Thunder Bay Hydro Coporation

Serving the City of Thunder Bay with electricity.

Contact Us

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MAIN PHONE NUMBER (807) 343-1111

Customer Service

Phone: (807) 343-1111 Press 1
Fax: (807) 343-1044 

Online self-serve Forms

If you need to confirm a payment to avoid disconnection, you may use our Confirm a Payment form.


Monday to Friday: 8:30 am to 4:30 pm

After Hours Emergency

To report power outages and line problems within the City of Thunder Bay only after 4:30 pm and on weekends:

Operations Centre Control Room 
(807) 343-1002

You may also use our Online form to Report an Issue.


Customer Service is located in the Whalen Building located at 34 N. Cumberland Street.  Engineering Services is located at our Operations Building at 37 Front Street.


Please see our Careers Page.


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Like us on Facebook! for regular updates, outage notices and contests.

Follow us on Twitter for updates during major power outages or electrical emergencies.

Locates Services

All Locates requests should first contact On1Call at 1-800-400-2255 or via their website. Once you have a ticket number, if you need to speak to Thunder Bay Hydro locates, call 343-1111 press 3.

Public Relations / Media

Please contact our Communications and Events Coordinator

Phone: (807) 343-1141
Email: Email Communications

Administration Offices

Thunder Bay Hydro 
34 North Cumberland Street 
Thunder Bay, Ontario
P7A 4L4

Phone: (807) 343-1111 Press 1

Power Systems Building

37 Front Street
Thunder Bay, Ontario
P7A 8B2

Phone: (807) 343-1111 Press 4


Contact information for Senior Management is available on the Leadership page.

Outside City Limits

Electricity Customers outside the city of Thunder Bay are serviced by Hydro One.