This conference paper discusses four well-documented definitions of net-zero energy: net-zero site energy, net-zero source energy, net-zero energy costs, and net-zero energy emissions, along with pluses and minuses of each.
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This paper describes how net-zero energy buildings will produce, during a typical year, enough renewable energy to offset the energy they consume from the grid.
Case studies from a collaborative of experts in zero energy buildings who are creating market-based solutions to get to zero energy.
This paper introduces a classification system for net-zero energy buildings (ZEB) based on the renewable sources a building uses.
A guide to stakeholder engagement and messaging for zero energy schools.
Odyssey Elementary is a large public school in an area of Utah with a growing population. Created as a prototype for the Davis School District, Odyssey is a zero energy building whose design has already been copied for two other new schools, both of which are targeting zero energy. It has a unique design with four “houses” (or classroom wings) featuring generously daylit classrooms.
This paper illustrates the challenges of integrating rigorous daylight and electric lighting simulation data with whole-building energy models, and defends the need for such integration in order to achieve aggressive energy savings in building designs. Through a case study example, we examine the ways daylighting – and daylighting simulation – drove the design of a large net-zero energy project.
This guide provides user-friendly guidance for achieving a net zero energy K-12 school building. It includes a set of energy performance targets for all climate zones. Strategies on how to achieve these energy targets are provided throughout the guide and include setting measurable goals, hiring design teams committed to that goal, using energy simulation throughout the design and construction process, and being aware of how process decisions affect energy usage.
The how-to tips address specific project aspects-building and site planning, envelope, daylighting, electric lighting, plug loads, kitchens and food service, water heating, HVAC, and renewable energy generation. Each section contains multiple tips that move the design incrementally toward the zero energy goal. Case studies and technical examples show how the energy goals are achievable at typical construction budgets as well as demonstrate the technologies in real-world applications.
The intended audience of this guide includes educators, school administrators, architects, design engineers, energy modelers, contractors, facility managers, and building operations staff.
The "download" link will take you to the ASHRAE website, where you can download a free PDF of the Design Guide.
This article about zero energy schools appeared in the September 2018 issue of Civil Engineering, The Magazine of the American Society of Civil Engineers (ASCE).
Summary: Across the United States, primary and secondary school buildings are leading the way in the so-called zero-energy movement, in which structures are designed to generate at least as much energy as they use. They tend to be owner-occupied, are located on roomy sites with plenty of roof space for solar panels, and have predictable energy usage patterns, making them the perfect candidates.
Sustainable architect Bruce Haxton and ED+C senior editor Michelle Hucal organized the Net-Zero Energy Building (NZEB) Expert Roundtable III: Cost Analysis and Cost Modeling teleconference to investigate some of the NZEB cost issues uncovered in the first and second NZEB Roundtable conferences in 2010. This session is focused on NZEB costs analysis and cost models for different building types.
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