Tidal Energy Energy of Waves

What is Tidal Energy?

• Tides are waves heading towards or away from the shore

• Generating energy from wave motion

How does it work?The tide flows in two directions under the water

How does it work?When the tide flows forward, the propellers turn

How does it work?When the tide flows backwards, the propellers

turn in the opposite direction

How does it work?The faster the

propellers turn, the more energy is created

The generator turns the motion energy into useable electricity

How does it work?Here is a video showing how it works

YouTube: How Tidal Energy Works

Where is it being used?La Rance, France

Annapolis, USA

Reasons to Use ItCosts nothing to create energy

Consistent wave patterns

Renewable

Doesn’t harm the environment with chemicals

Lots of coastline to build

Can be used as pillars for bridges & roadways

Reasons to NOT Use ItChanging the underwater environment

Site specific: weather, erosion etc.

Changes the clarity of the water

Not a lot of energy created

CostsCost is mostly dam construction

10 years to build

Lasts for a long time

ConclusionWe should continue to build Tidal energy

stations

Good for the environment and renewable