Quite possibly, but why? Main source of it's motion would be tides. Works to harness tidal energy are already advanced. And without artificial restrains, you have oceanic currents near the equator to draw from. All you need to do to have it in your world is to make it cheaper. For that, you will rather remove costs than add them. So, no pipe, no channel, just get the energy.

Quite possibly, but why? Main source of its motion would be tides. Works to harness tidal energy are already advanced. And without artificial restraints, you have oceanic currents near the equator to draw from. All you need to do to have it in your world is to make it cheaper. For that, you will rather remove costs than add them. So, no pipe, no channel, just get the energy.