Can I plug a generator directly into an outlet?

No, you absolutely cannot plug a generator directly into a household outlet. This practice, called "backfeeding," is extremely dangerous and illegal in Ontario, potentially causing electrocution, fires, and death to utility workers.

When you plug a generator into a regular outlet, electricity flows backward through your home's wiring system and out to the electrical grid. This creates multiple deadly hazards: the power can electrocute Hydro Ottawa workers trying to restore power (they expect lines to be dead), it can damage your electrical panel and appliances, and it bypasses all the safety systems in your home's electrical system. The generator's power isn't properly distributed through your panel's breakers, creating fire and shock risks throughout your home.

Proper generator connection requires a transfer switch installed by an ESA-licensed electrician. There are two main types: manual transfer switches (you manually switch between utility and generator power) and automatic transfer switches (they switch automatically during outages). The transfer switch isolates your home from the electrical grid when running on generator power, preventing backfeeding while safely distributing power through your electrical panel.

In Ontario, generator installation requires an ESA permit and inspection. The electrician will install the transfer switch, run appropriate wiring, and ensure the system meets Ontario Electrical Safety Code requirements. For portable generators, a manual transfer switch typically costs $800-1,500 installed. Whole-home automatic systems with permanently installed generators range from $5,000-12,000 depending on size and features.

For temporary power during outages, use extension cords to plug appliances directly into the generator, keeping it outside and away from windows. Never run generators indoors or in garages due to deadly carbon monoxide risk.

If you're considering backup power for your Ottawa home, we can help you choose the right generator size and install a proper transfer switch system. A free consultation will help determine whether a portable generator with manual transfer switch or a whole-home automatic system best fits your needs and budget.