Tidal power 2012

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Presentation 5th October 2012

20121005_NLenES_Project_04_Tidal.JPG"

Antonio G

What are the advantages and disadvantages of this energy source?

Advantages 

Once you've built it, tidal power is free. It produces no greenhouse gases or other waste. It needs no fuel. It produces electricity reliably. I don't agree with this! --L.Doolaard (talk) 17:27, 2 October 2012 (CEST) Not expensive to maintain. Tides are totally predictable. Offshore turbines and vertical-axis turbines are not ruinously expensive to build and do not have a large environmental impact. Disadvantages A barrage across an estuary is very expensive to build, and affects a very wide area - the environment is changed for many miles upstream and downstream. Many birds rely on the tide uncovering the mud flats so that they can feed. Fish can't migrate, unless "fish ladders" are installed. Only provides power for around 10 hours each day, when the tide is actually moving in or out.

Carlos G F‎

Can it be used in the Netherlands or Spain, why?/why not?

SPAIN

Yes it can because Spain it's in contact to the Mediterranean sea and the Atlantic ocean.

NETHERLANDS

Yes it can use because the Netherlands is in contact with the North sea.

Is it renewable?

Yes it is because the sea will be always in movement.

it is renewable, but not for this reason!--L.Doolaard (talk) 17:28, 2 October 2012 (CEST)

Natalia M O‎

-Are you dependent of other countries/people when you want to generate electricity with this energy source?'

-No, because you only need the energy of the tides to useful forms of power - mainly electricity.

-But If you aren't near to the sea you can talk to another country to ask if they can take to you some energy of this tipe or -If you don't live near to the sea you can pay for get this energy to other country.

Daan P‎

How does tidal power work?

Tidal power, also called tidal energy, is a form of hydropower that converts the energy of tides into useful forms of power - mainly electricity.

Tidal energy is produced through the use of tidal energy generators. These large underwater turbines are placed in areas with high tidal movements, andare designed to capture the kinectic motion of the ebbing and surging of the ocean tides in order to produce electricity. Tidal power has potential for future power and electricity generation because of the massive size of the oceans. These articles explore the potential energy of tidal power technologies. You should add a pictur here!--L.Doolaard (talk) 17:30, 2 October 2012 (CEST)

Where can you find tidal power plants of this source and why?

You can find tidal power plants next to seas and oceans because the tidal powers are deep in the water so the fabrics also need to be near to them. I do not agree with that you can find these plants in rivers!--L.Doolaard (talk) 17:30, 2 October 2012 (CEST)


800px-TidalStream_Tidal_Farm_Pic.JPG


sihwa-lake-tidal-power-station-is-the-worlds-largest-tidal-power-installation.jpg

How tidal power works: 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 ebbing and surging of ocean tides in order to produce electricity. Tidal power has great potential for future power and electricity generation because of the massive size of the oceans. These articles explore the potential energy of tidal power technologies. -Where can you find ‘’plants’’ of this source and why? You can find plants of this nearby the oceans and sea’s. Because tidal powers are under water. -Can it be used in the in the Netherland? Yes, because the Netherlands is next to the northsea, so it can ben used in the Netherlands. -What are the advantages and disadvantages of generating energy with this source? Not expensive to maintain. Tides are totally predictable. Offshore turbines and vertical-axis turbines are not ruinously expensive to build and do not have a large environmental impact. Disadvantages A barrage across an estuary is very expensive to build, and affects a very wide area - the environment is changed for many miles upstream and downstream. Many birds rely on the tide uncovering the mud flats so that they can feed. Fish can't migrate, unless "fish ladders" are installed. Only provides power for around 10 hours each day, when the tide is actually moving in or out. -What are the effects on the environment? Barrage systems are expensive to build and maintain. They create problems for fish, swimming through the turbines, and they may encourage more sediment built up behind the barrages. If Tidal power stations are replacing fossil-fuel-burning power stations, then they are a positive effect on the environment. No carbon dioxide, obviously, is produced from tidal power stations. They are a renewable source of energy as long as the water keeps moving. -Is Tidal Power expensive? Yes is very expensive, sometimes is costs over 100 million euros. -Is Tidal Power sustainable/renewable? Yes, the tides will continue to ebb and flow, thus there will always be power being generated. The water is not used up, it stays in the water cycle, and can therefore be used over and over again without the need for replenishment.

Owen van D

Dutch student 2

Tidal power

is it expensive?

A tidal power project can be cost very much. Do you have an idea how much?--L.Doolaard (talk) 17:33, 2 October 2012 (CEST)

With possibly a 10 year construction period.

Therefore, the electricity cost is very sensitive to the discount rate.

a tidal power station will cost around the 23 billion pounds.

What are the effects on the environment?

Tidal energy does not make gases wich are responsibly for warming up the globe, or acid rain.

Use of tidal power could be also decrease the need for nuclear power, with its associated radiation risks.

some birds will die because they will fly against it.


Videos 2013