Articles | Volume 7, issue 4
https://doi.org/10.5194/wes-7-1503-2022
https://doi.org/10.5194/wes-7-1503-2022
Research article
 | 
19 Jul 2022
Research article |  | 19 Jul 2022

The wide range of factors contributing to wind resource assessment accuracy in complex terrain

Sarah Barber, Alain Schubiger, Sara Koller, Dominik Eggli, Alexander Radi, Andreas Rumpf, and Hermann Knaus

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Cited articles

Alletto, M., Radi, A., Adib, J., Langner, J., Peralta, C., Altmikus, A., and Letzel, M.: E-Wind: Steady state CFD approach for stratified flows used for site assessment at Enercon, J. Phys.: Conf. Ser., 1037, 072020, https://doi.org/10.1088/1742-6596/1037/7/072020, 2018. a
Bao, J., Chow, F. K., and Lundquist, K. A.: Large-Eddy Simulation over Complex Terrain Using an Improved Immersed Boundary Method in the Weather Research and Forecasting Model, Mon. Weather Rev., 146, 2781–2797, https://doi.org/10.1175/MWR-D-18-0067.1, 2018. a
Barber, S., Buehler, M., and Nordborg, H.: IEA Wind Task 31: Design of a new comparison metrics simulation challenge for wind resource assessment in complex terrain Stage 1, J. Phys.: Conf. Ser., 1618, 062013, https://doi.org/10.1088/1742-6596/1618/6/062013, 2020a. a
Barber, S., Schubiger, A., Koller, S., Rumpf, A., Knaus, H., and Nordborg, H.: Actual Total Cost reduction of commercial CFD modelling tools for Wind Resource Assessment in complex terrain, J. Phys.: Conf. Ser., 1618, 062012, https://doi.org/10.1088/1742-6596/1618/6/062012, 2020b. a, b, c, d
Barber, S., Schubiger, A., Koller, S., Eggli, D., Rumpf, A., and Knaus, H.: A new process for the pragmatic choice of wind models in complex terrain, final report, Eastern Switzerland University of Applied Sciences, https://drive.switch.ch/index.php/s/DGxWeKQ35nnbPMW (last access: 18 July 2022), 2021. a, b, c, d, e, f, g, h, i
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In this work, a range of simulations are carried out with seven different wind modelling tools at five different complex terrain sites and the results compared to wind speed measurements at validation locations. This is then extended to annual energy production (AEP) estimations (without wake effects), showing that wind profile prediction accuracy does not translate directly or linearly to AEP accuracy. It is therefore vital to consider overall AEP when evaluating simulation accuracies.
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