The ProblemBBC

Wave Power

About Me

Conception: approx 1800

About Me

Date of birth: 1940sCountry of birth: JapanFather: Yoshio Masuda

Baby Growth Spurt

1973 oil crisis– British and Norwegian gov’ts began

projects, only Norway followed through

Started Talking

1991 EU included wave power in program on alternative energy development

Resurrection

Climate change and reduction of GHG renewed focus on wave power

Puberty

2004: wave power delivered to electrical grid for first time

Current Home

First wave farm completed in Portugal in 20083 Pelamis2.25MW27 more to come

Construction: 5MW for England

Meaning of My Name

Sun Wind Waves KE Electricity

Favorite Math

Maximum power available per unit length of wave =

0.5A2(ρ)gv A = amplitude

ρ = densityv = speed

Need to also know:Wavefront length = L

Wavelength = λ

Home

2% of coastal water has wave power densities great enough

100-200MW per kilometer of coastline

Home

Location

Shoreline NearshoreOffshore

Type

FixedTetheredFloating

Family Members

https://www.youtube.com/watch?v=bEfrtAOMuvk

My Family Tree

Wave Power

Oscillating Water

Column (OWC)

Point Absorber

Overtopping Device

AttenuatorsTerminator

Pelamus

I’m Good at My Job

Salter’s duck: stops 90% of wave motion, converts 90% into electricity (81% efficiency)

Better Than Others

AttractivenessAttractive Unattractive

Free ‘material’ Expensive

Renewable Still in developing stage

Emission free Source of water with high power needed

Attract visitors Unaesthetic

Similar to other offshore instillations Threat to boats

Artificial reef Far away, hard to maintain

Hard to predict

Must withstand salt and severe weather

Alter flow of sediment on ocean floor

Noise from machinery

Conflicting usage of ocean

New EM fields near generators and electrical cords

Sensors to adjust device to size of wave

Potential

World Energy Council: Wave power can supply 10% of world’s electrical power, or 2TW per year.Will cost 820billion euro to harness

My Allowance

My AllowanceM

SN

My AllowanceGarnaut Clim

ate Change Review

My Allowance

Bibliography• http://www.freevector.com/site_media/preview_images/FreeVector-Blue-Wave.jpg• http://www.esru.strath.ac.uk/EandE/Web_sites/01-02/RE_info/wave%20power.htm• https://blogs.umass.edu/p139ehr/2012/11/13/pros-and-cons-of-wave-energy/• http://www.renewablegreenenergypower.com/wp-content/uploads/2012/04/RenewableEnergyPot

entialVsFossilFuels.jpg• http://www.eea.europa.eu/highlights/renewable-energy-production-must-grow/figure_page_238_E

U27_2020.png/image_large• http://www.pge.com/includes/docs/pdfs/shared/environment/pge/waveconnect/WaveConnect_Re

sourcePotential_rev2.pdf• http://www.pembina.org/re/sources/wave• http://www.cres.gr/kape/pdf/download/Wave%20Energy%20Brochure.pdf• http://www.garnautreview.org.au/update-2011/commissioned-work/potential-wave-energy.pdf• http://www.bbc.co.uk/schools/gcsebitesize/geography/images/skills_005.gif• http://msnmoney.brand.edgar-online.com/EFX_dll/EDGARpro.dll?FetchFilingHTML1?ID=5744900&S

essionID=jD3hWZnjVRJFbg9• http://windy-future.info/2009/07/05/renewable-energy-cost/• http://pac-ibphys.wikispaces.com/Energy+degradation• http://technomonksmusings.com/storage/balance.jpg?__SQUARESPACE_CACHEVERSION=13320182

68810• http://news.bbc.co.uk/2/hi/technology/6410839.stm• http://www.cbsnews.com/8301-205_162-57584292/worlds-first-wind-wave-power-system-to-be-ins

talled-off-japanese-coast/• http://enduse.lbl.gov/info/CA_Presentation/sld011.htm

Bibliography