internet equipment, and medical devices. Provides 15–60 minutes of runtime — enough to save work and shut down safely, or keep internet running during a brief flicker.

Non-Electrical Preparation

• Flashlights and batteries — LED headlamps ($15–$30) are the most practical option. Have at least 2 per household member.
• Battery-powered or hand-crank radio — for NB Power and Environment Canada weather updates when internet is down
• Water supply — if you're on a well, no power means no water pump. Store 4 litres per person per day for 3 days minimum (12 litres/person). Fill bathtubs before a forecasted storm for flushing water.
• Heating backup — wood stove or pellet stove with manual ignition. A propane or kerosene heater rated for indoor use (with ventilation). Never use a BBQ, outdoor propane heater, or generator indoors.
• Phone charging — car charger, portable power bank (20,000+ mAh), or small solar charger
• Food — keep freezer full (frozen items maintain temperature longer). A full freezer stays frozen 48 hours without power if kept closed. A half-full freezer: 24 hours.

Surge Protection After Outages

When power is restored after an outage, voltage surges are common as NB Power re-energizes lines. A whole-house surge protector ($300–$775 installed) protects your electronics during restoration. If you don't have one, unplug sensitive electronics before a forecasted storm and wait 10–15 minutes after power returns before plugging them back in.

NB Power Outage Reporting

• Report outages: 1-800-663-6272 or NB Power app/website
• Outage map: Available on NB Power's website — shows affected areas and estimated restoration times
• Priority restoration: Hospitals, water treatment, and main feeder lines are restored first. Rural branch lines serving fewer customers are typically last.

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