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DELTA Wind and Energy Consultancy

DELTA Wind and Energy Consultancy . Niels Stengaard Hansen. Planning for new windfarms. Many aspects to consider, such as Initial cost and maintenance cost Wind resources and expected output Power quality and grid requirements Noise impact Shadow impact Supplier and Technology

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DELTA Wind and Energy Consultancy

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  1. DELTAWind and Energy Consultancy Niels Stengaard Hansen

  2. Planning for new windfarms • Many aspects to consider, such as • Initial cost and maintenance cost • Wind resources and expected output • Power quality and grid requirements • Noise impact • Shadow impact • Supplier and Technology • Local subsidies • Will I make it a core competence or use consultants

  3. The Knowledge Centre DELTA DELTA is one of Europe's leading test-, design-, service-, consulting- and educational organisations within electronics, software, optics and acoustics. • More than 60 years of experience • 270 employees out of which 50% are engineers • Annual turnover 31,5 Mill Euro • 50% export • 2,500 customer assignments annually • Headquarters in DK • Locations in DK, UK and SE

  4. Manufacturers and suppliers Testing and validation (EMC, Reliability, noise and vibration) Specification of components Certifications and approvals Windfarm owners and developers Noise impacts Power quality and grid requirements Troubleshooting DELTAKey competencies

  5. Special CasesAcoustics

  6. Principle of Auralisation (simulation of WT sound) • Record the windturbine (using HATS or single microphone) • calculate the Propagation Path to the sound source and manipulate the recorded signal Nord2000 Free field Plate HATS Pos. B

  7. 180 m 180 m Auralised Position 3 Wind Speed: 6 m/s (10m) Wind turbines Hub height: 60 m Play manipulated sound in calibrated surrounding STOP

  8. Case: 2007 Low Frequency Disturbance by wind turbines Listening test How does meteorology affect sound propagation Noise generation Masking Background noise Sound transmission • Measuring • Samples for listening test Litterature study

  9. DELTA advantage • Grown with the industry since the early days • Independent • Combines experience with ongoing research to support our customers For more info: www.delta.dk customercentre@delta.dk nsh@delta.dk

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