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Tidal Energy By: Alex Pugh-Powanda, Ramon Lopez, Charles Henley, Jefrey Moises How energy is produced • Tidal energy is produced through the use of tidal energy generators. These large underwater turbines are placed in areas with high tidal movements, and are designed to capture the kinetic motion of the surging ocean tides to produce energy. How energy is harnessed • A tidal barrage is created at the mouth of a river or other choke point that connects to the ocean. • In flood tidal power generation below the water level there are opening in this barrage that have turbines in them • These turbines are powered when the tide goes in or the water level rises. Advantages • Once you’ve built it, tidal power is free • It produces no greenhouse gases or other waste • Requires no fuel • Reliably produces electricity • Maintenance isn’t costly • Tides are predictable • Inexpensive turbines that don’t harm the environment Disadvantages • There are a limited amount of places for these tidal barrages. • When the tide is moving correctly, it only produces power for 10 hours each day. • When built across an estuary, it affects the animals – Birds rely on the tides to move mud for feeding – Fish use them to migrate How tides work • The moons gravitational force pulls on the ocean water • When the moon is right above one side of the earth or the opposite side, the area will experience high tide. Bay of Fundy • Located on the Atlantic coast of North America between Canada and the U.S. • It has one of the highest vertical tidal ranges in the world. • A good place for tidal turbines because the tides are very strong and be used to produce a large amount of energy.
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