Wave Power Efficiency - Calculating % for Sankey Diagram

[LatexZone]

What do you think the Efficiency of Wave Power is in percentages?

Im trying to figure out the waste of the wave power and then trying to put it in a sankey diagram.

So for example:

25% Efficient
20% Thermal/Heat Energy​

Electrical energy in the TV -

25% Light Energy
30% Sound Energy​

If you get what I mean, that's what I would like to know for Wave Power and if possible, Nuclear Energy.

Thanks

 

[LatexZone]

Anyone?

 

[mgb_phys]

Normally efficency is quoted in terms of the amount of energy extracted form the fuel - it's not clear how you specify the efficency for a wind/wave power.
Do you count the proportion of the energy that is extracted form the wave that hits the machine, or all the waves that pass the site?
So a poor unit that only extracted 0.1% of the energy but was strung across the entire ocean would be better or worse than a single turbine that was more efficent but only intercepted a tiny part of the tidal stream

Really you should be more concerned about the cost of the generated power.