Read the article and don't see what it has to do with harness wave energy, it was solar
energy being stored. Interesting, but can't imagine that would store much energy.
We can already store lots of solar
energy by heating
, and using mirrors you can heat up oil
to high temperatures and store it in tanks
to use later.
For wave energy, there was a recent drone that used the bobbing up and down action to generate power along with its solar panels
, basically just flaps in its keel
, could do the same for a sailboat, but would think it would slow down your forward progress with the water resistance it creates, perhaps at anchor
, but my guess is the amount of energy is too low to justify more stuff to maintain. Tides however, could be tapped just using your prop if connected to an electric