Cool roofs can help many building owners save money while protecting the environment. This guidebook has been created to help you understand how cool roofs work, what kinds of cool roof options are available, and how to determine if cool roofing is appropriate for your building. If you are planning a new building or replacing or restoring an existing roof, cool roofs should be considered as an energy efficiency option. Cool roof products exist for virtually every kind of roof
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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 report documents outcomes of the effort to rebuild Greensburg, Kansas, a town devastated by tornado damage in 2007. Key strategies include a sustainable comprehensive master plan, an ordinance specifying LEED Platinum ratings and 42% energy savings for city-owned buildings, focus on integrated design processes, and linkage of renewable and energy efficiency technologies with business development.
This paper presents a method for harnessing a discrete optimization algorithm to obtain significantly different, economically viable building designs that satisfy an energy efficiency goal. The method is demonstrated using NREL’s first-generation building analysis platform, Opt E-Plus, and two example problems. We discuss the information content of the results, and the computational effort required by the algorithm.
This fact sheet published by the National Renewable Energy Laboratory discusses the lab's newest building, the Research Support Facility (RSF). The RSF is a showcase for ultra-efficient workplaces. Various renewable energy and energy efficiency features have been employed so that the building achieves a Leadership in Energy and Environmental Design (LEED) Platinum rating from the U.S. Green Building Council.
This issue highlights National Renewable Energy Laboratory's Research Support Facility and its foundations in energy efficiency.
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.
This brochure describes the BTI-Greensburg John Deere building in Greensburg, Kansas.
This brochure describes the Business Incubator building in Greensburg, Kansas.
This brochure describes the Dillons Qwik Shop building in Greensburg, Kansas.