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Joule Project JIRP106/03 Oct 2006 – Dec 2008

Liverpool Energy Day Foresight Centre Tues 23 rd June 2009. The UK Tidal Range Renewable Energy Resource. Joule Project JIRP106/03 Oct 2006 – Dec 2008. Investigator Team: UoL - Department of Engineering: Richard Burrows , Nick Yates,

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Joule Project JIRP106/03 Oct 2006 – Dec 2008

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  1. Liverpool Energy Day Foresight Centre Tues 23rd June 2009 The UK Tidal Range Renewable Energy Resource Joule Project JIRP106/03 Oct 2006 – Dec 2008 Investigator Team: UoL - Department of Engineering: Richard Burrows, Nick Yates, TS Hedges, DY Chen, Ming Li, JG Zhou POL: Ian Walkington, Judith Wolf, J Holt, R Proctor, (D Prandle)

  2. Global Tidal Amplitudes

  3. Tidal Barrage Power Generation Lasting source of clean energy Large capacity and secure Time of production predictable Tried and tested La Rance operating > 40 yrs Flood protection Transport link Tourism Disadvantage - some environmental modification but not necessarily degradation!!

  4. Power Generation Basin Elevation Tide Elevation Tidal Ebb-mode Power Generation z hmin t delay

  5. ‘Flat-Estuary’ 0-D Modelling: Dee Estuary (8m turbines) 5

  6. Operating Modes Ebb 1.35 TWh Dual 1.30 TWh Flood 0.79TWh Dee Estuary (40x21MW 8m turbines, 40x8mx12m sluices) 6 6

  7. Dee Estuary (8m turbines) – Dual-Mode Operation Dual mode operation: 800MW station (80@10MW) - Annual Energy ~ 1.87T Wh [40@10MW ~ 1.23 TWh] 7

  8. 2-D Modelling using ADCIRCand Unstructured Grid Generation

  9. Flow simulations around the whole grid

  10. Flow simulations around the Irish Sea

  11. (1xDoEn) ebbChange to Tidal Components S2 M2

  12. Flow simulations around the Dee & Mersey Barrages

  13. (1xDoEn)Ebb Mode Power Output Common Delay of 2 hours imposed

  14. (1xDoEn) ebbSpring / Neap Power

  15. (1xDoEn) dualSpring / Neap Power

  16. Energy Outputs from 2-D Modelling- provisional figures not fully validated

  17. Modelling tidal stream power potential Grid of the west coast model showing the locations of the four simulated tidal stream farms: Mersey (blue); Skerries (yellow); West Wales (green); Lynmouth (red).

  18. Modelling tidal stream power potential

  19. Modelling tidal stream power potential Change in current speed at the tidal stream farms:- Mersey Lynmouth Skerries West Wales

  20. Contents From MacKay (2009) ‘Sustainable Energy- without the hot air’ Red/pink - Regions with peak currents exceeding 1m/s Estuary barrage Coastal lagoon

  21. CONCLUDING COMMENT The UK possesses natural resources in tidal energy capable of making a significant impact on its CO2 emissions. _____________ • Tidal barrages in the estuaries of the Northwest would be capable of meeting about half the region’s electricity need • UK tidal resource ~ 15% barrage/lagoon + ~ 5% ‘stream’ • ISSUES outstanding:- sediments – morphological changes & biodiversity implications; tidal regime change & biodiversity implications; tidal stream resource and array performance evaluation; optimal operational scheduling - grid balancing; hydro-mechanical plant performance; economics - holistic cost-benefit analysis • Further information: www.liv.ac.uk/engdept/tidalpower • Any questions?

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