Estimates Of U S Commercial Building Electricity Intensity Trends
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Estimates Of U S Commercial Building Electricity Intensity Trends
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Author : David B. Belzer
language : en
Publisher:
Release Date : 2004
Estimates Of U S Commercial Building Electricity Intensity Trends written by David B. Belzer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
This report examines measurement issues related to the amount of electricity used by the commercial sector in the U.S. and the implications for historical trends of commercial building electricity intensity (kWh/sq. ft. of floor space). The report compares two (Energy Information Administration) sources of data related to commercial buildings: the Commercial Building Energy Consumption Survey (CBECS) and the reporting by utilities of sales to commercial customers (survey Form-861). Over past two decades these sources suggest significantly different trend rates of growth of electricity intensity, with the supply (utility)-based estimate growing much faster than that based only upon the CBECS. The report undertakes various data adjustments in an attempt to rationalize the differences between these two sources. These adjustments deal with: 1) periodic reclassifications of industrial vs. commercial electricity usage at the state level and 2) the amount of electricity used by non-enclosed equipment (non-building use) that is classified as commercial electricity sales. In part, after applying these adjustments, there is a good correspondence between the two sources over the the past four CBECS (beginning with 1992). However, as yet, there is no satisfactory explanation of the differences between the two sources for longer periods that include the 1980s.
Analysis Of Us Commercial Building Energy Use Trends 1972 1991
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Author :
language : en
Publisher:
Release Date : 1994
Analysis Of Us Commercial Building Energy Use Trends 1972 1991 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Over the past two decades energy consumption in commercial buildings has been the fastest growing segment among the major end-use sectors in the US. This paper provides a decomposition of the major factors behind the trends in commercial energy use over this period. It examines the impact on overall commercial sector energy intensity from: (1) new buildings, (2) changes in the composition of buildings by geographic region and building type, (3) the growth in office equipment and computers, and (4) the influence of several common envelope conservation measures. A statistical decomposition of historical monthly electricity and gas consumption data is developed to separate energy use into heating, cooling, and ventilation (HVAC) and other components (non-HVAC). This data is then used in conjunction with historical commercial building floor space estimates to derive end-use intensities for these components of energy consumption. Deterministic analyses are performed to estimate the impacts of other factors. The impact of new buildings is measured by estimating the average improvement in heating efficiencies for buildings built after 1980. The effect of building composition on aggregate commercial building energy intensity is based upon estimates of historical floor space by building type and region and building-specific intensities derived from the 1989 Commercial Building Energy Consumption Survey (CBECS). Stocks of various types of office equipment were constructed from industry statistics and independent surveys. The stocks of selected office equipment were combined with estimates of unit energy consumption to estimate the impact on total commercial electricity consumption. For estimating changes in energy intensity due to the building retrofits, the study utilizes a new energy simulation tool developed as part of the Facility Energy Decision Screening (FEDS) system for the US Department of Energy.
Real Prospects For Energy Efficiency In The United States
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2010-06-10
Real Prospects For Energy Efficiency In The United States written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-06-10 with Science categories.
America's economy and lifestyles have been shaped by the low prices and availability of energy. In the last decade, however, the prices of oil, natural gas, and coal have increased dramatically, leaving consumers and the industrial and service sectors looking for ways to reduce energy use. To achieve greater energy efficiency, we need technology, more informed consumers and producers, and investments in more energy-efficient industrial processes, businesses, residences, and transportation. As part of the America's Energy Future project, Real Prospects for Energy Efficiency in the United States examines the potential for reducing energy demand through improving efficiency by using existing technologies, technologies developed but not yet utilized widely, and prospective technologies. The book evaluates technologies based on their estimated times to initial commercial deployment, and provides an analysis of costs, barriers, and research needs. This quantitative characterization of technologies will guide policy makers toward planning the future of energy use in America. This book will also have much to offer to industry leaders, investors, environmentalists, and others looking for a practical diagnosis of energy efficiency possibilities.
End Use Energy Consumption Estimates For Us Commercial Buildings 1989
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Author :
language : en
Publisher:
Release Date : 1993
End Use Energy Consumption Estimates For Us Commercial Buildings 1989 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
An accurate picture of how energy is used in the nation's stock of commercial buildings can serve a variety of program planning and policy needs within the Department of Energy, by utilities, and other groups seeking to improve the efficiency of energy use in the building sector. This report describes an estimation of energy consumption by end use based upon data from the 1989 Commercial Building Energy Consumption Survey (CBECS). The methodology used in the study combines elements of engineering simulations and statistical analysis to estimate end-use intensities for heating, cooling, ventilation, lighting, refrigeration, hot water, cooking, and miscellaneous equipment. Billing data for electricity and natural gas were first decomposed into weather and nonweather dependent loads. Subsequently, Statistical Adjusted Engineering (SAE) models were estimated by building type with annual data. The SAE models used variables such as building size, vintage, climate region, weekly operating hours, and employee density to adjust the engineering model predicted loads to the observed consumption. End-use consumption by fuel was estimated for each of the 5,876 buildings in the 1989 CBECS. The report displays the summary results for eleven separate building types as well as for the total US commercial building stock.
Effective Tracking Of Building Energy Use
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2012-04-30
Effective Tracking Of Building Energy Use written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-04-30 with Science categories.
The United States is responsible for nearly one-fifth of the world's energy consumption. Population growth, and the associated growth in housing, commercial floor space, transportation, goods, and services is expected to cause a 0.7 percent annual increase in energy demand for the foreseeable future. The energy used by the commercial and residential sectors represents approximately 40 percent of the nation's total energy consumption, and the share of these two sectors is expected to increase in the future. The Commercial Buildings Energy Consumption Survey (CBECS) and Residential Energy Consumption Survey (RECS) are two major surveys conducted by the Energy Information Administration. The surveys are the most relevant sources of data available to researchers and policy makers on energy consumption in the commercial and residential sectors. Many of the design decisions and operational procedures for the CBECS and RECS were developed in the 1970s and 1980s, and resource limitations during much of the time since then have prevented EIA from making significant changes to the data collections. Effective Tracking of Building Energy Use makes recommendations for redesigning the surveys based on a review of evolving data user needs and an assessment of new developments in relevant survey methods.
Memorie Van Hooft Ingelanden Dijckgraef Ende Heemraden Van De Zijpe Dienende Tot Nader Adstructie Van Der Selver Versoeck By Requeste Gedaen Aen De Ed Groot Mo Heeren Staten Van Hollandt Ende West Vrieslandt
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Author :
language : en
Publisher:
Release Date : 1697
Memorie Van Hooft Ingelanden Dijckgraef Ende Heemraden Van De Zijpe Dienende Tot Nader Adstructie Van Der Selver Versoeck By Requeste Gedaen Aen De Ed Groot Mo Heeren Staten Van Hollandt Ende West Vrieslandt written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1697 with categories.
International Energy Outlook
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Author :
language : en
Publisher:
Release Date : 1986
International Energy Outlook written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Energy consumption categories.
Commercial Buildings Energy Consumption Survey
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Author :
language : en
Publisher:
Release Date : 1989
Commercial Buildings Energy Consumption Survey written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Commercial buildings categories.
Forecasting U S Electricity Demand
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Author : Adela Maria Bolet
language : en
Publisher: Routledge
Release Date : 2019-08-30
Forecasting U S Electricity Demand written by Adela Maria Bolet and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-30 with Political Science categories.
Although the energy headlines of 1985 proclaim the waning of OPEC, the collapse of oil prices, and the demise of the nuclear power industry, few policy analysts are examining the dynamic challenges and opportunities that may confront the electric power industry during the remainder of this century. In this pioneering work, Adela Maria Bolet attempts to do exactly this, namely, to reconcile the differences among forecasters as to the future of electricity demand in the industrial, commercial, and residential sectors.
Monthly Energy Review
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Author :
language : en
Publisher:
Release Date :
Monthly Energy Review written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Petroleum industry and trade categories.