East Toba River (123MW) and Montrose Creek (73MW) are two run-of-river hydroelectric plants 18 km apart, they have operated since in 2010 with a combined capacity of 196 MW and generate an average of 720 GWh of electricity annually, which is contracted to B.C.

Alterra received an Energy Purchase Agreement from BC Hydro to construct the Upper Toba facility.

[5] In 2013 Alterra also received an Energy Purchase Agreement from BC Hydro to construct the 62MW Jimmie Creek facility.

[6] In 2016 Alterra Power Corp. announced that the Jimmie Creek facility had achieved its full output of 62 MW.

[12] In 2019 Alterra sold off its shares in HS Orka to Macquarie Infrastructure and Real Assets (MIRA).