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Presentation to Penarth Society

This presentation explores the role of tidal lagoons within a sustainable energy strategy for the UK. It covers the concept of sustainable development, setting a vision, achieving the vision, and the benefits of an integrated approach to decision making. A case study of a proposed tidal lagoon off the coast of Rhyl, North Wales is also discussed.

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Presentation to Penarth Society

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  1. Presentation to Penarth Society 28 February 2007

  2. Tidal Lagoons Within a Sustainable Energy Strategy for the UK Jim Poole Cardiff University

  3. Currently • Policy Adviser at Cynnal Cymru – the Sustainable Development Forum for Wales • Visiting Professor in School of Engineering at Cardiff University • … on secondment from Environment Agency Wales

  4. Previously – Sewage Scientist

  5. Indicator Organisms

  6. Simple Tests

  7. Relate plant performance to the organisms present

  8. Now – Taking the Overview

  9. Relate the world to people’s personal experience

  10. Sustainable DevelopmentBrundtland Definition:“Development which meets the needs of the present without compromising the ability of future generations to meet their own needs”

  11. Sustainable Development as a ProcessThe UK SD Strategy 1999“A better quality of life”

  12. UK SD Strategy 1999 “A better quality of life”

  13. The UK SD Strategy 1999 Four Objectives: • Social progress which recognises the needs of everyone • Effective protection of the environment • Prudent use of natural resources • High and stable levels of economic growth and employment

  14. The "Four-legged Table" A Model for Sustainability Env Ec Soc Nat Res

  15. Objective • Level table … • … at the right height

  16. The "Four-legged Table" A Model for Sustainability Quality of Life Env Ec Soc Nat Res

  17. Step 1 Setting the Vision

  18. From this …

  19. … to this

  20. "Imagination is more important than knowledge. It is a preview of life's forthcoming attractions“(Albert Einstein)

  21. Setting the Vision (1) Involve: • Stakeholders (so the vision is fair) • Technical experts (so the vision is sound)

  22. Setting the Vision (2) Recognise: • Trends in the state of the planet • Trends in people’s values • The context within which the vision is developed

  23. Step 1: Setting the Vision Above all, recognise: • Environmental problems … … are caused by people • The challenge is to change people’s behaviour … … in partnership with them

  24. Step 2 Achieving the Vision

  25. The "Four-legged Table" Attacking the Gap Current Position

  26. Attacking the Gap • Start with the Vision • Assess the current situation • Attack the gap

  27. “All policies, programmes and projects must address all four legs of the table”

  28. Benefits of this approach • Increases awareness of SD • People appreciate full implications of their plans • Maximum sustainability built into projects • Provides a common appraisal framework

  29. The nature of decision making

  30. Data-rich approach

  31. Actor-rich approach

  32. Actor-rich Approach Preferred • People bring data in their heads • Including what is possible, not simply what has happened • Fosters integration of ideas and mindsets

  33. The Challenge for SD Not simply to balance: • The Economy • Society • The Environment …

  34. The Challenge for SD … but to amalgamate: • Economics • Social Science • Environmental Science

  35. Case Study Proposed Tidal Lagoon off the Coast of Rhyl, North Wales

  36. Tidal Lagoon – Plan View Dam wall Outside Inside Water passing through turbines

  37. Tidal Lagoon – Cross Section Water at different level inside and outside lagoon Dam Wall Sea Bed

  38. Proposed Location – Indicative

  39. Wind Farms (npower renewables)

  40. Operating Cycle - Simplified Outside Inside Outside

  41. Build up Head Generate Electricity Generate Electricity Build up Head

  42. Tidal Lagoon – Operation Step 1: Build up head inside the lagoon by water level falling outside from high tide to low tide T

  43. Tidal Lagoon – Operation Step 2: Generate electricity by emptying lagoon from high tide level to low tide level T

  44. Tidal Lagoon – Operation Step 3: Build up head outside lagoon by water rising from low tide to high tide T

  45. Tidal Lagoon – Operation Step 4: Generate electricity by filling lagoon from low tide level to high tide level T

  46. Context for North Wales Tidal Lagoon • The global picture • The local area • UK SD framework andenergy policy

  47. Global Context • Climate change • Rising sea level • Run-down in supplies of oil and gas • Increased use of renewable energy

  48. Local Area • Victorian seaside resorts – “faded glamour” • Rhyl contains one of the most deprived electoral wards in Wales • Sea wall breached in 1990 (Towyn Floods)

  49. The mouth of the River Clwyd

  50. Where are the riders?

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