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.
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The Research Support Facility is designed to be one of the world's largest net-zero energy buildings. It incorporates new technologies and techniques and draws on centuries-old concepts. Its operable windows allow natural ventilation. It monitors indoor and outdoor temperatures and displays messages on each computer about opening or closing windows.
This case study describes the National Renewable Energy Laboratory's (NREL) data center as a showcase of energy efficiency. Most of what NREL has done can be replicated by clients; however, two design approaches are climate-dependent: near-full reliance on outside air for cooling, and photovoltaic arrays for power.
At the time this Wall Street Journal article was published, the National Renewable Energy Laboratory was midway through construction of a $64 million project to be the greenest office building in the nation. This article explores efforts by architects and engineers who spent hundreds of hours calculating the energy use of every aspect of the building, from the elevator to the exit signs.
An energy-efficient data center includes targets for its power usage effectiveness (<1.2) and energy resource efficiency (< 0.9). It should be designed with hot isle–cold isle separation, use free cooling (economizer) and evaporative cooling when available, minimize fan energy, and use the most energy-efficient equipment possible.
The U.S. Department of Energy hopes lessons learned from the Research Support Facility will help guide green-construction practices around the world. Outside experts in efficient construction point out that some of the technology used at NREL is best suited for high-sunlight, low-humidity climates such as Colorado and would not work nearly as well elsewhere. The building also demands a lot from its employees, who must adjust to fluctuating temperatures throughout the day and pop up from their desks to open and shut windows; a workforce less dedicated to energy efficiency might rebel.
This case study highlights the design, implementation strategies, and continuous performance monitoring of NREL's Research Support Facility data center.
This article describes many energy efficiency features of the Research Support Facility and the adjustments employees need to make.
This case study details the design and operations of the National Renewable Energy Laboratory (NREL) Research Support Facility data center and its contributions to energy efficiency.
McGraw Hill Construction Continuing Education Article December 2010 - This article discusses the energy efficiency and cost competitiveness of the Research Support Facility.