Chapter 8 - Spatial design of energy self-sufficient communities

Abstract

Cities are complex systems that face continuous change of environmental, developmental, and political conditions. This dynamic complexity calls into question traditional urban planning and design principles and demands new approaches that can be accomplished using new technologies such as artificial intelligence and specifically machine learning. This need is particularly acute when addressing energy-related issues that are affected by environmental conditions complicated by climate change. Reaching the goal of energy efficient and resilient cities requires moving past building-scale analysis to address the phenomenon at an urban scale. A strategy for reaching energy independency in urban environments has been the development of communities that guarantee the local supply and demand for clean energy, considering both network and building configurations. However, while the spatial development process requires the participation of architects and urban planners, the relationship between urban form and energy performance has not been widely explored in the design of high-performance energy communities, defined herein as minimizing energy demand and exercising the potential for energy self-sufficiency. This may be due to the complexity associated with studying how urban form impacts energy performance and the unavailability of tools for designing and assessing energy performance at this scale. In this study, the use of artificial neural networks is described as a method to unravel the complex, intertwined relationship between urban form and energy demand in communities in the context of San Diego, California, USA. The statistical results of this procedure are interpreted in terms of their architectural implications toward adding a spatial dimension to the existing technical discourse on developing energy-independent communities. The architectural interpretation is then translated into general rules and principles for spatially designing communities in San Diego that would maximize the energy performance of their underlying solar microgrid.