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Sanjay Gangal
Sanjay Gangal is the President of IBSystems, the parent company of AECCafe.com, MCADCafe, EDACafe.Com, GISCafe.Com, and ShareCG.Com. Harvard HouseZero in Cambridge, Massachusetts by SnøhettaJanuary 18th, 2019 by Sanjay Gangal
Article source: Snøhetta The Harvard Center for Green Buildings and Cities (CGBC) at the Harvard Graduate School of Design (GSD) announced today the completion of HouseZero, the retrofitting of its headquarters in a pre-1940s building in Cambridge into an ambitious living-laboratory and an energy-positive prototype for ultra-efficiency that will help us to understand buildings in new ways. The design of HouseZero has been driven by radically ambitious performance targets from the outset, including nearly zero energy for heating and cooling, zero electric lighting during the day, operating with 100 percent natural ventilation, and producing zero carbon emissions. The building is intended to produce more energy over its lifetime than was used to renovate it and throughout its subsequent operation. Snøhetta was the project’s lead architect and Skanska Teknikk Norway was the lead energy engineer.  Image Courtesy © Harvard Center for Green Buildings and Cities
 Image Courtesy © Harvard Center for Green Buildings and Cities Leveraging HouseZero as both a workspace and a research tool, the CGBC will use millions of data points from hundreds of sensors embedded within each component of HouseZero to continually monitor its performance. This sensory data will also provide Harvard’s researchers with an unprecedented understanding of complex building behavior. This data will in turn, fuel research involving computational simulation, helping the CGBC develop new systems and data-driven learning algorithms that promote energy-efficiency, health, and sustainability.  Image Courtesy © Harvard Center for Green Buildings and Cities  Image Courtesy © Harvard Center for Green Buildings and Cities “HouseZero’s flexible, data-driven infrastructure will allow us to further research that demystifies building behavior, and design the next generation of ultra-efficient structures,” said Ali Malkawi, founding director of the Harvard Center for Green Buildings and Cities and the creator and leader of the HouseZero project. “By creating both a prototype and an infrastructure for long-term research, we hope to raise interest in ultra-efficient retrofits and inspire substantial shifts in the design and operation of buildings.”  Image Courtesy © Harvard Center for Green Buildings and Cities  Image Courtesy © Harvard Center for Green Buildings and Cities “Harvard HouseZero is an extraordinary physical example of efficiency and transformative design,” said Mohsen Mostafavi, Dean of Harvard GSD and the Alexander and Victoria Wiley Professor of Design. “As a living laboratory, it equips Harvard students and researchers with an unparalleled, innovative infrastructure for exploration and research as they design the next generation of sustainable buildings and cities around the world.”  Image Courtesy © Harvard Center for Green Buildings and Cities  Image Courtesy © Harvard Center for Green Buildings and Cities As a prototype, HouseZero works to address one of the biggest energy problems in the world today—inefficient existing buildings. The U.S. building stock is responsible for around 40 percent of energy consumption, with housing nearly a quarter of that use. Property owners spend more than $230 billion annually heating, cooling and powering its 113.6 million homes. [AL9] Addressing the energy-inefficiencies locked into this problematic building stock offers tremendous opportunity for curbing its impact on climate change. Paving the way through ultra-efficient retrofit strategies, HouseZero creates a blueprint for reducing energy demands and increasing cost savings for property owners.  Image Courtesy © Harvard Center for Green Buildings and Cities  Image Courtesy © Harvard Center for Green Buildings and Cities “HouseZero demonstrates how to solve that problem by optimizing current technologies to achieve unprecedented building performance,” said Malkawi. “HouseZero challenged us to rethink the conventions of building design and operation to enhance lifelong efficiency and quality of life for occupants.” The ultra-efficiency of HouseZero lies at the intersection of cutting-edge technologies and applications of established, low-tech architectural design solutions. An example is natural ventilation, which is controlled by a window actuation system, which employs sophisticated software and sensors arrays to automatically open and close windows to maintain a quality internal environment throughout the year. The building itself will strive for best possible comfort; however a window can always be opened manually to ensure individual comfort still remains firmly tethered to human instinct.  Image Courtesy © Harvard Center for Green Buildings and Cities  Image Courtesy © Harvard Center for Green Buildings and Cities HouseZero will be used to research how to fundamentally redefine how a structure can connect with and respond to its natural environment to promote efficiency and health. Rather than approaching the building as a “sealed box,” the building envelope and materials of HouseZero were designed to interact with the seasons and the exterior environment in a more natural way. The building will adjust itself constantly—sometimes by the minute— to reach thermal comfort for its occupants.  Image Courtesy © Harvard Center for Green Buildings and Cities  Image Courtesy © Harvard Center for Green Buildings and Cities As a living lab, the Center’s researchers are afforded inspiring surroundings that they themselves will be able to control and adapt. With time, the CGBC’s research has the potential to greatly diminish the environmental impact of the building industry through widespread sharing and implementation of HouseZero’s findings and data-driven building research across new construction and future building renovations worldwide.  Image Courtesy © Harvard Center for Green Buildings and Cities  Image Courtesy © Snøhetta  Image Courtesy © Snøhetta  Image Courtesy © Snøhetta  Image Courtesy © Snøhetta  Image Courtesy © Snøhetta  Image Courtesy © Snøhetta  Image Courtesy © Snøhetta  Image Courtesy © Snøhetta  Image Courtesy © Snøhetta  Image Courtesy © Snøhetta
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