Their position in transport systems allows ports to play a fundamental role in energy transitions. In increasingly ambitious quests to promote sustainability, ports often look to shore power to reduce emissions. To fill knowledge gaps regarding empirical experiences with shore power, this study turns to the transition to shore power in Oslo, Norway. In doing so, it demonstrates the instrumental role policy and politics can play in transitions. To explore this particular transition, we rely on document analysis and interviews with actors around the Port of Oslo and discuss their involvement with reference to the Multiple-Streams Approach. We argue that the main reason for successful implementation in this case was the environmental thrust and the lack of controversy. The transition was supported by shore power's ability to address different problems experienced by different actors, by the lack of competition from other policies and by a range of political influences which gave momentum to and aligned policy domains. Specifically, we find that the political stream was less prominent in selecting a policy, but more prominent in realizing it. Although the experiences from this particular transition are not necessarily transferrable beyond this case, our study demonstrates the importance of policy alignment, and argues that holistic policy making could be crucial to ensure deep transitions – in which ports can be expected to be prominent.

它们在运输系统中的地位使港口能够在能源过渡中发挥重要作用。在日益雄心勃勃的追求可持续性的追求中，港口常常希望依靠岸电来减少排放。为了弥补有关岸电经验经验的知识空白，本研究转向挪威奥斯陆向岸电的过渡。通过这样做，它证明了政策和政治在过渡中可以发挥的工具性作用。为了探索这一特定的过渡，我们依靠文档分析和对奥斯陆港附近演员的访谈，并参考多流方法讨论他们的参与。我们认为，在这种情况下成功实施的主要原因是环境因素和缺乏争议。岸电能够解决不同参与者所遇到的不同问题的能力，缺乏其他政策的竞争以及一系列推动和协调政策领域的政治影响都为这一过渡提供了支持。具体而言，我们发现政治流在选择一项政策时不那么突出，但在实现该政策时更为突出。尽管从这种特殊过渡中获得的经验并不一定能在这种情况下转移，但我们的研究证明了政策协调的重要性，并认为整体决策对于确保深度过渡至关重要-在这种过渡中，港口将是突出的。