A great rate for residential and farm customers

As shown in the table below on the rate structure, Rate D is made up of a fixed charge, the system access charge, and a variable amount reflecting your energy consumption, divided into two tiers. The first tier is billed at a lower price than the second tier.

More kilowatthours at the lower price

From 1978 to March 31, 2017, the 1st tier was set at 30 kWh a day, or 900 kWh a month. Between April 1, 2017, and April 1, 2019, it was gradually increased from 30 to 40 kWh a day. This is advantageous for consumers whose electricity consumption is relatively low, especially low-income households that use electricity for heating.

Before April 1, 2017: 30 kWh a day au at the lower price

Starting April 1, 2019: 40 kWh a day au at the lower price

The 10 kWh a day that have been gradually added to the 1st tier translate into:

  • Up to 300 kWh a month billed at a lower price
  • Up to almost 35% in savings
What’s a kilowatthour (kWh)?

Structure of Rate D

  • System access charge for each day in the consumption period: 43.505¢
  • Price applicable to energy consumed up to 40 kWh times the number of days in the consumption period (1st tier): 6.509¢/kWh
  • Price applicable to remaining energy consumed (2nd tier): 10.041¢/kWh

Rates in effect April 1, 2023. This table does not replace the Electricity Rates document in any way whatsoever.

How to read your Rate D bill

Understanding rates

Rates generally have three components that reflect the actual costs incurred by Hydro‑Québec to provide electricity service.

System access charge

A fixed amount you pay for electricity service. For Rate D, the amount is expressed in cents per day.


The amount billed for energy varies based on your consumption.

Power demand

For simplicity’s sake, as of April 1, 2017, Rate D contracts no longer include the billing of power demand. Since this rate generally applies to residential and farm customers with a power demand of less than 50 kW, it is now based solely on energy consumption, expressed in kilowatthours.

If you are a Rate D customer and your maximum power demand is between 50 and 65 kW, it may be more advantageous for you to switch to Rate DP.

Learn more about Rate DP

Electricity rates also include other components

Credit for supply at medium or high voltage

Hydro‑Québec grants a supply credit of 0.2579¢ per kilowatthour (kWh) to Rate D customers to whom it supplies electricity at 5 kilovolts or higher.

Hydro‑Québec's rates assume that electricity will be supplied at low voltage. Customers who have equipment to step down the voltage of the electricity they are supplied, or who use electricity at medium or high voltage, represent reduced costs for Hydro‑Québec. In return, they are granted a monthly credit.