I knew you could be relied upon to come up with some maths..
The device seems to be a floating box, with a dynamo/flywheel and a chain/cable to a heavy block..
The box floats over a wave, causing the pull on the flywheel on the upstroke and will obviously have a frictionless powered "Rewind" for when the box slides down the back side of the wave..
Ignore the maths of the energy side of things - look at the maths of the device..
Assuming there is NO WEIGHT
in the FLOAT and flywheel assembly, and the maximum displacement will be
6.25xHeight (say GG's 1/2M) = 3.125M2 or approx 3100 Kg of potential... "LIFT" ( 1kg / lTR )
So, the concrete block will have to be at least double that if it is not to drag ( NO - I have never designed a mooring ) and I would actually suspect that it would need to be more like 4 times, so I would like to see someone install something like a 2.5SqM float and a 12ooo-Kg moorings, from the back of their tinny
Assuming GG's maths is correct, the "Power" of 2kW, will only exist at the peak of the wave and thus about every 10Secs.. During the rest of the time, the Fly-Wheel will be slowing, waiting to be kicked along again..
So if my geriatric maths is vaguely correct, I wonder if you might get about 200W constant power...
The FLOAT will not be ideal.. it WILL have to sink a bit to exhibit pull on the tether..
( I could not even try and imagine what the lost power during sinking would be...
I have to say that I wonder if the inventor also came up with the Solar Cube..
Sorry but once bitten-twice shy for my funds.. No doubt there will be many who will kick the can, because they see the waves and just accept that "There is POWER in them thare hills"
now , did I get be basic maths right..
Now what you could do is design a Bee-Hive, that each time a wave passes, it squeezes honey from successive sections..