Why projects?

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.

Romaine complex Specialized site
Romaine-2 generating station under construction, September 2012

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.

Jean-Lesage generating station (formerly Manic-2)
Jean-Lesage generating station (formerly Manic-2)

Power transmission

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.

Major maintenance was performed on the 120-kV Sainte-Émélie–Provost line, which serves
Saint-Zénon, Saint-Michel-des-Saints and the Attikamek community of Manawan.

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Construction projects