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Renewables and Green Energy Dave Elliott

Renewables and Green Energy Dave Elliott. The Energy and Climate crisis

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Renewables and Green Energy Dave Elliott

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  1. Renewables and Green Energy Dave Elliott

  2. The Energy and Climate crisis Whatever we do about using energy more efficiently, and even if we can stabilise the global population, we will need new energy sources to replace fossil fuels - not just because they will run out, but also because using them up will impose huge climate change costs on society. We need new clean, green energy technology

  3. The UK is very well placed- we have enviable renewable energy sources Potential % of overall UK electricity supply in 2050 Onshore wind 8-11% Offshore wind 18-23% Wave/Tidal 12-14% Biomass 9-11% PV solar 6-8% TOTAL53-67% Based on overall likely level of supply of 400-500 TWh in 2050 Source: DTI/Carbon Trust ‘Renewables Innovation Review’ 2004

  4. Offshore wind, tidal, wave- the UK has the world’s best resources

  5. Building offshore renewables at Burntisland Fabrications in Scotland Lunar Energy Tidal farm SeaFlow Marine Current Turbine farm MCT Seaflow tidal current turbine

  6. Big stuff- new review of Severn options Severn Barrage8.6GW Tidal Lagoon Severn Tidal Fence 1.3GW

  7. We can also use solar energy ..and biomass energy crops

  8. £/MWh Frontier Economics 2008

  9. Economics- prices for most renewables look likely to fall significantly- below that for fossil and nuclear UK Cabinet Office PIU study, 2003

  10. Long term cost trends

  11. Airtricity North Sea Supergird - linking in off-shore wind farms 10GW initial stage now planned

  12. EU-ME-NA grid network linking up wind, hydro, geothermal, biomass projects, with CSP solar in desert areas also proving 15 % of energy Its not just a UK issue - it’s global

  13. Concentrating Solar Power (CSP) Focused solar ‘Power Tower’

  14. Germany- 23 GW of wind, 2GW PV In 2008 it got 14.2% of its electricity, and 8.6% of its final energy from renewables. Target: 30% of electricity by 2020 USA- 20 GW of wind In 2008, 29 GW(e) of (non-hydro) renewables+77GW hydro- ~10% of total US energy generation capacity. Target: 10% of electricity by 2010. 25% by 2025. China7.7% of energy from renewables in 2005. Targets: 10% by 2010, 15% by 2020 Wind target- 20GW by 2020, possibly more (100GW?)

  15. International Sustainable Energy Organisation www.uniseo.org/energygraph.html

  16. Energy Watch ‘high’ scenario- 4,45GW of (non hydro) renewables globally by 2030- 30% share of final total energy demand, 62% of global electricity (Energy Watch2008)

  17. We don’t need Nuclear * Can’t contribute short term: ~10 years to plan/build * or long term: reserves of high grade uranium limited In the meantime, creates further problems with: * Accidental leaks and emissions * Long term disposal of active wastes * Proliferation of bomb making capacity and materials * Potential Terrorist attacks Renewables - mostly faster, cleaner, safer, cheaper, with no emissions or wastes,no proliferation or terrorist threats, and no fuel resource depletion worries The accident at Chernobyl plant in the Ukraine led to many EU countries backing off from nuclear power

  18. ..and we have to get rid of these Conventional coal fired power plant- carbon dioxide gas released up chimney stack Waste heat pumped out as steam from cooling towers ~30% efficiency

  19. Combined Cycle Gas Turbine These are better.. Brimsdown CCGT Power Plant - 400 MW of electricity 50% efficiency

  20. ..but not much Brimsdown CCGT - The Fancoil Unit 400MW of waste heat

  21. Combined Heat and Power - up to 80% efficient

  22. We also need to avoid energy waste Cavity wall filling Loft Insulation Domestic Energy Efficiency High efficiency Windows Compact Fluorescent Lamps

  23. So there is plenty to do… And we need the push hard to make it happen The TUC has called for a ‘just transition to a greener economy', It says that ‘while countries such as Germany, Denmark and Spain are creating thousands of jobs and billions of pounds in revenue by actively supporting green businesses, the UK is lagging behind’. The TUC report 'A Green and Fair Future', urges the Government to work more closely with employers and unions to start implementing policies that will allow the UK to become a world leader in the new green economy. And it’s new report ‘Unlocking Green Enterprise: A Low Carbon Strategy for the UK Economy’, spells out what’s needed in more detail But it has to be done right - as well as quickly

  24. There is no shortage of ideas -and investing in them will create of lot of new jobs Jobs in windpower in the UK Renewables Advisory Board forecasts

  25. Green energy jobs There could be 160,000 people employed in the UK renewable energy industry by 2020- according to BERR 250,000 are already employed in Germany and this is expected to rise to 400,000 by 2020 US President Obama has allocated $168 billion to green energy technologies in his Feb 2009 economic rescue plan - which is designed to create 3.5 million jobs

  26. But the UK has not yet really started to exploit its huge renewable resource- though others have 40% Next : EU targets for 2020 Austria 34% Denmark 30% Finland 38% Latvia 42% Portugal 31% Sweden 49% UK 15% .. still a way to go UK 1.3% /

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