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Electric utilities in the US have initiated forestry projects to conserve energy and to o€set carbon dioxide (CO2) emissions. In 1995, 40 companies raised US$2.5 million to establish the non-pro®t UtiliTree Carbon Company which is now sponsoring eight projects representing a mix of rural tree planting, forest preservation, forest management and research e€orts at both domestic (Arkansas, Louisiana, Mississippi, and Oregon) and international sites (Belize and Malaysia). The projects include extensive external veri®cation. Such forestry projects Ð properly documented, monitored and veri®ed Ð should be a component of domestic and international strategies to address greenhouse gas (GHG) emissions, due to GHG bene®ts,...
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More than 11,500 well records, such as geophysical logs, drilling descriptions, and published hydrogeologic framework information, were evaluated to help characterize the framework of hydrogeologic units in and near Gaines, Terry, and Yoakum Counties, Texas. Additional geophysical data were collected to improve the spatial coverage across the study area and to reduce uncertainty with regard to hydrogeologic unit extents. The evaluation of existing data plus the collection of new geophysical data provided that basis for developoing a refined understanding of how the saturated thickness of the Ogallala and Edwards-Trinity aquifers vary throughout the study area.
With the number of vehicles on the world’s roads expected to grow to 2.9 billion by 2050, steps must be taken to reduce the CO2 emissions from transport. Battery electric vehicles (BEVs) can help achieve this. This study aimed to determine the CO2 emissions stemming from BEV operation in different countries and to compare those CO2 emissions to the emissions from similar vehicles based on internal combustion engines (ICEs). This study selected four ICE-based vehicles, and modeled BEVs based on the specifications of each of these vehicles. The modeled BEVs were run through a simulation to determine their energy consumption. Their energy consumption was combined with data on the CO2 intensity of the power generation...
Categories: Publication; Types: Citation; Tags: Electric, Emissions, Vehicles
Plug-in hybrid electric vehicles (PHEVs) have the potential to be an economic means of reducing direct (or tailpipe) carbon dioxide (CO2) emissions from the transportation sector However, without a Climate policy that places a limit on CO2 emissions from the electric generation sector, the net impact of widespread deployment of PFIEVs on overall US CO2 emissions is not as clear. A comprehensive analysis must consider jointly the transportation and electricity sectors. along with feedbacks to the rest of the energy system. In this paper, we use the Pacific Northwest National Laboratory's MiniCAM model to perform an integrated economic analysis of the penetration of PFIEVs and the resulting impact oil total U.S. CO2...
With the number of vehicles on the world’s roads expected to grow to 2.9 billion by 2050, steps must be taken to reduce the CO2 emissions from transport. Battery electric vehicles (BEVs) can help achieve this. This study aimed to determine the CO2 emissions stemming from BEV operation in different countries and to compare those CO2 emissions to the emissions from similar vehicles based on internal combustion engines (ICEs). This study selected four ICE-based vehicles, and modeled BEVs based on the specifications of each of these vehicles. The modeled BEVs were run through a simulation to determine their energy consumption. Their energy consumption was combined with data on the CO2 intensity of the power generation...
Categories: Publication; Types: Citation; Tags: Electric, Emissions, Vehicles
Mandatory targets for biofuels have led to their rapid global adoption, but ethical problems with their large-scale production are widely reported. Research is underway to find new biofuel technologies that mitigate climate change and can be produced sustainably and economically. Following an 18-month inquiry, the Nuffield Council on Bioethics has developed an ethical framework for biofuels policy-making. Based on a number of widely held ethical values, six ethical principles are introduced that should be considered in biofuels policy-making. Many current biofuels policies fail this ethical ‘test’. An overarching ethical standard for biofuels is proposed that includes the protection of human rights and the environment,...
In order to identify approaches for integrated gasification combined cycle (IGCC) plant optimization it is necessary to analyse where and why the losses in the process occur. Therefore a structured exergy analysis of an IGCC with carbon capture was performed to identify losses on a plant, subsystem and individual component level. The investigation of the IGCC base case revealed an exergetic efficiency of 40%. Thus, 60% of the whole fuel exergy is lost in the process. On the subsystem level it was found that the major loss contributor is the combined cycle followed by the gas treatment section and the gasification island. Furthermore, it was demonstrated that the significance of the losses is higher in upstream processes...
The main goal of the present study is to analyze some of the capabilities and behavior of two types of plug-in cars: battery electric and hydrogen fuel cell hybrid electric, facing different driving styles, different road gradients, different occupation rates, different electrical loads, and different battery's initial state of charge. In order to do that, four vehicles with different power/weight (kW/kg) ratio (0.044 to 0.150) were simulated in the software ADVISOR, which gives predictions of energy consumption, and behavior of vehicle’s power train components (including energy regeneration) along specified driving cycles. The required energy, electricity and/or hydrogen, to overcome the specified driving schedules,...
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This dataset depicts the location of 124 world copper smelters (2 of which are closed and 1 of which is under development) and 4 (low-grade solvent extraction-electrowinning) operations whose product requires further processing to produce refined copper. These data have been compiled from multiple sources and estimates, based upon production and other pertinent information. The data presented in this report can be used with data on annual copper production and on the environmental releases that characterize particular types of processes to estimate environmental residuals from copper production.
The main goal of the present study is to analyze some of the capabilities and behavior of two types of plug-in cars: battery electric and hydrogen fuel cell hybrid electric, facing different driving styles, different road gradients, different occupation rates, different electrical loads, and different battery's initial state of charge. In order to do that, four vehicles with different power/weight (kW/kg) ratio (0.044 to 0.150) were simulated in the software ADVISOR, which gives predictions of energy consumption, and behavior of vehicle’s power train components (including energy regeneration) along specified driving cycles. The required energy, electricity and/or hydrogen, to overcome the specified driving schedules,...
Categories: Publication; Types: Citation; Tags: electric, electricity, power grid
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The Commission regulates four investor owned electric utilities that operate in Wyoming. In addition, the Commission also has regulatory authority over eighteen retail rural electric cooperatives that provide electric service within the state.
This paper compares the potential contribution of solar electric power in the form of photovoltaics to meet future US energy demand with the projected volume of oil estimated to be available in the Arctic National Wildlife Refuge. Such a comparison has practical value since it directly addresses a key policy choice under consideration in the new century, namely, that between one of the most promising untapped oil deposits in the world and one of the most rapidly growing renewable energy options. (C) 2003 Elsevier Ltd. All rights reserved.
    map background search result map search result map Wyoming Public Service Commission Electric Utility Map World copper smelters Data Used to Assess the Hydrogeologic Framework with Emphasis on the Ogallala and Edwards-Trinity Aquifers, in and Near Gaines, Terry, and Yoakum Counties, Texas, 2018 Data Used to Assess the Hydrogeologic Framework with Emphasis on the Ogallala and Edwards-Trinity Aquifers, in and Near Gaines, Terry, and Yoakum Counties, Texas, 2018 Wyoming Public Service Commission Electric Utility Map World copper smelters