Study on the error evalution method of calculated energy production by WAsP when the terrain gets complex

WAsP is not able to simulate the flow of wind field in the complex terrain, because of the model limitation, which is one of the main error source of the complex terrain wind resource assessment. This paper studies the error of calculated energy production by WAsP when it is applied to the complex terrain. An error evaluation method is presented and verified by the actual production data from an existing wind farm. The result shows that the presented error evaluation method is very effective and has a good practical value.