To support the Research Support Facility's (RSF) net zero energy goals, NREL’s data center was designed to minimize energy its footprint, without compromising service quality for NREL staff. NREL’s information technology (IT) and building technologies experts were engaged throughout the design process to integrate data center needs into the RSF design. The approach relied on a whole systems design to ensure the data center would have a symbiotic relationship with building mechanical systems and operations, including staff interaction with IT systems.
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Data center energy efficiency is derived from addressing hardware equipment and infrastructure. Less than half the power used by a typical data centers powers its information technology equipment. The other half goes to support infrastructure, including cooling systems, uninterruptible power supply inefficiencies, power distribution losses, and lighting.
Dynamic pricing electricity tariffs are now the default for large customers in California, and provide federal facilities new opportunities to cut their electricity bills and help them meet their energy savings mandates. This fact sheet will help California federal facilities take advantage of these opportunities through “rate-responsive building operation,” which involves designing load management strategies around a facility’s variable electricity rate, using measures that require little or no financial investment. Most facility types can reduce or shift some electric load during times when rates are higher. Facilities that can curtail with a 24-hour notice may be especially good candidates for dynamic pricing programs.
Hines partnered with the Department of Energy (DOE) to develop and implement solutions to retrofit existing buildings to reduce energy consumption by at least 30% versus requirements set by Standard 90.1-2004 of the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE), the American National Standards Institute (ANSI), and the Illuminating Engineering Society of North America (IESNA) as part of DOE’s Commercial Building Partnerships (CBP) Program.
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).
This Fact Sheet provides an overview of the Better Buildings Workforce Guidelines project. The Department of Energy (DOE) and the National Institute of Building Sciences (NIBS) are working with industry stakeholders to develop voluntary national guidelines that will improve the quality and consistency of commercial building workforce training and certification programs for five key energy-related jobs.
Few third-party guidance documents or tools are available for evaluating thermal energy storage (TES) integrated with packaged air conditioning (AC), as this type of TES is relatively new compared to TES integrated with chillers or hot water systems. To address this gap, researchers at the National Renewable Energy Laboratory conducted a project to improve the ability of potential technology adopters to evaluate TES technologies. Major project outcomes included: development of an evaluation framework to describe key metrics, methodologies, and issues to consider when assessing the performance of TES systems integrated with packaged AC; application of multiple concepts from the evaluation framework to analyze performance data from four demonstration sites; and production of a new simulation capability that enables modeling of TES integrated with packaged AC in EnergyPlus. This report includes the evaluation framework and analysis results from the project.
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.
A case study of the overview, process, and results of the re-tuning that was conducted in a building in Arlington, Virginia by Vornado Realty Trust in October 2012. Re-tuning provided the facilities management team with the ability to identify and understand building scheduling opportunities that drove significant, low-cost energy savings. Five measures were conducted, many of which pertained to the HVAC system.
A prescriptive approach to re-tuning small to medium sized commercial buildings including how to understand and collect necessary building information.
This is chapter 2 of 3. The full training can be found at http://buildingretuning.pnnl.gov/small_bldg_training.stm