Electricity Options for the Future
RENEWABLE ENERGY

3-Aug-09
Want is Renewable Energy?



    “Renewable Energy is energy which is renewable within a
    human lifetime and can be pro...
Why Renewable Energy

                          Climate change

                 Mandatory Renewable Energy Target
       ...
Why is renewable energy such a ‘big ask’?




                     High cost

                       Risky

              ...
Main Renewable Energy Types

                 Wind          Mature


                 Solar         Mature


             ...
WIND
                       Proven
                    Available now
               The cheapest renewable
               ...
The Modern Wind Turbine



               Most common design
                used nowadays is;
                   Three bl...
Photo courtesy Verve Energy




Coral Bay (2007) – tilt down wind turbine
 8   3-Aug-09
Wind Turbines Are Getting Bigger




    30kW          225kW          225kW    600kW   1.8MW   600kW



           Photos ...
Cathedral Rocks, SA, 2004
 10   3-Aug-09
SOLAR

                     Proven
                  Available now
                   Next in line?
                Predic...
The Earth’s Sun Belt




12   3-Aug-09
Solar Energy – Two Types


           Photo Voltaic           Concentrating Solar Power
                  PV              ...
Photovoltaics




                Photovoltaics

                       PV
                Sunlight to Electricity




14 ...
PhotoVoltaic (PV)




                Flat Plate PV

                                Concentrating PV


                Th...
Solar Systems Ltd. Dish/ PV




16   3-Aug-09
CSP



                Concentrating Solar Power

                         CSP
                        Sunlight to Heat


...
Main CSP Types
                        Parabolic Dish Engine




                                                         ...
CSP - Parabolic Trough




19   3-Aug-09
CSP - Parabolic Dish (Stirling Engine)




20   3-Aug-09
Spain PS10 & PS20 Power Towers




     Source: Koza1983



21   3-Aug-09
22   3-Aug-09
A Giant Footprint




23   3-Aug-09
Wave Energy




                WAVE ENERGY


24   3-Aug-09
Wave Energy
                CONTACT CARNEGIE RE
                USE




25   3-Aug-09
Dry Hot Rocks




                DRY HOT ROCKS


26   3-Aug-09
Geothermal – “Hot Rocks”




27   3-Aug-09
But it is not all good news


                   High Cost

                Technology Risks

                  Intermitte...
Costs




                   Capital Cost
                           vs
                   Energy Cost
                (Le...
LCOE




$/kWh



                                    PV

                              CSP




                       Win...
Technology Risks


                           Risk of scale-up

                            Cost overruns

               ...
Despatchability                   Predictability




                                  Dance Partner



                 L...
The Holy Grail



                              Energy Storage




                Electricity                    Other

 ...
Hot Salt – Thermal Energy Storage

                                            Electricity
                Sunlight




34...
In Conclusion


                       Future of renewables in WA

                     Early movers – wind & biomass

   ...
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Electricity Options for the Future by Barry Lake

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Electricity Options for the Future by Barry Lake

  1. 1. Electricity Options for the Future RENEWABLE ENERGY 3-Aug-09
  2. 2. Want is Renewable Energy? “Renewable Energy is energy which is renewable within a human lifetime and can be produced safely and equitably for all time with minimal impact on the environment and future inhabitants” Clean Non-polluting Sustainable 2 3-Aug-09
  3. 3. Why Renewable Energy Climate change Mandatory Renewable Energy Target (MRET – the 20/20 target) Carbon Pollution Reduction Scheme (CPRS) Renewable Energy Development Program (REDP) Solar Flagships 3 3-Aug-09
  4. 4. Why is renewable energy such a ‘big ask’? High cost Risky Lack of despatchability Different 4 3-Aug-09
  5. 5. Main Renewable Energy Types Wind Mature Solar Mature Biomass Mature Wave Demonstration Geothermal Emerging Tidal Demonstration 5 3-Aug-09
  6. 6. WIND Proven Available now The cheapest renewable Variable Highly visible 6 3-Aug-09
  7. 7. The Modern Wind Turbine Most common design used nowadays is; Three bladed Up-wind Horizontal axis Pitch controlled Steel, tubular tower Epoxy/polyester blades Variable or constant speed 7 3-Aug-09
  8. 8. Photo courtesy Verve Energy Coral Bay (2007) – tilt down wind turbine 8 3-Aug-09
  9. 9. Wind Turbines Are Getting Bigger 30kW 225kW 225kW 600kW 1.8MW 600kW Photos courtesy Verve Energy 9 3-Aug-09
  10. 10. Cathedral Rocks, SA, 2004 10 3-Aug-09
  11. 11. SOLAR Proven Available now Next in line? Predictable output Load coincident 11 3-Aug-09
  12. 12. The Earth’s Sun Belt 12 3-Aug-09
  13. 13. Solar Energy – Two Types Photo Voltaic Concentrating Solar Power PV CSP Sunlight to Electricity Sunlight to Heat to Electricity Heat Solar Concentrator Electricity 13 3-Aug-09
  14. 14. Photovoltaics Photovoltaics PV Sunlight to Electricity 14 3-Aug-09
  15. 15. PhotoVoltaic (PV) Flat Plate PV Concentrating PV Thin Film PV 15 3-Aug-09
  16. 16. Solar Systems Ltd. Dish/ PV 16 3-Aug-09
  17. 17. CSP Concentrating Solar Power CSP Sunlight to Heat 17 3-Aug-09
  18. 18. Main CSP Types Parabolic Dish Engine Parabolic Trough Concentrating Linear Fresnel Reflector Central Receiver 18 3-Aug-09
  19. 19. CSP - Parabolic Trough 19 3-Aug-09
  20. 20. CSP - Parabolic Dish (Stirling Engine) 20 3-Aug-09
  21. 21. Spain PS10 & PS20 Power Towers Source: Koza1983 21 3-Aug-09
  22. 22. 22 3-Aug-09
  23. 23. A Giant Footprint 23 3-Aug-09
  24. 24. Wave Energy WAVE ENERGY 24 3-Aug-09
  25. 25. Wave Energy CONTACT CARNEGIE RE USE 25 3-Aug-09
  26. 26. Dry Hot Rocks DRY HOT ROCKS 26 3-Aug-09
  27. 27. Geothermal – “Hot Rocks” 27 3-Aug-09
  28. 28. But it is not all good news High Cost Technology Risks Intermittency Energy Storage 28 3-Aug-09
  29. 29. Costs Capital Cost vs Energy Cost (Levelised Cost Of Energy) 29 3-Aug-09
  30. 30. LCOE $/kWh PV CSP Wind Gas Coal Time 30 3-Aug-09
  31. 31. Technology Risks Risk of scale-up Cost overruns Failure to meet performance targets Failure to work These risks affect project BANKABILITY 31 3-Aug-09
  32. 32. Despatchability Predictability Dance Partner Load Following Energy Storage 32 3-Aug-09
  33. 33. The Holy Grail Energy Storage Electricity Other Heat 33 3-Aug-09
  34. 34. Hot Salt – Thermal Energy Storage Electricity Sunlight 34 3-Aug-09
  35. 35. In Conclusion Future of renewables in WA Early movers – wind & biomass Next movers - solar and wave Major challenges - cost and technology risk There will be no single winner 35 3-Aug-09

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