Rate DP generally applies to domestic use, that is, use in a home, when the maximum power demand has reached 50 kW or more at least once during the last 12 monthly periods. The electricity is metered separately in most cases. Bulk metering applies in the case of apartment buildings built after April 1, 2008. This rate also applies to farms.
Provided the maximum power demand reached 50 kilowatts (kW) or more at least once over the past 12 monthly periods, Rate DP also applies in the following cases:
Up to April 1, 2017, Rate D applied to the vast majority of residential and farm customers, regardless of their electricity use.
April 1, 2017, saw the introduction of a new rate—Rate DP—for residential and farm customers with larger loads. Rate DP is similar to Rate D, which, before April 1, 2017, provided for billing of power demand in excess of 50 kW. The structure of Rate DP will continue to evolve in coming years to better reflect the needs of these customers.
To find out more about Rate DP, consult Section 3 of Chapter 2 of the Electricity Rates [PDF 2.35 MB].
Method of measuring energy consumed with a separate meter for each residential or commercial unit in a building.
Method of measuring energy consumed with a single meter instead of separate meters for an entire multiunit commercial or residential building. The building owner is responsible for dividing the costs between the occupants.
A set amount, expressed in dollars per month or cents per day depending on the applicable rate, that the customer must pay for the electricity service.
Beginning April 1, 2019, the term fixed charge was replaced with system access charge.
Power used by electrical equipment over a given period of time. Expressed in kilowatthours (kWh), energy is calculated as power, expressed in kilowatts (kW), multiplied by the time during which the power is used, expressed in hours (h).
The formula for energy is as follows: energy (in kilowatthours) is equal to power (in kilowatts) multiplied by duration of use (in hours).
Energy (kWh) = power (kW) x time used (h).
Period from December 1 through March 31 of the next year, inclusive.
Period from April 1 through November 30, inclusive.
Difference in electrical level between two points, expressed in volts (V).
Total amount of electricity supplied at a given time. Expressed in kilowatts (kW), power is the combined effect of voltage, expressed in kilovolts (kV), and current, expressed in amperes (A).
Maximum power measured during a given period. It is the higher of the following two values:
These power demands are determined for integration periods of 15 minutes.
Amount of electricity consumed in a useful manner to operate equipment, such as a motor or a heating or lighting system. Real power is expressed in kilowatts (kW).
Amount of electricity that Hydro-Québec supplies to a customer, expressed in kilovoltamperes (kVA). When it is used, apparent power breaks down into real power (kW), which runs devices, and reactive power (kVAR), which produces magnetic fields and which is not useful power for the customer.
The minimum amount of power that the customer must pay for each consumption period, regardless of electricity use. The threshold is set so that you pay your share of the costs Hydro-Québec incurs to meet your power needs at all times. The minimum billing demand is determined by the conditions of each rate, as indicated in the Electricity Rates.
Low voltage: Voltage of 750 V or less.
Medium voltage: Voltage of more than 750 V, but less than 44 kV.
High voltage: Voltage of 44 kV or more.
Electricity rate effective April 1, 2022.