Ongoing urbanization and ever-growing harmful environmental impacts from urban areas necessitate a sustainability transformation in cities. However, cities are also centers of wealth creation and consumption, which both drive environmental degradation. It is clear that cities need to re-establish themselves as low-energy/low-carbon systems, but the transformation is complex in many ways and time is running out. This Special Issue, “Energy Efficient Cities of Today and Tomorrow”, seeks to provide a more profound understanding of the future energy requirements of urban areas and low-energy and low-carbon cities. The published papers range from macro-level assessments of cities manifesting themselves as forerunners in their environmental work to micro-level studies of pro-environmental attitudes and their impacts on individual emissions, a carbon footprint impacts of sharing of goods and services.

These papers, presented at the Fifth Urban Research Symposium in Marseille, France, put into perspective ESMAP’s prioritization of city-wide and sector specific urban energy initiatives to make cities energy efficient, providing analytical tools, policy insights, and good practices.

A groundbreaking exploration of the most promising new ideas for creating the sustainable cities of tomorrow The culmination of a four-year collaborative research project undertaken by leading UK universities, in partnership with city authorities, prominent architecture firms, and major international consultants, Retrofitting Cities for Tomorrow's World explores the theoretical and practical aspects of the transition towards sustainability in the built environment that will occur in the years ahead. The emphasis throughout is on emerging systems innovations and bold new ways of imagining and re-imagining urban retrofitting, set within the context of ‘futures-based’ thinking. The concept of urban retrofitting has gained prominence within both the research and policy arenas in recent years. While cities are often viewed as a source of environmental stress and resource depletion they are also hubs of learning and innovation offering enormous potential for scaling up technological responses. But city-level action will require a major shift in thinking and a scaling up of positive responses to climate change and the associated threats of environmental and social degradation. Clearly the time has come for a more coordinated, planned, and strategic approach that will allow cities to transition to a sustainable future. This book summarizes many of the best new ideas currently in play on how to achieve those goals. Reviews the most promising ideas for how to approach planning and coordinating a more sustainable urban future by 2050 through retrofitting existing structures Explores how cities need to govern for urban retrofit and how future urban transitions and pathways can be managed, modeled and navigated Offers inter-disciplinary insights from international contributors from both the academic and professional spheres Develops a rigorous conceptual framework for analyzing existing challenges and fostering innovative ways of addressing those challenges Retrofitting Cities for Tomorrow's World is must-reading for academic researchers, including postgraduates insustainability, urban planning, environmental studies, economics, among other fields. It is also an important source of fresh ideas and inspiration for town planners, developers, policy advisors, and consultants working within the field of sustainability, energy, and the urban environment.

Optimal Design and Retrofit of Energy Efficient Buildings, Communities, and Urban Centers presents current techniques and technologies for energy efficiency in buildings. Cases introduce and demonstrate applications in both the design of new buildings and retrofit of existing structures. The book begins with an introduction that includes energy consumption statistics, building energy efficiency codes, and standards and labels from around the world. It then highlights the need for integrated and comprehensive energy analysis approaches. Subsequent sections present an overview of advanced energy efficiency technologies for buildings, including dynamic insulation materials, phase change materials, LED lighting and daylight controls, Life Cycle Analysis, and more. This book provides researchers and professionals with a coherent set of tools and techniques for enhancing energy efficiency in new and existing buildings. The case studies presented help practitioners implement the techniques and technologies in their own projects. - Introduces a holistic analysis approach to energy efficiency for buildings using the concept of energy productivity - Provides coverage of individual buildings, communities and urban centers - Includes both the design of new buildings and retrofitting of existing structures to improve energy efficiency - Describes state-of-the-art energy efficiency technologies - Presents several cases studies and examples that illustrate the analysis techniques and impact of energy efficiency technologies and controls

In 2010, we can expect that oil and gas prices will again increase beyond the US$100 per barrel, as the global economy recovers gradually from the global recession and uses more oil and gas. It is therefore important for the general public to read and understand more about complex energy issues which affect their lives. This useful energy book, based on lectures delivered at the ISEAS Energy Forum, as well as papers written by invited experts, provides a means to access energy information. It is part of the ISEAS Energy books series which serves to educate and raise public awareness on energy issues."e;As the author of The Grand Energy Transition (GET), I am naturally interested in energy books which discuss renewable energy and electric vehicles. The Grand Energy Transition shows us how to accelerate the transition to the sustainable energy gases of natural gas, wind, solar and hydrogen. What is clear is that we cannot continue with business as usual. It is imperative that energy consumption patterns should immediately begin to change dramatically. For this to happen, the public must be kept informed and mobilized. One excellent tool for public education is the ISEAS energy book with its wealth of information and which covers a wide range of energy issues. I appreciate ISEAS' good work done via the energy seminars and books, and I commend this book as an important read on energy issues."e; - Robert A. Hefner III, Founder, The GHK Company."e;The issues of environment, climate change and energy continue to feature prominently on the international agenda. There is clearly a higher level of public awareness and debate. The Copenhagen Conference focuses global attention on global warming and the rise in sea level, and provides opportunity to take a step towards transition to a low-carbon economy. Shell is working on energy and environmental issues, and continues to contribute resources, technology and skills to these global challenges. This ISEAS energy volume is timely, and a comprehensive in-depth analysis and recounting of the facts and challenges."e; - Lee Tzu Yang, Chairman, Shell Companies in Singapore