Power Transmission Projects

Connecting the Romaine Complex to the Transmission System

A 1,500-MW complex on the Rivière Romaine is presently under study. Hydro-Québec TransÉnergie is conducting a study on the structures required to integrate the output of the generating stations, which are presently at the draft design stage and require separate applications for authorizations, into the power system.

The project includes:

• Building some 500 km of transmission lines, designed for 315 kV and 735 kV but operated at 315 kV;
• Building a 161-kV line to connect with the regional network;
• Building new switchyards at the generating stations;
• Altering and adding equipment in existing facilities.

If the draft design studies confirm the profitability and environmental acceptability of the Romaine hydroelectric development project, and if the project is well received by local communities, Hydro-Québec TransÉnergie may file an environmental impact study with government authorities in 2009 to obtain authorizations for the transmission line.

Once the hydroelectric power project has received the necessary approvals, Hydro-Québec TransÉnergie will schedule land clearing and line construction activities in relation to the commissioning schedule for the Romaine complex generating stations.