Home battery backup vs generator — which for NB?

For New Brunswick homes, generators are typically the better choice over battery backup systems due to our frequent ice storms, extended outages, and heating needs during winter emergencies. Battery systems work well for short outages but struggle with the multi-day power losses common during Maritime ice storms.

Why Generators Excel in New Brunswick

New Brunswick's electrical challenges are unique in Canada. Ice storms can knock out power for days or even weeks, as we saw in the 2017 ice storm that left thousands without power for over a week. During these extended outages, a whole-home generator can run indefinitely on natural gas or propane, keeping your furnace, lights, and essential appliances running. Battery systems typically provide 8-24 hours of backup power, which isn't enough for our climate reality.

Heating is critical during NB winter outages. Most homes rely on electric heat pumps, oil furnaces with electric controls, or electric baseboard heating. A generator can power your heating system continuously, while batteries would drain quickly trying to run heat pumps or electric heating. This isn't just comfort — it's preventing frozen pipes and maintaining livable conditions.

Generator Options for NB Homes

Whole-home generators (10-22kW) cost $5,000-$15,000 installed and automatically start during outages. They run on natural gas or propane and can power your entire home indefinitely. Popular brands like Generac, Kohler, and Champion work well in our Maritime climate.

Portable generators (3-8kW) cost $800-$2,500 and require manual setup, but they're more affordable and can run essential circuits for days on gasoline. You'll need a transfer switch installed by a licensed electrician to safely connect any generator to your home's electrical system.

When Battery Backup Makes Sense

Home battery systems like Tesla Powerwall or Enphase work well for brief outages and can provide silent, automatic backup. They cost $15,000-$25,000 installed and excel at backing up specific circuits like your refrigerator, internet, and a few lights for 12-24 hours. If you have solar panels, batteries can store solar energy for use during outages.

Batteries are ideal if you experience frequent short outages (under 8 hours), want silent operation, or have solar panels. They're also maintenance-free and don't require fuel storage.

TSANB Requirements

Both generators and battery systems require TSANB permits and inspection when connected to your home's electrical system. A licensed electrician must install the transfer switch for generators or the battery inverter system. Never connect a generator directly to outlets — this creates deadly backfeed that can electrocute NB Power workers.

The NB Reality Check

Given our ice storm history and heating requirements, most New Brunswick homeowners get better value from a natural gas or propane generator. Battery systems are emerging technology that work well in milder climates with shorter outages, but they're not yet practical for Maritime winter emergencies.

Consider your specific needs: frequent short outages favor batteries, while our typical extended winter outages favor generators. Many electricians recommend starting with a generator and adding batteries later if you install solar panels.

Need help finding an electrician to assess your backup power options? New Brunswick Electrical can match you with local professionals who understand our unique power challenges and TSANB requirements.