ok i was sat down filling the nephews paddling pool up today and noticed the water circling as it pumped in and it got me thing to what was mentioned to me in another thread i done in this section about a water turbine.
and it got me thinking by using a few 1 way valves and the power of wave movement some hose a weighted float and a adapted hydrolic bar you could very easily power a water turbine perminantly.
place the weighted float on the top so as the wave comes it lifts the hydrolic bar up sucking water in the one way valve then as it goes past it forces the water down and through the bottom valve with the weight of the float pushing the water up to the turbine through the hose and forcing it to turn and create energy and then as the water is released have another water wheel to spin as the water is released.