Generators & Backup Power

FAQ From Calgary Homeowners

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common questions people ask

Popular Questions

Do you install standby generators in Calgary?

Yes. Crew Electrical Services can install standby generator electrical connections and the required switching equipment so your system is safe and code-compliant. The right setup depends on what you want powered, your electrical service capacity, and your home’s layout.

If you’re planning a standby generator, the best first step is defining your priorities so the system is designed around real needs, not guesswork.

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What’s the difference between a standby generator and a portable generator?

A standby generator is permanently installed and typically turns on automatically when power goes out. A portable generator is moved into place when needed and connected through a safe inlet and switching setup.

Standby systems are more seamless and powerful. Portable systems can be a practical budget-friendly solution when set up correctly.

Do I need a transfer switch or interlock kit?

Yes. If a generator is going to power circuits in your home, you need approved equipment that prevents backfeeding and keeps utility workers and your home safe.

A transfer switch or interlock kit ensures power can’t flow back onto utility lines and helps manage which circuits are energized during an outage. The best option depends on your panel, your power goals, and the type of generator.

Related: Permits & Warranty FAQ

Can I power my whole house with a generator?

Sometimes. Whole-home backup depends on generator size, fuel type, and your home’s electrical demand. Many homeowners choose a “priority loads” approach instead, powering essentials like heating equipment, refrigeration, sump pump, select lights, and key outlets.

Whole-home backup can be done, but it usually requires a larger system and more planning. The goal is reliability, not overspending.

How do you size a generator for my home?

Sizing starts with your priority loads and the starting power required for motors (like furnaces, pumps, fridges, and freezers). The right size is based on how much you want to run at the same time, not just the biggest appliance.

Crew Electrical Services can help you define a realistic load plan so the generator system is safe, stable, and practical during an outage.

What appliances should I prioritize during an outage?

Most homeowners prioritize:

• heating equipment or furnace blower

• refrigerator/freezer

• sump pump (if applicable)

• essential lighting

• internet/router and key outlets

From there, you can add convenience loads if the system supports it. Backup power works best when it’s planned around essentials first.

Do generator installs require permits and inspections in Calgary?

In most cases, yes. Generator electrical work is not a “plug it in and hope” situation. Permits and inspections help confirm safe installation and code compliance.

Related: Permits & Warranty FAQ

Can you set up a generator inlet for a portable generator?

Yes. A generator inlet paired with a transfer switch or interlock kit is a clean, safe way to connect a portable generator to your home.

This setup is far safer than running extension cords everywhere, and it helps you power selected circuits more reliably.

Is it safe to backfeed power through an outlet?

No. Backfeeding is dangerous and can energize utility lines, creating a serious risk to utility workers and anyone nearby. It can also damage your electrical system and create fire hazards.

If you want generator power through your panel, it needs approved equipment like a transfer switch or interlock kit installed by a licensed electrician.

Do generators need maintenance or testing?

Yes. Standby generators should be tested and maintained according to the manufacturer’s schedule, and portable generators should be checked before storm/outage season. The goal is making sure the generator will actually run when you need it, not when it’s convenient.

Even a perfectly installed system is only as reliable as the equipment condition.

Need pricing, permits, emergency help, EV chargers, restoration guidance, or home electrical answers? Head back to the main Calgary Electrician FAQ hub.