In this M.Sc. thesis the question of, which factors influence the local acceptance of wind power is investigated. Aim of the research is furthermore to discuss how new forms of co-ownership can contribute to building up and maintaining this acceptance in Denmark. In the theoretical part of the thesis it is shown that local acceptance of wind power may be influenced by a variety of factors. These factors depend on processes at three interlinked levels. These insights are combined in a conceptual model. Ownership is identified as one significant factor in this model. Based on an analysis of the existing ownership structure for wind power in Denmark, five basic forms of ownership are identified. By setting context-dependent criteria for new forms of ownership, these basic forms are combined into four new models of co-ownership. Two of these new forms do exist in Denmark, and are investigated in a case study. From the investigation of the cases it is concluded that local anchorage of the responsible planning authority may be crucial to gain local acceptance and overall project permission in these forms of co-ownership. This local character of planning is closely associated with local forms of ownership.