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A dam-like structure that captures the potential energy generated by the height difference between high and low tides.

A theoretical concept where a long dam (or series of dams) is built perpendicular to the coast, with the potential to capture energy from tidal currents on a grand scale.

Energy derived from the kinetic energy of marine currents, which are driven by tides and wind.

The harnessing of energy from the natural rise and fall of ocean tides to generate electricity.

A layer in a body of water where temperature changes more rapidly with depth than it does in the layers above or below.

A wave power generation technology that uses the motion of floating, articulated structures to generate electricity.

A machine that extracts energy from the kinetic flow of tidal waters, similar functionally to a wind turbine.

The time it takes for two successive wave crests or troughs to pass a fixed point.

The vertical distance between the crest (the highest point of the wave) and the trough (the lowest point).

A method of generating electricity by using the osmotic pressure difference between fresh water and salt water to produce a pressure that can drive a turbine.

The number of waves passing a fixed point per unit time, usually measured in hertz (Hz).

Energy captured from surface waves or from pressure fluctuations below the surface.

A process that leverages the temperature difference between cooler deep and warmer shallow or surface seawaters to generate electricity.

Power generated from the differential in salt concentration between fresh water and sea water, often using osmosis.