FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Power performance method overview
6 Preparation for performance test
7 Test equipment
8 Measurement procedure
9 Derived results
10 Reporting format
Annex A (normative) - Assessment of influences caused
by wind turbines and obstacles at the test site
Annex B (normative) - Assessment of terrain at the test site
Annex C (normative) - Site calibration procedure
Annex D (normative) - Evaluation of uncertainty in measurement
Annex E (Informative) - Theoretical basis for determining
the uncertainty of measurement using the method of bins
Annex F (normative) - Wind tunnel calibration procedure for
anemometers
Annex G (normative) - Mounting of instruments on the
meteorological mast
Annex H (normative) - Power performance testing of small
wind turbines
Annex I (normative) - Classification of cup and sonic anemometry
Annex J (Normative) - Assessment of cup and sonic anemometry
Annex K (normative) - In situ comparison of anemometers
Annex L (normative) - The application of remote sensing technology
Annex M (informative) - Normalisation of power curve data
according to the turbulence intensity
Annex N (informative) - Wind tunnel calibration procedure
for wind direction sensors
Annex O (informative) - Power performance testing in
cold climate
Annex P (informative) - Wind shear normalisation procedures
Annex Q (informative) - Definition of the rotor equivalent
wind speed under consideration of wind veer
Annex R (informative) - Uncertainty considerations for
tests on multiple turbines
Annex S (informative) - Mast flow distortion correction
for lattice masts
Bibliography