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Wave Energy Milana Paul and Skutch Montgomery
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What is Wave Energy? • Surface waves or water pressure and movement below the surface of the ocean geology.cnsm.ad.csulb.edu
How is this Energy Harnessed? • Wave power devices collect energy directly from the surface motion of ocean waves or from pressure movement below the surface. • Attenuators are floating structures that when flexed by waves, harvest energy
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What Kind of Energy is Produced? Wave energy is best suited for producing electricity, most generators are similar to that in a typical hydro-powered dam
How realistic is this energy? • Sufficient recoverable wave power around the UK • <0.1% of the renewable energy within the world's oceans could supply more than 5X the global demand for energy • Similar problems to those encountered by some windfarm projects • Aesthetic and noise impact
How likely is it that we will use it in the future? • Ocean wave and current technologies are in the first prototype testing stage • Hydrogen production = long term
Advantages vs. Disadvantages • Waves are free and will not run out so the cost is in building the power station. • Wave power does not produce greenhouse gases. • There are very few safety risks with wave power generation • Toxic releases from leaks or accidental spills • Visual and noise impacts • Negative impacts on marine habitat • Conflict with other sea space users- commercial shipping and recreational boating
Quizzzzz • Where does the energy come from? • What is one advantage? Disadvantage? • Will we be seeing more of it in the future? • Where would be some good places to harvest the energy?
Bibliography • http://ocsenergy.anl.gov/guide/wave/index.cfm • http://news.bbc.co.uk/2/hi/science/nature/1032148.stm • http://www.childrensuniversity.manchester.ac.uk/interactives/science/energy/discovermore/advantages.pdf • http://ocsenergy.anl.gov/documents/docs/NREL_Scoping_6_06_2006_web.pdf