FEATURE SPONSOR
WIND MONITORING
REDUCING COST AND UNCERTAINTY WITH LIDAR
Ecofys supports successful wind measurement campaign for 150MW wind farm
One of the Netherland’s largest windfarms, De Drentse Monden Oostermoer, consists of 45 wind turbines and is being developed in the province of Drenthe in the North East of the country.
PROJECT MANAGEMENT SUPPORT
Ecofys WTTS, a subsidiary of Navigant, was responsible for the project management of the wind measurement campaign for the largest part of the project. The company supported the developers in designing the wind measurement strategy, aiming to find the optimal balance between reducing the uncertainty in the wind resource assessment and simultaneously limiting the costs for the wind measurement campaign.
PROJECT DETAIL
The wind measurements were performed over the course of two years using two ZephIR 300 wind lidars manufactured by ZephIR Lidar and owned by Raedthuys Windenergie – one of the three wind farm developers. Ecofys WTTS verified both Lidars against an IEC compliant met mast before and after the wind measurement campaign in order to confirm their suitability for wind measurements as a replacement to traditional cup anemometers.
The use of Lidar in this application enabled the assessment of the wind
ZephIR 300 wind lidar
regime at several hub height levels, which ranged from 100 metres to more than 140 metres. Moreover a second ZephIR 300 was used to investigate the wind speed gradient across the large site and further decrease the horizontal extrapolation uncertainty.
LOWERING OVERALL PROJECT RISK Ecofys WTTS
Both factors had a significant impact in lowering the overall project risks. The
HOTA: The Centre of Excellence for Nationally Approved Training
• Offshore • Maritime • Renewable • ERRV
• RYA • First Aid • Electrical • Health & Safety
For further information contact us on: T
• Firefighting • Emergency Response
‘Providing Quality Training For Over 25 Years’ 01482 820 567 | W
measurements reduced the uncertainty of the long-term wind climate and increased the predicted energy yield. The precision of the measurement data, and thus the identified higher predicted annual energy yield, are vital and valuable insights for the financing of the wind farm in this case, but importantly wind farms in general.
www.hota.org www.windenergynetwork.co.uk 45
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76
