What do we mean by net zero energy? Zero operating energy? Zero energy costs? Zero emissions? There is no one answer: approaches to net zero building vary widely across the globe and are influenced by different environmental and cultural contexts.
Net Zero Energy Building: Predicted and Unintended Consequences presents a comprehensive overview of variations in 'net zero' building practices. Drawing on examples from countries such as the United States, United Kingdom, Germany, Japan, Hong Kong, and China, Ming Hu examines diverse approaches to net zero and reveals their intended and unintended consequences.
Existing approaches often focus on operating energy: how to make buildings more efficient by reducing the energy consumed by climate control, lighting, and appliances. Hu goes beyond this by analyzing overall energy consumption and environmental impact across the entire life cycle of a building—ranging from the manufacture of building materials to transportation, renovation, and demolition. Is net zero building still achievable once we look at these factors?
With clear implications for future practice, this is key reading for professionals in building design, architecture, and construction, as well as students on sustainable and green architecture courses.
"Ming Hu has not only given us the history of net-zero buildings and a detailed analysis of their design, but has taken net-zero to the next logical level, demanding "zero-impact" building."
Dr. William W. Braham, FAIA, University of Pennsylvania
"The need for increasingly aggressive energy efficiency goals parallels the rising need to curb greenhouse gas emissions. Carbon Neutrality has given way to Net Zero, a simple standard which Professor Ming Hu lucidly explains in its many achievable and some complex variations. This book will help policy makers pick an interpretation which is both effective and achievable; an essential accessory for this next phase of green design and building."
Ralph Bennett, FAIA, LEED AP (BD&C), Bennett Frank McCarthy Architects, Inc
"Net Zero Building provides practitioners and policymakers the critical expertise and motivation needed for a net zero future in architecture and urbanism. Clear and illustrated chapters provide us with critical expertise on the definitions, the drivers, the quantification, and the innovations that will ensure zero impact through the full life cycle of the built environment. Ming Hu has created an irreplaceable reference for our shared future."
Vivian Loftness, FAIA, University Professor and Paul Mellon Chair in Architecture, Carnegie Mellon University
Table of Contents
Chapter One: The Evolution of Net-Zero Energy Building
Background and ecological origin – ecological economics
1930-1969 Early Solar House
1970-1989 First energy crisis and the emerge of net-zero energy building
1990-2006 Second Energy Crisis and The Consensus of Net-Zero Energy Building
2076-2010 Finical Crisis and Rapid Development of Net-Zero Energy Building
2010–2016 Financial Recovery and Blooming Net-Zero Energy Building
2017–Beyond Net-Zero Energy Building
Chapter Two: Principles of Zero: Metrics and Assessment
Existing Definition of Net-Zero Energy Building
The equation behind the definitions
Existing energy calculation method
Metrics and Measurement Tools
Chapter Three: Predicted Impact of Net Zero Building
Trends and Opportunities
Direct Benefits of Net-Zero Building
Culture-Social Shift – Impact on Community
Chapter Four: Unintended Consequences Net Zero Building – from a life cycle perspective
Net Energy and Its Ecological Economics Origin
Unintended Consequence One: environmental impact associated with embodied energy
Unintended Consequence Two: societal impact - more sprawl and green life style?
Unintended Consequence Three: ecological degradation
Chapter Five: Future Drivers and Economics
Regulatory Drivers: mandates, regulations and incentives
Human Health Drivers
Chapter Six: Advanced Building Materials and Systems- Smart Green Building
Phase Changing Material
Smart Systems: Advanced Building Envelope Fabric Materials
Chapter Seven: Zero-Impact Building – new framework based on life cycle assessment
Problems of Existing net zero definition
Additional Impact Indicators
Proposed definition of net zero impact building – from life cycle perspective
Proposed measurement and evaluation framework for net zero impact building
Chapter Eight: Future Development – A Case Study
Carbon Neutral Built Environment and City
Three Case Studies