Determinants of Reserve Margin Volatility: A New Approach Toward Managing Energy Supply and Demand

2021 ◽  
Author(s):  
Juyong Lee ◽  
Youngsang Cho
Keyword(s):  
Energy Supply ◽  
Supply And Demand ◽  
New Approach

scholarly journals Sustainability Investigation of Vehicles’ CO2 Emission in Hungary

2021 ◽  
Vol 13 (15) ◽  
pp. 8237
Author(s):  
István Árpád ◽  
Judit T. Kiss ◽  
Gábor Bellér ◽  
Dénes Kocsis
Keyword(s):  
Energy Efficiency ◽  
Co2 Emissions ◽  
Energy Supply ◽  
Internal Combustion Engines ◽  
Combustion Engines ◽  
The European Union ◽  
New Approach ◽  
Technology System ◽  
Low Co2

The regulation of vehicular CO2 emissions determines the permissible emissions of vehicles in units of g CO2/km. However, these values only partially provide adequate information because they characterize only the vehicle but not the emission of the associated energy supply technology system. The energy needed for the motion of vehicles is generated in several ways by the energy industry, depending on how the vehicles are driven. These methods of energy generation consist of different series of energy source conversions, where the last technological step is the vehicle itself, and the result is the motion. In addition, sustainability characterization of vehicles cannot be determined by the vehicle’s CO2 emissions alone because it is a more complex notion. The new approach investigates the entire energy technology system associated with the generation of motion, which of course includes the vehicle. The total CO2 emissions and the resulting energy efficiency have been determined. For this, it was necessary to systematize (collect) the energy supply technology lines of the vehicles. The emission results are not given in g CO2/km but in g CO2/J, which is defined in the paper. This new method is complementary to the European Union regulative one, but it allows more complex evaluations of sustainability. The calculations were performed based on Hungarian data. Finally, using the resulting energy efficiency values, the emission results were evaluated by constructing a sustainability matrix similar to the risk matrix. If only the vehicle is investigated, low CO2 emissions can be achieved with vehicles using internal combustion engines. However, taking into consideration present technologies, in terms of sustainability, the spread of electric-only vehicles using renewable energies can result in improvement in the future. This proposal was supported by the combined analysis of the energy-specific CO2 emissions and the energy efficiency of vehicles with different power-driven systems.

scholarly journals Mediterranean Energy Dream and Cultural Planning between Old Layers and New Paradigms

2014 ◽  
Vol 11 ◽  
pp. 489-494
Author(s):  
Emanuela Nan
Keyword(s):  
Global Solution ◽  
Energy Supply ◽  
Reorganization Energy ◽  
Clean Energy ◽  
Energy Resources ◽  
Cultural Planning ◽  
New Approach ◽  
Local Resources ◽  
Production Distribution ◽  
The Mediterranean

In the recent years that the interconnection of the production, distribution and use of energy cannot be considered unconnected to the materials and information chains. A global solution to the problem of energy supply has to be looked for in a new approach taking into account all these factors in dependence of the local resources and characteristics (geographic, urban, cultural etc) of the territories. In areas such as the Mediterranean, where the ability to tap into the huge renewable and clean energy resources, are confronted with the reality of contexts secularly layered and saturated, in which, as perhaps nowhere else, landscapes and scenery of quality and value environmental and town are mixed and interwoven with situations of degradation, worthlessness and abandonment, the reorganization energy is, in this sense, an incredible opportunity to rethink and relaunch.

scholarly journals A rolling horizon optimization framework for the simultaneous energy supply and demand planning in microgrids

2015 ◽  
Vol 155 ◽  
pp. 485-501 ◽  
Author(s):  
Javier Silvente ◽  
Georgios M. Kopanos ◽  
Efstratios N. Pistikopoulos ◽  
Antonio Espuña
Keyword(s):  
Energy Supply ◽  
Supply And Demand ◽  
Rolling Horizon ◽  
Optimization Framework ◽  
Demand Planning ◽  
Rolling Horizon Optimization

Matching Model of Energy Supply and Demand of the Integrated Energy System in Coastal Areas

2020 ◽  
Vol 103 (sp1) ◽  
pp. 983
Author(s):  
Xuejiao Zhao ◽  
Bing Gu ◽  
Fengkai Gao ◽  
Songsong Chen
Keyword(s):  
Energy Supply ◽  
Supply And Demand ◽  
Energy System ◽  
Coastal Areas ◽  
Matching Model ◽  
Integrated Energy System

Solar Energy in Agro-Ecologic Micrometeorology Measurements

2018 ◽  
pp. 141-148
Author(s):  
Ildus Saetgalievich Nurgaliev
Keyword(s):  
Energy Transfer ◽  
Energy Supply ◽  
Material Point ◽  
Diffusion Reaction ◽  
Solar Panels ◽  
New Approach ◽  
Number Of Components ◽  
Advection Diffusion ◽  
Remote Sites ◽  
Different Levels

New approach to the measurements in agro-ecologic micrometeorology is suggested on the bases of renewable solar panels for energy supply to instruments at the remote sites and new turbulent model of the flow of the gases. Analytical dynamic model of the turbulent multi-component flow in the three-layer boundary system is presented. Turbulence is simulated by the non-zero vorticity, but not only. Other mathematical aspects of the turbulence are an introducing new model of the material point and considering a torsion of their trajectories. The generalized advection-diffusion-reaction equation is derived for an arbitrary number of components in the flow. The flows in the layers are objects for matching requirements on the boundaries between the layers. Different types of transport mechanisms are dominant on the different levels of the layers and space scales. The same models of mass and energy transfer are instrumental in simulation rural electrification concepts in general on the bases renewable sources.

Solving Solid Transportation Problems With Multi-Choice Cost and Stochastic Supply and Demand

2018 ◽  
pp. 137-170 ◽  
Author(s):  
Sankar Kumar Roy ◽  
Deshabrata Roy Mahapatra
Keyword(s):  
Stochastic Programming ◽  
Objective Function ◽  
Transportation Problem ◽  
Supply And Demand ◽  
Optimal Solution ◽  
Programming Approach ◽  
Solid Transportation Problem ◽  
New Approach ◽  
Non Linear Programming ◽  
The Cost

In this chapter, the authors propose a new approach to analyze the Solid Transportation Problem (STP). This new approach considers the multi-choice programming into the cost coefficients of objective function and stochastic programming, which is incorporated in three constraints, namely sources, destinations, and capacities constraints, followed by Cauchy's distribution for solid transportation problem. The multi-choice programming and stochastic programming are combined into a solid transportation problem, and this new problem is called Multi-Choice Stochastic Solid Transportation Problem (MCSSTP). The solution concepts behind the MCSSTP are based on a new transformation technique that will select an appropriate choice from a set of multi-choice, which optimize the objective function. The stochastic constraints of STP converts into deterministic constraints by stochastic programming approach. Finally, the authors construct a non-linear programming problem for MCSSTP, and by solving it, they derive an optimal solution of the specified problem. A realistic example on STP is considered to illustrate the methodology.

LONG-TERM ENERGY SUPPLY AND DEMAND PROJECTIONS

OPEC Review ◽  
1977 ◽  
Vol 1 (6) ◽  
pp. 7-21
Author(s):  
Amir H. Maghen ◽  
Ivan Bejarano G.
Keyword(s):  
Energy Supply ◽  
Supply And Demand ◽  
Term Energy
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