This Technical Support Document describes the process and methodology for the development of the Advanced Energy Design Guide for Large Hospitals: Achieving 50% Energy Savings Toward a Net Zero Energy Building (AEDG-LH) ASHRAE et al. (2011b). The AEDG-LH is intended to provide recommendations for achieving 50% whole-building energy savings in large hospitals over levels achieved by following Standard 90.1-2004. The AEDG-LH was created for a “standard” mid- to large-size hospital, typically at least 100,000 ft², but the strategies apply to all sizes and classifications of new construction hospital buildings. Its primary focus is new construction, but recommendations may be applicable to facilities undergoing total renovation, and in part to many other hospital renovation, addition, remodeling, and modernization projects (including changes to one or more systems in existing buildings).
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This paper will discuss the Building Agent™ platform, which has been developed and deployed in a campus setting at the National Renewable Energy Laboratory. The Building Agent™ provides aggregated and coherent access to building data, including electric energy, thermal energy, temperatures, humidity, and lighting levels, and occupant feedback, which are displayed in various manners for visitors, building occupants, facility managers, and researchers. This paper focuses on the development of visualizations for facility managers, or an energy performance assurance role, where metered data are used to generate models that provide live predicted ranges of building performance by end use.
Internal DOE Report
Miscellaneous electrical loads (MELs) are building loads that are not related to general lighting, heating, ventilation, cooling, and water heating, and typically do not provide comfort to the building occupants. MELs in commercial buildings account for almost 5% of U.S. primary energy consumption. On an individual building level, they account for approximately 25% of the total electrical load in a minimally code-compliant commercial building, and can exceed 50% in an ultra-high efficiency building such as the National Renewable Energy Laboratory's (NREL) Research Support Facility (RSF). Minimizing these loads is a primary challenge in the design and operation of an energy-efficient building. A complex array of technologies that measure and manage MELs has emerged in the marketplace. Some fall short of manufacturer performance claims, however. NREL has been actively engaged in developing an evaluation and selection process for MELs control, and is using this process to evaluate a range of technologies for active MELs management that will cap RSF plug loads. Using a control strategy to match plug load use to users' required job functions is a huge untapped potential for energy savings.
This series of fact sheets was developed by the U.S. Department of Energy’s Hospital Energy Alliance. These fact sheets help hospital and healthcare institution owners and operators use effective, energy-efficient technologies and practices to decrease energy consumption and its related costs and to address energy-related environmental issues. Each fact sheet covers a particular area of potential savings in healthcare facilities and includes one or more hospital case studies: Building Envelope Fact Sheet, Boilers Fact Sheet, Chillers Fact Sheet, CHP Fact Sheet, Existing Building Commissioning Fact Sheet, Energy Management Program Fact Sheet, Fast Paybacks Fact Sheet, Ground Source Heat Pumps Fact Sheet, HVAC Fact Sheet, Integrated Building Design Fact Sheet, Lighting Fact Sheet, Plug Loads Fact Sheet, Water Efficiency Fact Sheet.
This document provides information on the application of the CBEA site lighting performance specification at some U.S. Department of Energy (DOE) GATEWAY demonstration projects. Because the issues and experiences from the applications vary, this document’s summarization and comparison of the results helps to show the benefits and caveats of an LED application. It also offers guidance for planning an LED application.
The Federal Energy Management Program (FEMP) Outdoor SSL Initiative encourages the federal sector to lead a large-scale implementation effort focused on Solid State Lighting (SSL) application. This fact sheet provides an overview of existing outdoor SSL resources developed by the U.S. Department of Energy’s SSL Program and other federal initiatives, as well as general SSL resources.
This report considers the major potential for lighting-related energy savings for all major exterior areas, including parking lots, streets and roadways, and building-mounted lighting. Discussion covers safety and security challenges that could hinder maximum energy savings. The report discusses the need for good design features—including appropriate lighting levels—that support safety and security elements, such as visual identification capability and effective lighting for security cameras. Lighting issues related to litigation concerns also are part of this reports.
The U.S. Environmental Protection Agency (EPA) developed this Building Upgrade Manual to assist organizations in planning and implementing profitable upgrades. This manual outlines a process for developing a comprehensive energy-management strategy and an integrated approach to upgrading existing buildings. It also provides information on proven energy-efficient technologies that can produce energy savings of 35 percent or more. Chapter six of this publication is devoted to issues related to lighting.