The portfolio consists of four early-stage wind farm sites located on Banks Island, Porcher Island and McCauley Island.

The four wind farm sites have an estimated generation capacity of over 1,000MW, and the meteorological towers at the sites collect two to six years of wind data.

The sellers will receive royalty payments during the operations phase of the wind power projects.

Alterra CEO John Carson said, "This transaction further positions us to play a major role in B.C.’s clean energy future. We look forward to advancing and ultimately building these wind projects as a part of the continued growth of Alterra and British Columbia."