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We present the results of a number of PV-grid matching simulations performed using hourly generation data from the Israel Electric Corporation (IEC) for the year 2006, together with corresponding meteorological data from Sede Boqer in the Negev Desert. The principal results of this investigation are: (1) the effective flexibility factor (ff) of the IEC grid was close to ff=0.65, but with a different plant operating strategy, ff could have been considerably higher; (2) for ff=0.65, the largest no-dump PV system could have provided only 2.7% of the annual demand, but for higher flexibilities - up to ff=1 - the percentage penetration could be as high as 17.4%; (3) considerable improvement in penetration can result...
The Southern Appalachian forest region of the U.S.-a region responsible for 23% of U.S. coal production-has 24 billion metric tons of high quality coal remaining of which mountaintop coal mining (MCM) will be the primary extraction method. Here we consider greenhouse gas emissions associated with MCM terrestrial disturbance in the life-cycle of coal energy production. We estimate disturbed forest carbon, including terrestrial soil and nonsoil carbon using published U.S. Environmental Protection Agency data of the forest floor removed and U.S. Department of Agriculture - Forest Service inventory data. We estimate the amount of previously buried geogenic organic carbon brought to the soil surface during MCM using...
The Southern Appalachian forest region of the U.S.-a region responsible for 23% of U.S. coal production-has 24 billion metric tons of high quality coal remaining of which mountaintop coal mining (MCM) will be the primary extraction method. Here we consider greenhouse gas emissions associated with MCM terrestrial disturbance in the life-cycle of coal energy production. We estimate disturbed forest carbon, including terrestrial soil and nonsoil carbon using published U.S. Environmental Protection Agency data of the forest floor removed and U.S. Department of Agriculture - Forest Service inventory data. We estimate the amount of previously buried geogenic organic carbon brought to the soil surface during MCM using...
The Southern Appalachian forest region of the U.S.-a region responsible for 23% of U.S. coal production-has 24 billion metric tons of high quality coal remaining of which mountaintop coal mining (MCM) will be the primary extraction method. Here we consider greenhouse gas emissions associated with MCM terrestrial disturbance in the life-cycle of coal energy production. We estimate disturbed forest carbon, including terrestrial soil and nonsoil carbon using published U.S. Environmental Protection Agency data of the forest floor removed and U.S. Department of Agriculture - Forest Service inventory data. We estimate the amount of previously buried geogenic organic carbon brought to the soil surface during MCM using...
In building a governance regime to address climate change, should we prioritize the development of global institutions or national ones? This paper focuses on two neglected characteristics to inform the governance problem: the incentives for investment in low-carbon energy technology and the influence of historical policy volatility. Examining a case study of an important low-carbon energy technology, wind power, this study finds: (1) policy volatility has been substantial, (2) policy changes were uncorrelated across jurisdictions, suggesting that (3) investors could have substantially reduced their exposure to the risk of policy volatility by operating globally. While it also has downsides, a poorly coordinated...
The Southern Appalachian forest region of the U.S.-a region responsible for 23% of U.S. coal production-has 24 billion metric tons of high quality coal remaining of which mountaintop coal mining (MCM) will be the primary extraction method. Here we consider greenhouse gas emissions associated with MCM terrestrial disturbance in the life-cycle of coal energy production. We estimate disturbed forest carbon, including terrestrial soil and nonsoil carbon using published U.S. Environmental Protection Agency data of the forest floor removed and U.S. Department of Agriculture - Forest Service inventory data. We estimate the amount of previously buried geogenic organic carbon brought to the soil surface during MCM using...
Transition to a sustainable energy future carries uncertainties for all stakeholders, including those who research it. History does not repeat itself in detail, yet comparison with analogous processes already completed or in train could give shape to how we project the future. The author focuses not on the technical change required, but rather on the institutional and cultural changes that would be necessary to generate the political will and the consumer demand that would drive technical change and its widespread adoption. He examines a current crisis for most developed countries—that of old age pension provision, which – though lacking a link with new technology – might have similar social dynamics to an impending...
Ecological and economic systems are open systems that require energy to change the thermodynamic states of materials from naturally occurring to more valued forms. These changes are accompanied by information flows and changes in the order of systems and their surroundings. In this paper, thermodynamics is used to assess these system changes and relate them to the knowledge present in a system. Particular emphasis is given to (1) the fundamental relationships among material, energy and information flows, and changes in order and knowledge, (2) the role of equilibrium and non-equilibrium thermodynamics in assessing system change, (3) the increasing role of material and energy flows through economic systems, and (4)...
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Tags: climate,
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trust
This paper describes a part of our feasibility study on the storage of hydrogen in the form of clathrate hydrates. The specific objective of this paper is to present conceptual designs of hydrogen-hydrate production plants applicable to large-scale in situ storage of hydrogen produced in an industrial complex area or to smaller-scale urban-area storage of hydrogen which is to be transported from the industrial complex area by container trucks. The plants were so designed as to produce either a simple hydrogen hydrate under a pressure of 35 MPa and a temperature of 140 K or a mixed hydrogen + tetrahydrofuran hydrate under a pressure of 30 MPa and a temperature of 223 K. In either case, the rate of hydrogen uptake...
This paper describes a part of our feasibility study on the storage of hydrogen in the form of clathrate hydrates. The specific objective of this paper is to present conceptual designs of hydrogen-hydrate production plants applicable to large-scale in situ storage of hydrogen produced in an industrial complex area or to smaller-scale urban-area storage of hydrogen which is to be transported from the industrial complex area by container trucks. The plants were so designed as to produce either a simple hydrogen hydrate under a pressure of 35 MPa and a temperature of 140 K or a mixed hydrogen + tetrahydrofuran hydrate under a pressure of 30 MPa and a temperature of 223 K. In either case, the rate of hydrogen uptake...
The Southern Appalachian forest region of the U.S.-a region responsible for 23% of U.S. coal production-has 24 billion metric tons of high quality coal remaining of which mountaintop coal mining (MCM) will be the primary extraction method. Here we consider greenhouse gas emissions associated with MCM terrestrial disturbance in the life-cycle of coal energy production. We estimate disturbed forest carbon, including terrestrial soil and nonsoil carbon using published U.S. Environmental Protection Agency data of the forest floor removed and U.S. Department of Agriculture - Forest Service inventory data. We estimate the amount of previously buried geogenic organic carbon brought to the soil surface during MCM using...
This paper analyzes the co-benefits of transport sector electrification in terms of reductions of greenhouse gas and local environmental emissions, improvement in energy security and employment generation during 2015–2050 in the case of Nepal—a developing country with large hydropower potential. A bottom up energy system model of Nepal based on the MARKAL framework was developed to assess the effects of meeting a part of the land transport service demand through electrified mass transport system and electric vehicles. The present study shows that if the share of electricity based transport services is to grow from 10% in 2015 to 35% by 2050, the hydropower generation capacity would have to increase by 495 MW by...
This paper analyzes the co-benefits of transport sector electrification in terms of reductions of greenhouse gas and local environmental emissions, improvement in energy security and employment generation during 2015–2050 in the case of Nepal—a developing country with large hydropower potential. A bottom up energy system model of Nepal based on the MARKAL framework was developed to assess the effects of meeting a part of the land transport service demand through electrified mass transport system and electric vehicles. The present study shows that if the share of electricity based transport services is to grow from 10% in 2015 to 35% by 2050, the hydropower generation capacity would have to increase by 495 MW by...
We present the results of a number of PV-grid matching simulations performed using hourly generation data from the Israel Electric Corporation (IEC) for the year 2006, together with corresponding meteorological data from Sede Boqer in the Negev Desert. The principal results of this investigation are: (1) the effective flexibility factor (ff) of the IEC grid was close to ff=0.65, but with a different plant operating strategy, ff could have been considerably higher; (2) for ff=0.65, the largest no-dump PV system could have provided only 2.7% of the annual demand, but for higher flexibilities - up to ff=1 - the percentage penetration could be as high as 17.4%; (3) considerable improvement in penetration can result...
The Southern Appalachian forest region of the U.S.-a region responsible for 23% of U.S. coal production-has 24 billion metric tons of high quality coal remaining of which mountaintop coal mining (MCM) will be the primary extraction method. Here we consider greenhouse gas emissions associated with MCM terrestrial disturbance in the life-cycle of coal energy production. We estimate disturbed forest carbon, including terrestrial soil and nonsoil carbon using published U.S. Environmental Protection Agency data of the forest floor removed and U.S. Department of Agriculture - Forest Service inventory data. We estimate the amount of previously buried geogenic organic carbon brought to the soil surface during MCM using...
The Southern Appalachian forest region of the U.S.-a region responsible for 23% of U.S. coal production-has 24 billion metric tons of high quality coal remaining of which mountaintop coal mining (MCM) will be the primary extraction method. Here we consider greenhouse gas emissions associated with MCM terrestrial disturbance in the life-cycle of coal energy production. We estimate disturbed forest carbon, including terrestrial soil and nonsoil carbon using published U.S. Environmental Protection Agency data of the forest floor removed and U.S. Department of Agriculture - Forest Service inventory data. We estimate the amount of previously buried geogenic organic carbon brought to the soil surface during MCM using...
The Southern Appalachian forest region of the U.S.-a region responsible for 23% of U.S. coal production-has 24 billion metric tons of high quality coal remaining of which mountaintop coal mining (MCM) will be the primary extraction method. Here we consider greenhouse gas emissions associated with MCM terrestrial disturbance in the life-cycle of coal energy production. We estimate disturbed forest carbon, including terrestrial soil and nonsoil carbon using published U.S. Environmental Protection Agency data of the forest floor removed and U.S. Department of Agriculture - Forest Service inventory data. We estimate the amount of previously buried geogenic organic carbon brought to the soil surface during MCM using...
This paper analyzes the co-benefits of transport sector electrification in terms of reductions of greenhouse gas and local environmental emissions, improvement in energy security and employment generation during 2015–2050 in the case of Nepal—a developing country with large hydropower potential. A bottom up energy system model of Nepal based on the MARKAL framework was developed to assess the effects of meeting a part of the land transport service demand through electrified mass transport system and electric vehicles. The present study shows that if the share of electricity based transport services is to grow from 10% in 2015 to 35% by 2050, the hydropower generation capacity would have to increase by 495 MW by...
A challenge relating to the development of renewable energy in the UK concerns how large companies can foster positive relationships with local communities. The concepts of [`]trust' and [`]fairness' are central to debates around proposed renewable energy developments, however, these concepts are complex, ambiguous and interrelated. In the UK the provision of community benefits stemming from the development of renewable energy projects remains a voluntary activity. This paper presents the findings of a case study of one wind power development and how community benefits associated with this were perceived by the local community throughout various stages of the case study (notably during planning, construction and...
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