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COST SAVING POTENTIAL IN SMALL WIND USING NEW TOWER MATERIALS AND MANUFACTURING PROCESSES

COST SAVING POTENTIAL IN SMALL WIND USING NEW TOWER MATERIALS AND MANUFACTURING PROCESSES. V. Berkhout, P. Kühn Fraunhofer Institute for Wind Energy and Energy System Technology (IWES). Motivation.

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COST SAVING POTENTIAL IN SMALL WIND USING NEW TOWER MATERIALS AND MANUFACTURING PROCESSES

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  1. COST SAVING POTENTIAL IN SMALL WIND USING NEW TOWER MATERIALS AND MANUFACTURING PROCESSES V. Berkhout, P. KühnFraunhofer Institute for Wind Energy and Energy System Technology (IWES)

  2. Motivation We are very close to the ‘tipping point’ where production volumes would skyrocket, causing production costs to plummet. source: AWEA, 2002

  3. Outline • World market analysis in 1 kW to 5 kW segment • Manufacturers • Component prices of a generic small wind turbine • Cost potentials

  4. World market size for SWT from 1 kW to 5 kW World market size for 1 kW – 5 kW: approx. 22.000 Units sources: AWEA, BWEA, REEEP

  5. Small wind manufacturingBetween one piece production and line assembly source: Heyde Windtechnik / Grüne Elbe-Weisseritz / www.flickr.com source: www.hyenergy.com.cn source: www.effsun.com source: AWEA / www.flickr.com

  6. Small wind components prices

  7. Cutting tower costs with new materials • Fibre reinforced plastics being applied as tower material • Centrifugal casting process • Fatigue testing necessary • Cost savings depend on less material use and spread to steel prices source: Anemergonics / Paul Migliore in Veers (2011)

  8. Cutting small wind logistic costs source: Blittersdorf, AllEarthRenewables

  9. Conclusion and Outlook • Estimatedworldmarketsizeof 22.000 turbines in 1 kW – 5 kW segment • Lessthantenmanufacturerproducemorethan 1.000 units per year • Significantproductioncostcuts in blade manufacturingachieved • Major componentvaluecomesfromtowerand power electronics • New materialsforsmall wind towerstobeexpected • Focus on thetowerandlogisticsforfurthercostreduction

  10. Thank you for your attention! Visit us at stand B-B77

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