The energy sector is one of the largest contributors to carbon emissions, thus it must change to renewable energy sources. However, common green energy sources show weaknesses in stability. To overcome this, offshore wind parks are a promising approach, because they provide a more stable energy supply. Nevertheless, it is difficult to build them, as the maritime environment poses many challenges. To vanquish this endeavor, extensive planning is required. This thesis has analyzed the challenges in planning for the two German offshore wind parks Baltic Eagle and He Dreiht through the theoretical lens of the large technical systems approach. The method of thematic analysis has revealed four major challenges in the planning process, that are environmental, technical, economic, and societal challenges. Often, these challenges relate to each other, for example when technical innovations are used to mitigate environmental challenges. Even though the challenges are dependent on the location of the project, the analysis discovered distinct patterns that are generally occurring. Lastly, this thesis contributes to a better understanding of planning for offshore wind parks as part of the energy transition.