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Book
1 online resource (iv, 14 p.) : col. ill.
Past work resulted in a common zero-energy building (ZEB) definition system of "zero energy" and a classification system for ZEBs based on the renewable energy sources used by a building. A definition for a zero-energy community is different and more complex than that of a ZEB because a community uses energy not only for buildings but also for industry, vehicles, and community-based infrastructure. This paper begins with a focus solely on buildings and expands the concept to define a zero-energy community (ZEC), applying the ZEB hierarchical renewable classification system to the concept of community. This approach emphasizes using all possible cost-effective energy-efficiency and demand-avoidance strategies first and then using renewable energy sources and technologies that are located in three places: first, on space within the built environment or unusable brownfield sites within the community; second, on either green space within the community or located outside the community boundary but within the region and brought into the community; and third, through the purchase of new Renewable Energy Certificates (RECs).
Book
1 online resource (iii, 8 p.) : ill.
Book
17 p. : digital, PDF file.
This paper describes the development of energy efficiency recommendations for achieving 30% whole-building energy savings in K-12 schools over levels achieved by following the ANSI/ASHRAE/IESNA Standard 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings (1999 and 2004 versions). Exhaustive simulations were run to create packages of energy design solutions available over a wide range of K-12 schools and climates. These design recommendations look at building envelope, fenestration, lighting systems (including electrical lights and daylighting), HVAC systems, building automation and controls, outside air treatment, and service water heating.
Book
1 online resource (16 p.) : ill.
On May 4, 2007, Greensburg, Kansas, was hit by a 1.7-mile wide tornado with 200 mph-plus wind speeds. This tornado destroyed or severely damaged 90% of Greensburg's structures. We discuss the progress made in rebuilding Greensburg, with a focus on the built environment and on meeting Greensburg's goal of 100% renewable energy, 100% of the time. We also discuss key disaster recovery efforts that enabled Greensburg to reach this goal. Key strategies included a Sustainable Comprehensive Master Plan, an ordinance resolving that city-owned buildings achieve LEED Platinum and 42% energy savings, a strong focus on rebuilding "right" with an integrated design process, attracting significant and sustained technical experts and national media attention, and linking renewable and energy efficiency technologies to business development. After three years, more than half the homes that have been rebuilt are rated at an average of 40% energy savings. All significant commercial buildings, including the school, hospital, banks, courthouse, and retail buildings, have been rebuilt to LEED Gold and Platinum standards and exceed 40% savings, with many exceeding 50% savings. Greensburg recently constructed a 12.5-MW community wind farm to provide all the remaining energy needed for its energy-efficient buildings and homes.

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