About 40 years ago, after the Québec government launched the La Grande complex project, Hydro-Québec created its environment department. Since then, the company has conducted a wealth of environmental studies covering topics such as aquatic environments, wildlife species and the human environment. These studies, research projects, methods and technologies have led to numerous publications, all available through our Environment & Communities Documentation Centre.

Summaries of environmental knowledge

Hydro-Québec as produced summaries of its environmental activities related to electricity generation and transmission. Objective: to increase awareness of its achievements to date and, above all, of the rationale behind the selection, acceptance, construction and operation of its facilities.

View our summaries

Mercury and reservoirs

When a reservoir is impounded, the mercury in the soil is altered and circulates in the aquatic environment. Result: Fish mercury levels increase, taking from 10 to 35 years to return to levels observed in natural environments.

Learn about our research program and our consumption guides

GHGs and reservoirs

When a reservoir is impounded, the organic matter decomposes and GHG emissions increase. After reaching a maximum the first year, the emissions diminish quickly and, in under 10 years, stabilize at the levels given off by natural environments. Finding: hydropower generation emits 35 times less GHGs than natural gas generation and 70 times less than coal-fired power.

Consult our research findings

Hydro projects and fish

All new hydro projects entail environmental studies, mitigation and compensation measures, and several years of follow-up studies. The environmental issues and fish communities involved differ for each project.

See our studies on fish communities

Environment & Communities Documentation Centre

For over 40 years, Hydro-Québec has contributed substantially to the advancement of environmental knowledge.

Its studies, research, innovative methods and technologies have been described in numerous publications.

The Environment & Communities Documentation Centre makes this knowledge available to you.

The Centre has more than 25,000 items in its collection, and some 10,000 of them deal with environmental studies and research written by or for Hydro-Québec. In addition to environmental impact assessments, there are specific studies on mitigation measures, environmental follow-up, some species of wildlife, and more.

Documentation Centre Catalogue

The catalogue is available online. More than 1700 reports in PDF format are available. The catalogue is updated on a daily basis.

Documentation Centre

Open to the public by appointment

2nd floor, 75 René-Lévesque Blvd. West, Montreal



Items may be borrowed as interlibrary loans through another library (municipal, college, university, etc.)