Production/WS matrices

[Elie G]

Hello,

Is it possible to export matrices of production per WTG, per wind direction and wind speed bins in WAsP?

Many thanks for your support,

Elie

[Morten]

The short answer is no - WAsP does not present local wind climates in this form. 

WAsP prefers to use a Weibull distribution and frequency of occurrence for each sector. It is relatively easy to calculate bin frequencies from the Weibull parameters and I can send you the formula, if you like. 

WAsP wind statistics are available in the turbine site view - right-click the site and select show> wind for an example. It is also available in various reports and tools> utility scripts. Try to find a report or script which suits you - e.g. tools> utility scripts> custom windfarm output file - but beware that the precision (number of digits) often is less than ideal. 

If you need these matrices in a specific format for many projects, you may want a programed solution. There are several options:

1. Get a PyWAsP license, see WAsP - PyWAsP. 
2. Create your own utility script. This requires visual basic programming skills and the typecasting can be tricky. It is usually better to tweak an existing script than to start from scratch.
3. Read the data from the WAsP workspace file. This is actual a zip folder containing a file called inventory.xml, which has objects called <PredictedWindClimate>. Please note that the workspace file must be saved in a state where all calculations are valid.