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Science tidal 2


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tidal video

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  • Could you give an example of 2.5 Terra watts? I do not know how much a Terra watt is. Other than that it was good.
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Science tidal 2

  1. 1. Tidal Energy We as a group, believe that tidal energy is a viablesource of energy but not the most efficient. This source of energy is not economically or environmentally stable
  2. 2. Viability in the USATidal energy is not available everywhere inthe USA. You are required to live by a largebody of water (lakes,rivers or oceans)If we started to use tidal energy dams moreoften it could lead to a major disruption inall water sources
  3. 3. Viability in S.BIt would be a viable energy source in SantaBarbara because of our extensive stretch ofocean.We however do not have land to sacrifice forthe dam that would need to be built.
  4. 4. Background InfoThe first commercial plant was on Ranceriver, France by St. MaloTidal energy was first created in 900 A.D bynatives producing grains and rice
  5. 5. Views on Fossil FuelsFossil fuels such as oil and coal are twotraditional forms of energy. They are usefuland many people utilize all that they bring.However, our fossil fuels are slowly runningout and we need an alternative energysource.
  6. 6. Tidal EnergyDefinition: “Tidal energy is a form of hydropower thatconverts the energy of tides into useful forms of power - mainlyelectricity.”Tidal energy generally involves a dam being put at the mouth of alarge body of water called an estuary. This dam is composed ofturbines in tunnels which rotate when the tide comes in creatingelectricitysource: (wikipedia)
  7. 7. Where is it Found?tidal energy is a renewable source of energyfound in large bodies of water that go in andout of turbines spinning to create energyThis process continues until tides change
  8. 8. Storage and UsageTidal energy is stored in the turbines andconverted into energy by a generator whichpowers other sources of energyThis way of creating energy is better thantraditional sources because it does notinvolve drilling or burning things to obtainthe energySource:
  9. 9. The FutureThe future is not so great for tidal energyplants. Because of the overwhelming costsand large amount of land needed, scientistshave found that there are betterenvironmentally sustainable sources thatcould be used.
  10. 10. Usage of Tidal EnergyTidal energy is being used mainly in Europeand on the atlantic coast.I think that tidal energy is viable but is notnecessarily the best source of energy thatcould be provided.
  11. 11. AdvantagesTidal energy is an abundant source of energythat is clean and renewable(from the mooncontinuing to trigger tides).
  12. 12. Environmental AdvantagesIt is a non polluting source of energyIt does not give off harmful emissions orwaste
  13. 13. Economic AdvantagesOnce the dam is up and running, the costsare low
  14. 14. Environmental Con’sThere are four major drawbacks to tidalenergy from the environmental aspect.Dam’s block boating navigation: There is nolonger free access tho the ocean and it creates allot of trafficDams stall fish migration: Fish are made to passthrough the turbines at least twice and only 6% survive
  15. 15. Environmental Con’sDams change the natural flow of water:Turbines turn out water at a different rate than tides naturallycome in and outThis whole project takes up land that isinvalueble to our society. If we were to start thisproject, especially in santa barbara, we would lose a largepercentage of the natural habitat inhabiting these lakes, oceans andrivers.
  16. 16. Economic Con’sThe costs and matinence of tidal energyare astronomical: it costs almost two billion dollars toconstruct a tidal barrage. This is not worth it for the 2.5terrawatts ( created each dayThe Tidal plant only works for twelvehours a day and is also limited to where itcan be built: Obviously the plant can only be built by anocean, lake or river. That is debilitating. Working only twelve hours aday when the tide comes in and out means less power
  17. 17. Bibliography