La Trenche Generating Station is a hydroelectric power plant on the Saint-Maurice River and within La Tuque, in Upper-Mauricie, in the administrative region of Mauricie, in Quebec, in Canada.

This power station was put into service immediately.

It is the central sixth to block the river from its mouth.

[clarification needed][citation needed] Hydro-Québec acquired La Trenche power from the Shawinigan Water & Power Company.

Its retaining capacity is 6 million cubic meters of water at the outlet of Tourouvre lake.