Power Curves

Power curves may be created for any user selectable date range with a selectable wind speed bin size and choice of binned or scatter data.

Power Curves are generated according to the IEC 61400-12 Standard and include the following options:

• Application of speed-up factors.

• Standard error analysis.

• Air density correction: to specified value based on measured temperature and pressure data, record by record based on measured temperature and pressure data or average correction for period.

• Wind direction exclusion sectors.

• Exclusion of records where icing occurred.

• Filtering of data based on:
- minimum sample rates.
- minimum number of readings.
- record length.

Power curves may be generated using nacelle or any meteorological station wind speed signal. It is possible to apply user specified corrections to nacelle anemometer readings to obtain the free stream wind speed.

Power curves can be either shown immediately or queued for delivery by email at a later date. Facilities are also provided to queue a batch of Power Curves reports for groups of turbines.