This is the second in this series of posts on oceanic solutions to our climate change crisis.
This post is on Tidal Power, that is, hydroelectric power plants that use ocean tidal currents to generate power. This should not be confused with wave power. Although many support the latter, I believe it will, at best, be a limited niche-solution used to support remote facilities.
Most sources of tidal power tend to be very predictable. The idea is simple, first, tides rise and fall predictably, relentlessly driven by the gravitational pull of the moon. Those traits combined make the tide an attractive proposition for powering the grid. The sun doesn't always shine; the wind doesn't always blow, but with tidal, we can tell you how much we will be generating two minutes past 3 in the morning a month from now or five years from now.