Add an address

You can add an address by logging into your Customer Space. To do so, you’ll need the full street address of the premises you would like to add, including the postal code.

*Large-power customers: Contact your commercial officer to create your Customer Space.

Rate L or LG customers (5,000 kw or more)

Service charges

Please notify us no earlier than six months before taking possession of the new service address.

There will be a $20 administration charge (plus GST/QST) for creating a new electricity service contract if you’re already a Hydro-Québec customer. You’ll receive confirmation once the new address has been added.

Under the bylaws in effect, Hydro-Québec may require a payment guarantee as a condition of electricity service if your company has defaulted on its payments in the last 24 months.

The deposit amount corresponds to the highest estimated billing amount (power and energy) for two consecutive months.

Change your arrival or departure date

You’ve informed us of your moving date only to find your plans have changed? You can modify the date by logging into your Customer Space.

If your annual billing is under $100,000

You can also make your request by calling us at 514 385-7252 (Montréal) or 1 888 385-7252 (everywhere else).

Business hours:
We can be reached from 8 a.m. to 8:30 p.m. Monday to Friday and 9 a.m. to 5 p.m. on weekends.

Request a new contract

If your annual billing is over $100,000

You can also make your request by e-mail at

Questions? We can be reached at 1 800 463-9900 from 8:30 a.m. to 4:30 p.m., Monday to Friday.

Request a new contract

If you are billed at Rate L or LG

Please contact your commercial officer.

Goods and Services Tax

Québec Sales Tax