Rate Flex G is for Rate G (base rate) customers who are able to use less electricity during peak demand events or shift their nonessential electricity consumption to outside of those periods. To be eligible for this rate, you must have the following:

  • A Rate G service contract
  • Power demand of under 50 kilowatts (kW)
  • An electrical installation supplied by the main grid rather than by an off-grid system
  • A communicating meter
  • A Customer Space with a valid email address (for peak demand event notifications)

In addition, you must not:

  • Be signed up for any other rate options or for the Demand Response Offer
  • Have canceled a Rate Flex G contract during the previous winter period

Gradual rollout

To provide optimum support to customers, dynamic pricing is being rolled out gradually. Between ... Show more details about gradual rollout
now and November 20, 2022, Rate G customers are invited to sign up for one of the two dynamic rate offerings or stick with their current rate.

For winter 2022-2023, enrollment will be limited to 2,000 business customers. It will be on a first-come, first-served basis.

Compare the rates and sign up

Compare the rates in your Customer Space to find out how much you could save and to sign up for the Winter Credit Option or Rate Flex G.

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Rate Flex G conditions

To sign up for Rate Flex G, you must submit a request through your Customer Space or contact Hydro‑Québec’s customer services by November 20 of the current year.


To be eligible for Rate Flex G, you need to meet the following conditions:

  • You must have a Rate G service contract with a maximum power demand of under 50 kilowatts (kW).
  • Your electrical installation must be supplied by the main grid rather than by an off-grid system.
  • Metering must be done by a single communicating meter installed by Hydro‑Québec.
  • You must have created a Customer Space. For as long as you are signed up for this rate, you must provide a valid email address to which peak demand event notifications will be sent.
  • You must not have canceled a Rate Flex G contract during the previous winter period.
  • You must not be signed up for any other rate options and must not be receiving financial assistance under the Demand Response Offer.

Peak demand events

Peak demand events can take place weekdays from December 1 to March 31, from 6 to 9 a.m. and from 4 to 8 p.m., excluding December 24, 25, 26 and 31, and January 1 and 2, as well as Good Friday and Easter Monday when they fall within the winter period.

  • Maximum number of events per day: 2 events
  • Minimum interval between 2 events: 7 hours
  • Duration of an event: 3 or 4 hours
  • Maximum total duration of events in the winter period: 100 hours

Peak demand event notifications

Hydro‑Québec will notify you by email, at the address provided in your Customer Space, no later than 5 p.m. the day before a peak demand event, indicating the event start and end times. It will also post all peak demand event notifications on its website, www.hydroquebec.com. Hydro‑Québec cannot be held responsible for nonreceipt of a notification due to the failure of systems or equipment belonging to you or your telecommunications provider.


Hydro‑Québec reserves the right to terminate your service contract at this rate if there are recurring problems in gathering hourly metering data.


You can sign up for Rate Flex G for next season once the billing period covering April 1 is over and up to November 20.


You can cancel a Rate Flex G service contract at any time by calling Hydro‑Québec’s customer services. Your contract will then become subject to Rate G (base rate), if it is still eligible, or to any other rate for which it is eligible.

Under no circumstances shall the information provided here replace the Electricity Rates.

More information

To find out more about Rate Flex G, see Section 4 of Chapter 3 of the Electricity Rates [PDF 4.75 MB].