ESA Warns of Electrical Hazards Posed by Expected Flooding in Northern Ontario

ESA

April 19, 2023

With warm temperatures across the province, the Electrical Safety Authority (ESA) is warning Northern Ontario residents of heightened risk of electrical hazards posed by expected flooding in the area.

“Warmer temperatures could trigger snowmelt flooding,” said Serge Laflamme, general manager, Electrical Safety Authority. “The safety of the public is our top priority. There is an increased risk of electric shock when water makes contact with electrical systems that could result in serious injury or death.”

ESA reminds residents that water-damaged electrical outlets and appliances pose a risk of electrical shock. Following these important steps could save your life, or the lives of first responders and utility workers in your area. 

To help safeguard your home from expected flooding:
  • Unplug and move electrical appliances and devices out of your home to an area above the expected level of floor water. Do not reuse products if they have been in contact with flood water;
  • Prepare the outside of your home by unplugging and storing extension cords indoors above the potential flood line; 
  • If you need to evacuate your home ahead of flooding, disconnect the power to your home by ensuring that the main switch by your electrical panel is left in the “off” position before you go; and
  • Watch out for downed powerlines in flood-affected areas. If you see one, stay back 10 metres and call 9-1-1 and your local electric utility to report it.
If you have water contact or damage to your electrical system, follow these four steps:
  1. If water in your basement has risen above the electrical outlets, baseboard heaters, furnace or electrical panel, DO NOT enter the basement until the power has been disconnected by the local electric utility.
  2. If your electrical system has been affected, your utility may not be able to restore power to your property until damage has been assessed and necessary repairs have been made.
  3. ESA strongly recommends you hire a Licensed Electrical Contractor to evaluate your home’s electrical system to determine if it is safe to have the local electric utility restore power to your home. You can find a Licensed Electrical Contractor at www.esasafe.com.
    • The contractor will file for a permit with the ESA so there is a record of the work;
    • When the contractor completes the work, the contractor will work with ESA to confirm the installation is in safe working order and that power can be reconnected;
    • ESA will inform the utility that it is safe to reconnect; and
    • The utility will reconnect when it is able to do so.
  4. After the work is done, ask the contractor for a copy of the ESA Certificate of Acceptance for your records and insurance.
Portable Generators 

Portable generators can provide security and comfort during power outages. However, they can cause electrical shock and fire hazards if connected or used incorrectly.
Follow these tips to use your generator safely:

  • Never use a generator indoors. They produce fatal carbon monoxide fumes, so set them up outside away from windows, doors or vents to your house or your neighbour’s house;
  • If you’re buying a generator, make sure it has a certification mark from an approved certification agency;
  • Don’t attach a portable generator directly to your home’s electricity system. It could cause power to flow back into the power grid and electrocute you or a utility worker, or damage the system; and
  • If you want to permanently connect your generator to your home’s system, you need to file a permit with ESA. A Licensed Electrical Contractor must make the connection.

ESA reminds all homeowners and businesses, including restoration companies, to ensure that the power has been disconnected to the entire property, which may include battery storage, solar or backup generators, before entering to avoid shock and electrocution. This includes flooded basements and outbuildings that contain electrical equipment or are connected to the electrical system.

To learn more about the impacts of flooding and electricity, click here.

Source

Related Articles


Latest Articles

  • ESA 2025 Annual Licence Holder Meeting

    ESA 2025 Annual Licence Holder Meeting

    December 8, 2025 This year marked ESA’s 20th Annual Licence Holder Meeting — a milestone celebrating two decades of collaboration, innovation and safety leadership made possible by Ontario’s licence holder community. The meeting was held on Wednesday, November 26, 2025 Agenda Highlights Watch a recording of the 2025 Licence Holder Meeting. Read More…

  • BC Hydro’s Updated Business Energy-Saving Incentives, Limited Time Bonus Offer

    BC Hydro’s Updated Business Energy-Saving Incentives, Limited Time Bonus Offer

    December 8, 2025 Get funding from BC Hydro for businesses upgrading eligible equipment with energy-efficient models. Funding rates vary depending on the equipment being upgraded, with past participants receiving an average of 30% for upfront costs. Incentives are available for: Bonus offer BC Hydro is currently offering a 30% bonus incentive on all business energy-saving incentives projects… Read More…

  • Mastering Advanced Bidding Strategies in Electrical Contracting

    Mastering Advanced Bidding Strategies in Electrical Contracting

    December 1, 2025 By Melvin Newman, Patabid CEO & Ian Paterson, Patabid Client Success Manager and journeyman electrician with 30+ years of experience In the competitive world of electrical contracting, knowing how to estimate electrical jobs effectively can make the difference between winning profitable projects and watching opportunities slip away. For electrical contractors, mastering advanced… Read More…

  • Why Choosing the Right USB Charger Matters

    Why Choosing the Right USB Charger Matters

    December 1, 2025 Not all USB Chargers are Created Equal As the number of devices used daily increases, so does the need for a charger that delivers safe speeds and maximum charging potential. A high-quality USB charger delivers efficient charging without risk of damage, but the sea of USB chargers and outlets available on online… Read More…


Changing Scene

  • BC’s Bill 20 – The Construction Prompt Payment Act Receives Royal Assent

    BC’s Bill 20 – The Construction Prompt Payment Act Receives Royal Assent

    December 8, 2025 As the BC Legislature wraps up the final week of the Fall session, BCCA is very pleased to see Bill 20 receive Royal Assent and officially become the Construction Prompt Payment Act, SBC 2025, c 24. This marks a significant milestone for BC’s construction sector. This achievement reflects decades of consistent, principled… Read More…

  • Federal Government Announces New Measures to Support Steel and Lumber

    Federal Government Announces New Measures to Support Steel and Lumber

    December 8, 2025 The world is changing rapidly. The United States, the world’s largest economy, is fundamentally reshaping all its trade relationships, causing major disruption and upheaval for Canadians. It is time to transform our economy from one that is reliant on a single trade partner to one that is stronger, more self-sufficient, and resilient… Read More…

  • Skills Ontario Celebrates the Expansion of Trades & Tech Truck Program

    Skills Ontario Celebrates the Expansion of Trades & Tech Truck Program

    December 1, 2025 Skills Ontario is expanding its fleet of Trades & Tech mobile unit thanks to support from the Ontario Government. The government announced this morning it’s investment in Skills Ontario to expand experiential opportunities for Ontario’s future workforce.    “Ontario’s future relies on a strong, skilled workforce,” said David Piccini, Minister of Labour, Immigration,… Read More…

  • BC’s Canadian Mutual Recognition Agreement aims to Facilitate Interprovincial Trade

    BC’s Canadian Mutual Recognition Agreement aims to Facilitate Interprovincial Trade

    December 1, 2025 A new agreement signed by all provinces, territories, and the federal government will break down interprovincial trade barriers, making it easier for B.C. businesses to sell products across Canada, and for people to buy Canadian-made goods.   “When threats to Canada’s economic security land at our doorstep, we’re at our best when we work together as… Read More…