The price applicable to additional electricity, which covers both power and energy, varies month to month and is based on Hydro‑Québec Distribution’s marginal supply costs. It cannot be lower than 5.59¢ per kilowatthour when the option applies to a Rate DP, M or G9 contract.
Depending on load management requirements and power system availability, Hydro‑Québec reserves the right to prohibit consumption of additional electricity on two hours’ notice.
Hydro‑Québec will notify you of the price of additional electricity seven business days before the beginning of each calendar month. This price will remain fixed for the entire monthly period.
Calculation of billing amount
Energy billed as additional electricity is calculated in 15-minute blocks.
- Consumption that exceeds the reference power is billed at the applicable price for additional electricity.
- The reference power and corresponding energy are billed at the prices and conditions in effect for Rate DP, M or G9.
How to sign up for this rate option
You must submit a written request to Hydro‑Québec at least 15 business days before the start of the first consumption period for which you would like to avail yourself of the option.
Subject to installation of the appropriate metering equipment, agreement on the reference power and Hydro‑Québec’s written approval, the option takes effect at the beginning of the consumption period following the period during which Hydro‑Québec receives your written request.
Thereafter, you must submit a written request to Hydro‑Québec at least five business days before the start of any consumption period to which you would like the option to apply.