TIDAL ENERGY

TIDAL ENERGY

By Arnau, Martin, Ivan

Characteristics

01

Tidal barrages

02

Energy transformations

03

INDEX

04

Advantages and

Disadvantages

Barrages in Spain and Europe

05

Tidal energy risks

06

The end

07

1. CHARACTERISTICS

Tidal energy is a renewable source of energy that works thanks to the tides of the water. Some characteristics of it are:

• It is very green. It doesn't produce any pollution or

gases which could affect to the atmosphere.

• It is very predictable. As we can predict the tides

of the water, we can also predict how many energy we will have.

• The bad thing is the high cost of the constructions.

2. TIDAL BARRAGES

A tidal barrage is the name of the construction that produces tidal energy. It works like this:

• A tidal barrage blocks the water, forcing it to

pass below.

• Down there's a turbine that rotates thanks to

the water passing through there.

• As the turbine rotates, it transforms the kinetic energy to other types of energy, but that will be explained by Arnau.

3. ENERGY TRANSFORMATIONS

Electricity generated by generator

Transmitted by transmission line

Controlled by embarkment

Strikes Turbine

Tidal Waves

Potential energy

Kinetic energy

Electrical energy

4. ADVANTAGES VS DISADVANTAGES

4.1. ADVANTAGES

- Lower enviromental impact

- Produce little waste

- Decreases energy dependence in other countries

4.2. DISADVANTAGES

- Only efficient in certain places

withlarge tidal changes of more of 5 m

- Sometimes very tiny enviromental impact

5. BARRAGES IN SPAIN & EUROPE

In Spain, we have the Mutriku tidal power plant in the Basque Country. This is a wave power plant, where the arrival of a wave and its entry into a chamber spins a turbine, which helps to turn an alternator that produces electrical energy.

The European countries that currently have installed capacity to produce tidal energy are: France, the United Kingdom and Norway.

6. TIDAL ENERGY RISKS

Tidal power can damage marine life, as tidal turbines with their rotating blades may lead to deaths of living creatures in a sea.

Tidal energy can also impact the quality of water and sediment processes.

It can also alter the fauna and flora of marine ecosystems.

BIBLIOGRAPHY

We used Wikipedia (https://en.wikipedia.org/wiki/Tidal_power) and Google.

WE HOPE YOU LIKE IT!!