Here’s a project invoking ocean wave energy off the cost of Oregon in the Pacific Northwest of the U.S. I understand that getting a permit to put an energy-extracting device into moving water is anything but a slam dunk, so the fact that these guys received such approvals must be something of a feather in their hats. But having a permit to do something does not mean that doing that thing is a good idea.
I’ve seen many dozens of ideas in this arena, but the bottom line is that I’m not a huge fan. I like to reduce things to their most basic simplicities. The kinetic energy in ocean waves came from the kinetic energy in the wind, which in turn came from the radiant energy from the sun. The closer we can get to the source (the sun), the more efficient and ultimately cost-effective this whole clean energy enterprise is going to be. When we have PV at $0.56 per Watt, I would think the ocean wave people would be having trouble getting investors on board.
As always, I invite comment; if I’m off base here, perhaps someone can correct me.