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Featured researches published by Marla Sanchez.


Energy Policy | 1998

Miscellaneous electricity in US homes: Historical decomposition and future trends

Marla Sanchez; Jonathan G. Koomey; Mithra Moezzi; Alan Meier; Wolfgang Huber

This article assesses the importance of the residential miscellaneous electricity end use. Miscellaneous electricity is one of the largest and fastest growing residential end uses. Consumer electronics and halogen torchiere lamps are primary catalysts of end use growth. Approximately half of all consumer electronics energy is consumed while in standby mode. Policy actions aimed at reducing miscellaneous electricity use include reducing standby losses, replacing halogen torchiere models with an efficient CFL model, and improving the efficiency of fans for fuel-fired furnaces.


Lawrence Berkeley National Laboratory | 2006

2006 Status Report Savings Estimates for the ENERGY STAR(R) Voluntary Labeling Program

Marla Sanchez; Carrie A. Webber; Richard E. Brown; Gregory Homan

ENERGY STAR(R) is a voluntary labeling program designed to identify and promote energy-efficient products, buildings and practices. Operated jointly by the Environmental Protection Agency (EPA) and the U.S. Department of Energy (DOE), ENERGY STAR labels exist for more than thirty products, spanning office equipment, residential heating and cooling equipment, commercial and residential lighting, home electronics, and major appliances. This report presents savings estimates for a subset of ENERGY STAR program activities, focused primarily on labeled products. We present estimates of the energy, dollar and carbon savings achieved by the program in the year 2002, what we expect in 2003, and provide savings forecasts for two market penetration scenarios for the period 2003 to 2020. The target market penetration forecast represents our best estimate of future ENERGY STAR savings. It is based on realistic market penetration goals for each of the products. We also provide a forecast under the assumption of 100 percent market penetration; that is, we assume that all purchasers buy ENERGY STAR-compliant products instead of standard efficiency products throughout the analysis period.


Lawrence Berkeley National Laboratory | 2008

Savings estimates for the United States Environmental Protection Agency?s ENERGY STAR voluntary product labeling program

Marla Sanchez; Richard E. Brown; Gregory Homan; Carrie A. Webber

ENERGY STAR is a voluntary energy efficiency-labeling program operated jointly by the United States Department of Energy and the United States Environmental Protection Agency (US EPA). Since the program inception in 1992, ENERGY STAR has become a leading international brand for energy efficient products. ENERGY STARs central role in the development of regional, national, and international energy programs necessitates an open process whereby its program achievements to date as well as projected future savings are shared with committed stakeholders. Through 2006, US EPA?S ENERGY STAR labeled products saved 4.8 EJ of primary energy and avoided 82 Tg C equivalent. We project that US EPA?S ENERGY STAR labeled products will save 12.8 EJ and avoid 203 Tg C equivalent over the period 2007-2015. A sensitivity analysis examining two key inputs (carbon factor and ENERGY STAR unit sales) bounds the best estimate of carbon avoided between 54 Tg C and 107 Tg C (1993 to 2006) and between 132 Tg C and 278 Tg C (2007 to 2015).


Lawrence Berkeley National Laboratory | 2010

Calendar Year 2007 Program Benefits for ENERGY STAR Labeled Products

Marla Sanchez; Gregory Homan; Richard E. Brown

ENERGY STAR is a voluntary energy efficiency-labeling program operated jointly by the United States Department of Energy and the United States Environmental Protection Agency (US EPA). Since the program inception in 1992, ENERGY STAR has become a leading international brand for energy efficient products. ENERGY STARs central role in the development of regional, national, and international energy programs necessitates an open process whereby its program achievements to date as well as projected future savings are shared with committed stakeholders. Through 2007, the program saved 7.1 Quads of primary energy and avoided 128 MtC equivalent. The forecast shows that the program is expected to save 21.2 Quads of primary energy and avoid 375 MtC equivalent over the period 2008-2015. The sensitivity analysis bounds the best estimate of carbon avoided between 84 MtC and 172 MtC (1993 to 2007) and between 243 MtC and 519 MtC (2008 to 2015).


ieee international symposium on sustainable systems and technology | 2010

Improving methods to estimate energy and carbon footprints of global telecommunications

Marla Sanchez; Scott Matthews; Chris Weber

Companies are increasingly estimating and reporting their greenhouse gas emissions (GHGs) for voluntary and mandatory purposes. This paper includes a review of the quality of company GHG reporting for the global telecommunications sector. We find that company emissions vary significantly, from 3 metric tons CO2 equivalent per million dollars operating revenue (MTCO2e/


Lawrence Berkeley National Laboratory | 2010

Calendar Year 2007 Program Benefits for U.S. EPA Energy Star Labeled Products: Expanded Methodology

Marla Sanchez

M) to 215 MTCO2e/


Lawrence Berkeley National Laboratory | 2008

EPA ENERGY STAR: Tackling Growth in Home Electronics and Small Appliances

Marla Sanchez; Richard E. Brown; Gregory Homan

M. We find that company reported emissions can also vary significantly annually (over 50% in some cases). Some of this variance is due to boundary issues, exclusion of in-scope emissions, unit conversion issues, and differences in electricity GHG intensity. We also find that focusing on Scope 1 and Scope 2 emissions may distort a companys GHG estimates by ignoring Scope 3 emissions, which are likely a significant part of its overall GHG footprint. We end by offering recommendations on improving reporting methods.


Energy Policy | 2008

Savings estimates for the United States Environmental Protection Agency's ENERGY STAR voluntary product labeling program

Marla Sanchez; Richard E. Brown; Carrie Webber; Gregory Homan

This report provides a top-level summary of national savings achieved by the Energy Star voluntary product labeling program. To best quantify and analyze savings for all products, we developed a bottom-up product-based model. Each Energy Star product type is characterized by product-specific inputs that result in a product savings estimate. Our results show that through 2007, U.S. EPA Energy Star labeled products saved 5.5 Quads of primary energy and avoided 100 MtC of emissions. Although Energy Star-labeled products encompass over forty product types, only five of those product types accounted for 65percent of all Energy Star carbon reductions achieved to date, including (listed in order of savings magnitude) monitors, printers, residential light fixtures, televisions, and furnaces. The forecast shows that U.S. EPA?s program is expected to save 12.2 Quads of primary energy and avoid 215 MtC of emissions over the period of 2008?2015.


Lawrence Berkeley National Laboratory | 2007

Space Heaters, Computers, Cell Phone Chargers: How Plugged In Are Commercial Buildings?

Marla Sanchez; Carrie A. Webber; Richard E. Brown; John F. Busch; Margaret J. Pinckard; Judy A. Roberson

Over a decade ago, the electricity consumption associated with home electronics and other small appliances emerged onto the global energy policy landscape as one of the fastest growing residential end uses with the opportunity to deliver significant energy savings. As our knowledge of this end use matures, it is essential to step back and evaluate the degree to which energy efficiency programs have successfully realized energy savings and where savings opportunities have been missed. For the past fifteen years, we have quantified energy, utility bill, and carbon savings for US EPA?s ENERGY STAR voluntary product labeling program. In this paper, we present a unique look into the US residential program savings claimed to date for EPA?s ENERGY STAR office equipment, consumer electronics, and other small household appliances as well as EPA?s projected program savings over the next five years. We present a top-level discussion identifying program areas where EPA?s ENERGY STAR efforts have succeeded and program areas where ENERGY STAR efforts did not successfully address underlying market factors, technology issues and/or consumer behavior. We end by presenting the magnitude of ?overlooked? savings.


Archive | 2009

ASSESSING TRENDS IN THE ELECTRICAL EFFICIENCY OF COMPUTATION OVER TIME

Jonathan Koomey; Stephen R. Berard; Marla Sanchez; Henry Wong

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Richard E. Brown

Lawrence Berkeley National Laboratory

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Carrie A. Webber

Lawrence Berkeley National Laboratory

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Gregory Homan

Lawrence Berkeley National Laboratory

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Jonathan G. Koomey

Lawrence Berkeley National Laboratory

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Judy A. Roberson

Lawrence Berkeley National Laboratory

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Alan Meier

Lawrence Berkeley National Laboratory

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Bruce Nordman

Lawrence Berkeley National Laboratory

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John F. Busch

Lawrence Berkeley National Laboratory

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