This Technical Support Document (TSD) was developed by the Commercial Buildings Group at NREL, under the direction of the DOE Building Technologies Program. It documents technical analysis and design guidance for grocery stores to achieve whole-building energy savings of at least 50% over ASHRAE Standard 90.1-2004 and represents a step toward determining how to provide design guidance for aggressive energy savings targets.
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The Western Cooling Efficiency Center (WCEC) has developed a set of criteria for test conditions, minimum energy, and water use performance for prototype cooling equipment. The WCEC has identified these conditions as indicative of western state climates. These criteria, named the Western Cooling Challenge (WCC), have been set forth as a challenge to manufacturers to improve the state-of-the-art space cooling products. The National Renewable Energy Laboratory (NREL) is to verify these criteria through laboratory testing at its heating, ventilation, and air-conditioning (HVAC) test facility in Golden, Colorado, which is uniquely suited to accurately measure the cooling performance, energy, and water use of advanced cooling systems.
It is still early in the collection and analysis of energy performance data, but it is already clear that high-performance commercial buildings—some "almost net-zero buildings"—can be constructed cost effectively, providing productive environments for occupants, reducing operating costs, and enhancing the competitiveness of commercial properties.
These are the appendices to the report "Rebuilding Greensburg, Kansas, as a Model Green Community: A Case Study on NREL’s Technical Assistance to Greensburg June 2007 – May 2009".
The new Research Support Facilities (RSF), currently in construction on the campus of the National Renewable Energy Laboratory (NREL), is utilizing a wide variety of energy efficiency measures to reduce energy consumption by 50% over standard commercial buildings. But the goal to achieve a LEED Platinum rating didn’t override a focus on cost. The RSF’s construction costs are competitive with today’s less energy efficient commercial buildings, proof that energy efficiency doesn’t have to come at a premium.
This document represents the final project report for the Self-Correcting Heating, Ventilating and Air-Conditioning (HVAC) Controls Project jointly funded by Bonneville Power Administration (BPA) and the U.S. Department of Energy (DOE) Building Technologies Program (BTP). The project, initiated in October 2008, focused on exploratory initial development of self-correcting controls for selected HVAC components in air handlers.
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.