If your farm is equipped with one or more dual-energy systems and your electricity service contract is eligible for Rate D, DP or DM, you could benefit from an overall lower rate, Rate DT, if you meet the eligibility criteria. Under Rate DT, pricing varies according to the temperature.
New in 2018: An even more advantageous rate
On April 1, 2018, the Régie de l’énergie approved a decrease in Rate DT electricity prices. This means you’ll save even more with your dual-energy system in comparison with Rate D.
Rates generally have three main components that reflect the actual costs incurred by Hydro‑Québec to provide electrical service.
The fixed charge, expressed in cents per day for this rate, is a set amount to be paid for the electricity service itself.
As the amount of energy consumed varies, the amount billed varies as well.
Hydro‑Québec must be able to meet its customers’ maximum power demand at all times. Even if power demand is variable and consumption is sometimes minimal, Hydro‑Québec’s rates still have to cover the cost of operating and maintaining the power system. For this reason, it’s important that rates for large electricity consumers include billing for maximum power demand. This reflects the costs associated with meeting power demands of varying size and duration.
Calculating billing demand
Power demand is another component of your electricity bill. Discover how it factors in.
If the power demand exceeds 50 kW (or 4 kW times the multiplier), the demand charge is applied to the greater of these two billing demand values:
For Rate DT, the minimum billing demand is set at 65% of the maximum power demand during a consumption period that falls wholly within the winter period included in the 12 consecutive monthly periods ending with the consumption period in question.
Eligibility criteria for Rate DT – Dual energy for farms
When a distribution service loop serves a farm or both a farm and a dwelling, Rate DT applies if the following conditions are met:
This distribution service loop must supply at least one dual-energy system.
The capacity of each dual-energy system in fuel mode must be sufficient to heat the premises in question. The energy sources of the dual-energy system must not be used simultaneously.
The installed capacity of each dual-energy system must be no less than 50% of the installed capacity of the premises it serves.
Each dual-energy system must be equipped with an automatic switch permitting transfer from one source of energy to the other.
The automatic switch must be connected to a temperature gauge supplied and installed by Hydro‑Québec in a location and under conditions determined by Hydro‑Québec. The gauge indicates to the automatic switch when a change of operating mode is required in view of the outdoor temperature. The fuel mode is used when the outdoor temperature is below −12°C or −15°C, depending on the climate zones defined by Hydro‑Québec.
You may also use a manual switch to change from one source of energy to the other.
The installed capacity of all premises supplied by this distribution service loop that are not served by a dual-energy system must not exceed 10 kilowatts.
What is the multiplier?
Under Rate DT, a multiplier is applied to the fixed charge and the base billing demand.
The multiplier is generally equal to 1, except when there is bulk metering that includes the consumption of the dual-energy system and when the contract was subject to Rate DT or eligible for Rate DM on May 31, 2009.
If the multiplier is not equal to 1, it is determined by the type of residence, as follows:
Apartment building or community residence consisting of dwellings:
Number of dwellings in the apartment building or community residence;
Community residence consisting of dwellings and rooms:
Number of dwellings in the community residence, plus
1 for the first 9 rooms, plus
1 for each additional room
Rooming house or community residence with 10 rooms or more:
A dual-energy heating system uses two energy sources:
electricity as the main source, i.e., when the outdoor temperature is above or equal to −12°C or −15°C, depending on the climate zones defined by Hydro-Québec, and
fuel as a source of backup heating, when the temperature drops below that level.
A set amount, expressed in dollars per month or cents per day depending on the rate, to be paid for the electricity service itself.
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).
Period from December 1 through March 31 of the next year, inclusive.
Period from April 1 through November 30, inclusive.
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 demand
Maximum power measured during a consumption period. It is the higher of the following two values: real power in kilowatts (kW), or a percentage (90% for domestic rates and small- and medium-power rates, or 95% for large-power rates) of the apparent power in kilovoltamperes (kVA).
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.
Minimum billing demand (minimum demand)
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.
For all rates except Rate L, the minimum billing demand is automatically determined based on the previous winter’s maximum power demand.
Rate L customers must set their own minimum billing demand, called “contract power,” based on the amount of electricity they expect to use.