Presentation Description: Increasingly, the wake impact of neighboring wind farms may influence pre-construction wind resource measurements. This presentation focuses on case study examples and best practice to address this issue, including both techniques to correct waked measurements, and ways to assess the potential for bias induced by undertaking such corrections.
Specifically, this presentation will address: (1) Modeled and observed Influence on measured shear profile and turbulence intensity at waked masts (2) Potential biases induced by wake modelling inaccuracy as a function of distance downwind of an operating wind farm (Where accuracy of the wake model at the mast position is if critical importance.) (3) Correction techniques (e.g. sector wise invalidation and model-based synthesis, directional and wind speed binwise corrections, single scale factor corrections) (4) Correcting for blockage on pre-construction met masts (5) Assessing uncertainty of wake-corrections, uncertainty trade-offs associated with mast period-of-record truncations, and full invalidation of significantly waked masts.