Interview about Green Island Urban Power Substation, winner of the A' Architecture, Building and Structure Design Award 2025
The power substation integrates sustainable design and urban functionality to redefine public infrastructure. Its double skin facade features solar panels on the south and east for energy efficiency, while planting troughs on green walls enrich the north and west. The southern facade reduces noise pollution and transforms the area into a linear park, creating opportunities for pedestrian activity and community interaction. This innovative approach highlights how essential infrastructure can contribute to both environmental and social well-being.
View detailed images, specifications, and award details on A' Design Award & Competition website.
View Design DetailsThe integration of solar panels and green walls operates as a complementary environmental system rather than two isolated strategies. Photovoltaic panels are positioned on optimal solar orientations to maximize energy generation, while green walls occupy shaded or less efficient facades, enhancing thermal insulation and reducing heat gain. This dual approach improves overall building performance by lowering operational energy demand and contributing to on-site renewable production. At the same time, the vegetation system supports biodiversity, filters air pollutants, and mitigates urban heat island effects. Together, they transform a purely technical facility into an active ecological infrastructure embedded within the urban environment.
The inspiration emerged from rethinking infrastructure as part of everyday urban life rather than as a segregated utility. In many cities, substations create inactive and often hostile edges. By transforming the southern facade into a linear park, the project reclaims this boundary as a social interface. The facade acts as both a noise buffer and a spatial threshold, allowing pedestrian movement, rest, and informal gathering. This approach is rooted in the belief that infrastructure should contribute to public life. The design reframes necessity as opportunity, turning a defensive edge into a civic space that reconnects neighborhoods and enhances urban continuity.
The double-skin facade was developed through parametric simulations to balance multiple performance criteria. Variables such as solar exposure, ventilation gaps, planting depth, and structural spacing were tested iteratively. The outer layer integrates adjustable photovoltaic panels and shading devices, while the inner layer supports vegetation and thermal buffering. Parametric modeling allowed us to optimize panel angles for energy output while ensuring sufficient light and airflow for plant growth. At the same time, the system reduces heat transfer and improves microclimatic conditions. This data-driven approach enabled a precise calibration between energy efficiency, environmental comfort, and ecological performance.
The project was grounded in interdisciplinary research spanning urban ecology, infrastructure design, and public space theory. We studied precedents where infrastructure and landscape intersect, alongside technical standards for substations. Early design phases involved mapping environmental constraints, noise levels, and circulation patterns. Through iterative prototyping, we explored how architectural elements could simultaneously meet safety requirements and invite public engagement. Collaboration with engineers and landscape specialists was critical. The outcome reflects a shift from single-function infrastructure to hybrid urban systems, where technical performance and social value are integrated rather than treated as separate design objectives.
One of the primary challenges was mitigating mechanical noise while maintaining openness and accessibility. Substations typically require strict acoustic control, which often results in enclosed, impermeable structures. We addressed this by using the building envelope itself as a layered acoustic buffer. The double-skin facade, combined with planted surfaces, absorbs and diffuses sound. The southern edge, designed as a park, incorporates spatial setbacks and landscape elements to further reduce perceived noise. These constraints ultimately shaped a more sophisticated section design, where environmental performance and user experience are resolved simultaneously rather than in conflict.
Plant selection was guided by adaptability, seasonal variation, and ecological contribution. We prioritized native and climate-resilient species that could thrive within vertical planting systems with minimal maintenance. A mix of evergreen and deciduous plants ensures year-round visual interest, while flowering species introduce seasonal change. The planting strategy also considers microclimatic conditions created by the facade, such as varying sunlight exposure and wind patterns. Beyond aesthetics, the vegetation supports urban biodiversity by attracting pollinators and improving air quality. The result is a living facade that evolves over time, reinforcing the building’s identity as an ecological system.
This project proposes a shift in how infrastructure is perceived and designed in dense urban environments. By layering functions—energy production, environmental mitigation, and public space—the design maximizes limited land resources. It demonstrates that infrastructure can be both compact and multifunctional without compromising technical performance. The approach is highly adaptable and can be applied to other essential facilities such as water treatment plants or transit hubs. In rapidly urbanizing contexts, this model offers a strategy for integrating necessary infrastructure into the social and ecological fabric of the city rather than isolating it.
Receiving the Bronze A’ Design Award provided international validation for an approach that challenges conventional infrastructure typologies. It reinforced the importance of integrating sustainability, public engagement, and technical innovation within a single design framework. The recognition has expanded opportunities for dialogue with a global audience and encouraged further exploration of hybrid infrastructure models. It also strengthens the argument that even highly technical projects can contribute meaningfully to urban life. Moving forward, this acknowledgment motivates us to push boundaries and apply similar principles to larger-scale and more complex urban systems.
The project integrates multiple monitoring systems to evaluate performance across environmental and social dimensions. Energy generation from photovoltaic panels is tracked in real time, alongside building energy consumption. Environmental sensors monitor temperature, humidity, and air quality to assess the effectiveness of the green facade. Noise levels are also measured to ensure compliance and user comfort. Additionally, user engagement is evaluated through pedestrian flow analysis and spatial usage patterns. These data streams provide feedback for ongoing optimization and demonstrate how infrastructure can be both measurable and responsive to its urban context.
The design reflects our studio’s core principles of Technology, Economy, and Nature through an integrated and balanced approach. Technology is expressed through parametric optimization and renewable energy systems. Economy is addressed by maximizing the utility of a single site through multifunctional design, reducing the need for additional land and resources. Nature is embedded through living systems that enhance environmental performance and user experience. The project demonstrates that these principles are not mutually exclusive but mutually reinforcing. It informs our future work by emphasizing holistic design strategies that align technical efficiency with ecological and social value.
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