To maximize your savings with Rate DT, you need to use the most economical source of energy for heating, based on the outdoor temperature and the price billed. At present, it is advantageous for your dual-energy heating system to use electricity when the outdoor temperature is equal to or higher than -12°C or -15°C (depending on where you live), provided the equivalent price of oil is more than $0.37/L.
However, when it is very cold, heating with oil can be cheaper, provided the price is less than $2.16/L. On an annual basis, customers with Rate DT (for dual-energy systems) save money compared to Rate D customers, except during extremely cold spells when prices are higher. While the cost of Rate DT electricity is higher than Rate D during these periods, Rate DT is cheaper overall for almost all customers who have it.
For more information, visit the Rate DT section on our Web site.
* Calculated on the basis of energy prices at Rate DT as of April 1, 2015, and a dual-energy system efficiency rate of 75%.
** Given an estimated cost of oil: $0.76/L, based on the Montréal average, from August 2015 to January 2016. Source: Régie de l’énergie, Relevé hebdomadaire des prix du mazout léger, week of January 11, 2016.