Quick answers to the most common questions we get about backup power and outage preparedness.
Choosing Backup Power
What’s the best backup power for my home?
Most Ontario homeowners are best served by a dual-fuel portable generator paired with a manual transfer switch for essential circuits. If you want automatic, hands-off coverage and have the budget, a standby generator or a whole-house battery system is worth considering. See our best home backup power solutions roundup for a full breakdown.
How big a generator do I need?
Size it by adding up the running watts of the appliances you want to power, then account for the surge (starting) watts of motor-driven loads like refrigerators and well pumps. Our generator sizing guide walks through the math with a worksheet.
Do I need a generator or a battery?
That depends on whether you want silent, indoor-friendly power (battery) or longer runtime at a lower upfront cost (generator). Batteries are quiet and maintenance-free but expensive per kWh; generators run as long as you have fuel but need CO-safe outdoor placement. This portable generators comparison and whole-house battery guide cover both sides.
Safety
Where should I run a generator?
Never indoors, in a garage, or near any window, door, or vent. Carbon monoxide is deadly and odorless. Run the generator at least 20 feet from the house with the exhaust pointed away, and install a battery-powered CO detector. Read our full generator safety guide.
Do I need a transfer switch?
If you’re connecting a generator to your home’s wiring, yes — a manual or automatic transfer switch is required by code and prevents dangerous backfeeding. A licensed electrician must install it. You can skip a transfer switch by using heavy-duty extension cords to individual appliances, but that’s less convenient.
Outages & Food
How long does food last during a power outage?
A full freezer keeps food frozen for about 48 hours (24 hours if half full) if you keep the door closed. A refrigerator keeps food cold for about 4 hours. Our food safety during outages guide has the full keep-or-toss list.
How do I prepare for an ice storm?
Start with backup power, then food, water, heat, lighting, and a communication plan. Our Ontario ice storm preparation guide is a step-by-step checklist built for Eastern Ontario winters.
How long can a power station run a fridge?
A mid-size power station (1,000–2,000 Wh) runs a modern fridge for 12–24 hours depending on the fridge’s draw and ambient temperature. See how long a power station can run a refrigerator for the runtime math.