About wind power
Wind power is generated by the force wind exerts on the blades of a turbine causing them to rotate at a speed of 10 to 20 revolutions per minute. The wind turbine only begins turning when the wind reaches a speed of 12 km/h. The generator connected to the blades then converts mechanical energy into electrical energy, which is transported to the substation by a network of underground cables. At the substation, the electricity’s voltage is increased before being distributed to consumers via the network. In spite of its impressive height of approximately 150 m, a wind turbine is quite quiet: from 500 m away, its noise level is comparable to a calm library.
Our projects
In both Quebec and Vermont, Énergir—via Green Mountain Power and other partners—is developing wind power projects. These initiatives not only help increase electricity supply but also stimulate regional economic development.
Seigneurie de Beaupré wind farms – Québec
The Seigneurie de Beaupré wind farms are among the largest of their kind in the country. Through a 50/50 joint venture between Boralex and Beaupré Éole, which is indirectly owned 51% by Énergir and 49% by Énergir Développement inc. Énergir owns three wind farms: Farms 2 and 3, commissioned at the end of 2013, and Farm 4, commissioned at the end of 2014. Together, these farms comprise 154 wind turbines totalling an installed capacity of 340 MW and generating enough electricity to satisfy the annual consumption of more than 65,000 Québec homes.
Searsburg wind farm – Vermont, U.S.
The Searsburg wind farm is owned by Green Mountain Power, a subsidiary of Énergir. This farm has an installed capacity of 6 MW, enough energy to power the equivalent of 2,000 homes. The wind farm also serves as an education resource for wind generation in cold climates and environmentally sensitive regions. When construction was completed in 1997, Searsburg became the largest wind power facility in the eastern United States.
Kingdom wind farm – Vermont, U.S.
In 2012, Green Mountain Power, an Énergir subsidiary, built 21 wind turbines along the ridgeline of the Lowell Mountain Range, working together with Vermont Electric Coop. This particularly windy site generates enough electricity to power 24,000 homes.
Imagining energy differently
We believe that the future of energy lies in diversity.
That’s why Énergir (directly and through its subsidiaries) is actively involved in developing renewable natural gas and liquefied and compressed natural gas, as well as solar, wind and hydroelectric projects.
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