Estimating Power of Water Waves: What Does it Mean?

[rhule009]

Homework Statement

In my physics syllabus it says

Estimate the power available from a water wave of given dimensions;

What does this mean?

Homework Equations

The Attempt at a Solution

 

[Astronuc]

Each wave represents some amount of energy based on its size, and a number of waves per unit time would represent a power, which is the rate at which energy is produced, delievered or transferred.

Ostensibly, one has wave height (amplitude), wavelength and speed?