Sound level weighting

In Norway, and probably other countries as well, there is a weighting done when calculationg noise levels. The purpose is that it should "cost" more with noise during night then during day, and that way you can optimize your layout to run more agressively during day than during night.

There is good information regarding this at the website of "NVE", the norwegian government that handles wind power.

In order to do this properly would require time series data rather than wind frequency tables. This is indeed the direction that we intend to take the software.

so much to do and so little time....

Well, yes... but I think you misinterpreted me. In a good way though, because your interpretation just became a feature request too


My idea was much easier, I will come to the time series requests later on, trust me.

The weighting is done much like the expected mean values are done, which I was talking about in another post. If you create support for the mean values, this should be a matter of half an hour or so.

The principle is almost exactly the same, but in this case a punishment weight is added during evening and night. In practice, this gives a "virtual" dB level that is about 5dB higher, assuing we have the same noise level during night, evening and day.