This report describes the psychrometric bin analysis that was conducted for the ASHRAE recommended and allowable operating environment zones as well as a modified allowable operating environment, discusses control strategies, and presents examples of energy-efficient data centers using alternative cooling strategies.
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NREL's sustainability vision is to build a laboratory of the future that is committed to sustainability, which is built on a framework of economic viability, environmental health, and public responsibility over the long term through appropriate investment decisions and operating practices.This report shows NREL’s progress in making sustainability an integral part of its corporate culture and providing a global sustainability model
This report presents a set of 15 best practices for owners, designers, and construction teams to reach high-performance goals and maintain a competitive budget. These best practices are based on the recent experiences of the Research Support Facility owner and design-build team for the Research Support Facility (RSF) on the National Renewable Energy Laboratory’s (NREL) campus in Golden, Colorado, and show that achieving this high performance outcomes requires that all key integrated team members understand their opportunities to control capital costs.
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 report highlights the funding opportunities available to rural communities and small buildings. Most of these communities qualify for USDA programs and these incentives and grants can be used to make rural communities more efficient.
The BEDES Strategic Working Group Recommendations document is a guide to how the BEDES Dictionary can be brought to market and provide the services for which it was designed.
The U.S. Department of Energy created the Building Energy Data Exchange Specification (BEDES) to facilitate the exchange of information on building characteristics and energy use in an inexpensive and unambiguous manner.
The BEDES Dictionary 1.0 was developed by DOE to support the analysis of the performance of buildings by providing a common set of terms and definitions for building
characteristics, efficiency measures, and energy use.
There are over 200 energy efficiency loan programs—across 49 U.S. states—administered by utilities, state/local government agencies, or private lenders. This distributed model has led to significant variation in program design and implementation practices including how data is collected and used.
The objective of this report is to take a foundational step towards the establishment of common data collection practices for energy efficiency lending. We review existing practices for data collection for energy efficiency financing programs and, based on discussions with various stakeholders, identify high-priority needs, characterize potential uses for finance program data, and identify use cases that describe how stakeholders use data for key objectives and actions. We address the following topics:
• Rationales for collecting more consistent data from energy efficiency finance programs;
• Identification and discussion of energy efficiency finance program use cases;
• Challenges with collecting information from customers that participate in finance programs; and
• Issues with data collection and aggregation across multiple finance programs.
NREL partnered with two hospitals (MGH and SUNY UMU) to collect data on the energy used for multiple thermal and electrical end-use categories, including preheat, heating, and reheat; humidification; service water heating; cooling; fans; pumps; lighting; and select plug and process loads. Additional data from medical office buildings were provided for an analysis focused on plug loads. Facility managers, energy managers, and engineers in the healthcare sector will be able to use these results to more effectively prioritize and refine the scope of investments in new metering and energy audits.
The energy efficiency community has worked hard to engage lenders and consumers in what is estimated by the Rockefeller Foundation and Deutsche Bank to be a $279 billion market for energy efficiency investment. Great advances have been made in the federal and public sector’s program development arena, yet private sector transaction volume remains frustratingly low. In an effort to understand nuanced obstacles to market participation, ACEEE and Energi Insurance Services convened a group of small to mid-size lenders to discuss opportunities for increasing both lender and consumer participation in the energy efficiency space. Lender representation spanned state and local commercial banks, community banks, community development financial institutions (CDFIs), credit unions, and “green” lenders. This paper presents the obstacles identified in the convening and offers recommendations to the energy efficiency community to foster growth in the market for energy efficiency financing.
"This study, commissioned by the Continental Automated Buildings Association (CABA), and conducted by the New Buildings Institute (NBI), details how existing and emerging building monitoring and control technologies are helping designers, owners, operators and occupants achieve and maintain zero net energy (ZNE) buildings."