FTA: > At Orca, this task is accomplished with a blast of heat, which is sourced from a nearby hydrothermal vent What do they do if there's no hydrothermal ve

FTA: > At Orca, this task is accomplished with a blast of heat, which is sourced from a nearby hydrothermal vent What do they do if there's no hydrothermal vent ? Is the solution still efficient with other energy sources (for example a wind turbine) ?