Innergex, the Canadian renewables operator that has made plain its intention to push into the US wind market, has offered to buy smaller compatriot Alterra Power in a cash-and-stock deal worth C$1.1bn ($860m).

Quebec-based Innergex owns a 1.1GW portfolio of mostly hydro and wind projects, located almost entirely in Canada and France. In contrast, Vancouver-based Alterra has focused heavily on the US in recent years.