ABSTRACT As a signatory to the Paris Climate Agreement, Australia committed to reduce emissions significantly by 2030. In a country highly urbanised and dependent on fossil fuels as its primary energy source, one key avenue for meeting these commitments is energy transition in the built environment. Australia has emerged as a leader in the design and construction of high-performance buildings in the premium commercial office sector. In this paper, we address a significant gap in understanding the diverse mechanisms through which building energy transition is being constituted in this sector, focusing on Sydney and Melbourne. In the absence of substantive publicly available data, we draw on mixed methods comprising a database developed around high-performing CBD office buildings and qualitative interviews with a range of sectoral stakeholders. We characterise the building stock in each city, and document five trends constituting energy transitions. We demonstrate that building energy transitions are not only shaped purposefully by dominant governance regimes but also by opportunistic responses to specific material and commercial conditions and legacies in each city. Thus the urban built environment affords significant opportunity for energy transitions, but pathways towards such transitions are necessarily multiple and ultimately shaped by material as well as institutional geographies.

中文翻译：

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能源转型的地理：澳大利亚悉尼和墨尔本中央商务区的高性能商业办公空间案例

摘要 作为巴黎气候协定的签署国，澳大利亚承诺到 2030 年大幅减少排放。在一个高度城市化并依赖化石燃料作为主要能源的国家，实现这些承诺的一个关键途径是建筑环境中的能源转型。澳大利亚已成为高端商业办公领域高性能建筑设计和建造的领导者。在本文中，我们解决了在理解该领域建筑能源转型所通过的各种机制方面存在的重大差距，重点是悉尼和墨尔本。在缺乏大量公开可用数据的情况下，我们采用混合方法，包括围绕高性能 CBD 办公楼开发的数据库以及与一系列部门利益相关者的定性访谈。我们描述了每个城市的建筑存量，并记录了构成能源转型的五个趋势。我们证明，建筑能源转型不仅受到主导治理制度的有意塑造，而且还受到对每个城市特定物质和商业条件以及遗产的机会主义反应的影响。因此，城市建成环境为能源转型提供了重要的机会，但实现这种转型的途径必然是多方面的，最终会受到物质和制度地理的影响。我们证明，建筑能源转型不仅受到主导治理制度的有意塑造，而且还受到对每个城市特定物质和商业条件以及遗产的机会主义反应的影响。因此，城市建成环境为能源转型提供了重要的机会，但实现这种转型的途径必然是多方面的，最终会受到物质和制度地理的影响。我们证明，建筑能源转型不仅受到主导治理制度的有意塑造，而且还受到对每个城市特定物质和商业条件以及遗产的机会主义反应的影响。因此，城市建成环境为能源转型提供了重要的机会，但实现这种转型的途径必然是多方面的，最终会受到物质和制度地理的影响。