The court gave three reasons that Gothenburg Energy's application was rejected.
"Shipping was one. And then it was going to be built in a place where there are contaminated dredging materials. That question was also critical. Whether or not this could be done in an environmentally safe way was never investigated," Peter Ardö, senior judge from the Land and Environment Court in Vänersborg told news agency TT.
The court wanted to know more about where exactly each turbine would stand, while the company's application stated that those questions would be solved after being granted permission.
There were many protests by individuals and organizations against the planned wind park and Gothenburg Energy does not yet know if they will appeal the decision.