Tidal energy is generated by the rise and fall of sea levels caused by the gravitational pull of the moon and the sun. The kinetic energy of moving water can be captured by turbines placed in coastal channels or estuaries.
The amount of extractable power depends primarily on the tidal range (the vertical difference between high and low water), the length of the coastline that can be harnessed, the density of seawater, and the efficiency of the conversion system.
A simplified estimate of the potential power (P) for a straight coastal segment is given by the equation below, which assumes a uniform tidal prism along the length.
What is headtidal energy?
How does tidal range affect headtidal energy potential?
What factors determine the efficiency of a tidal energy system?
Can headtidal energy be harnessed in any body of water?
What are the environmental impacts of tidal energy generation?
Results are for informational purposes only and do not constitute professional advice.
