Current and future needs
Hydro-Québec is responsible for meeting Québec’s energy needs.
Quebecers are major consumers of electricity, second only to Icelanders and followed by Norwegians. These consumption levels are explained by the presence of many major industrial consumers and the use of electric heating.
Total net energy consumed in Québec in 2009
It is estimated that 77% of Québec households use electricity as their main energy source for heating and that over 90% use it to heat water. Approximately 45% of the electricity demand at winter peak is for these two needs.
Share of electricity consumption, 2009
New residential connections
Even though the economic context has had an effect on the total demand for electricity, the number of new connections continues to increase. Since 2003, Hydro-Québec has been connecting an average of 50,000 new customers per year. During the period from 1995–2001, the average was 22,000 connections annually.
However, it’s possible to contain the growth in demand through energy efficiency. In 2015, cumulative energy savings amounted to 8.8 TWh, which is equivalent to the amount of power used by 500,000 households, and is 10% higher than the target initially set by the Québec government.
Examples of projects
Power generation: Construction of the Romaine complex
This new hydroelectric complex will be located north of the municipality of
Havre-Saint-Pierre, in the Côte-Nord region. It will be made up of four hydropower generating stations and generate 8.0 TWh. Construction work began in 2009 and will continue to 2020.
Power transmission: Construction of the new Saint-Bruno-de-Montarville substation
This new transformer substation in Montérégie will help meet the growing demand for electricity and lighten the loads on the Brossard, Chambly and Saint-Basile substations.All projects Specialized site
Facility maintenance and refurbishment
Electricity supply relies on numerous facilities and equipment throughout Québec: dams, dikes, generating stations, transmission lines, transformer substations, distribution lines. These facilities and equipment must be maintained in good condition. When they age, they must be replaced or refurbished.
Hydro‑Québec is continuing its efforts to manage these facilities efficiently while meeting needs in terms of security of supply, availability and long-term operability.
Hydro‑Québec implements a condition-based maintenance strategy that uses new technologies to monitor equipment condition and performance. Condition-based maintenance means managing maintenance operations on the basis of the actual condition of the equipment, thereby reducing equipment downtime and maintenance costs.
In addition to this maintenance work, the company carries out refurbishment projects to extend the service life of its facilities.
Examples of projects to maintain facilities and equipment in good condition
Power generation: Rehabilitation work to optimize the performance of
Jean-Lesage generating station
In the Manicouagan region, the overhaul of a generating unit at the Jean-Lesage facility (formerly Manic-2) is moving ahead as planned, with commissioning slated for 2013. This project will yield approximately 30 MW of additional capacity.
Hydro-Québec’s transmission system is moving toward an increasingly automated, smart grid. Among other improvements, the integration of digital technologies and advanced protections and controls increases remote maintenance capabilities.
Hydro-Québec TransÉnergie is a world benchmark in the design, operation, maintenance and simulation of large power grids.