oalib
Search Results: 1 - 10 of 100 matches for " "
All listed articles are free for downloading (OA Articles)
Page 1 /100
Display every page Item
An Economic Assessment of the Reform of Nigerian Electricity Market
Energy and Power , 2012, DOI: 10.5923/j.ep.20120203.01
Abstract: There is no doubt that there is high level of inefficiency in the Nigerian Power sector. The power generation capacity available is far below the estimated growing demand for electricity. This paper therefore critically assessed the proposed reform of the electricity market in Nigeria. It highlighted some of the challenges such as severe electricity crisis due to the appalling state of power infrastructures, double digit transmission losses and low tariffs. An empirical investigation was conducted using a Linear Programming optimization model via General Algebraic Modelling System (GAMS) to analyse the pre and post electricity reform era. The paper concludes that the reform would be beneficial to the country. Albeit, the study identified that an upward review of prices and reduction in transmission losses are essential in incentivising investor but the success of the reform depends on government commitment and huge investment.
Challenges of Renewable Forest Fuels for Green Electricity Market  [PDF]
Teijo Palander, Kalle K?rh?
Smart Grid and Renewable Energy (SGRE) , 2016, DOI: 10.4236/sgre.2016.72005
Abstract: In this study, strategic electricity market scenarios are considered in a grid of Scandinavia. This multiple-objective decision environment includes the allocation of a number of renewable forest fuel procurement chains to a combined heat and power plant in Finland. The decision environment includes also electricity procurement from Sweden and Russia. The environment is further complicated by sequence-dependent operations of the local procurement chains during different periods. Due to the complex nature of the environment, multiple-objective methods cannot be directly used to solve the electricity production problem in a manner that is techno-economically relevant to the forest energy industry. Therefore, local and time-varying parameters were measured in local wood procurement conditions to improve the solution method. Using these measurements the smart decision-support system automatically adjusted the multiple-objective methodology to better describe the combinatorial complexity of the production sector. The properties of this methodology are discussed and three scenarios of how the system works based on local real-world data and optional feed-in tariff of green electricity are presented. The Finnish electricity market is subject to policy decisions regarding green energy production regulations. These decisions should be made on the basis of local techno-economic analysis presented in this study accounting for the effects of forest operations on the electricity production and import.
Towards an Electricity Market Simulator  [cached]
Paulo Trigo,Paulo Marques,Helder Coelho
Journal of Physical Agents , 2009,
Abstract: This paper describes a multi-agent based simulation (MABS) framework to construct an arti cial electric power market populated with learning agents. The arti cial market, named TEMMAS (The Electricity Market Multi-Agent Simulator), explores the integration of two design constructs: i) the speci cation of the environmental physical market properties, and ii) the modeling of the decision-making (deliberative) and reactive agents. TEMMAS is materialized in an experimental setup involving distinct power generator companies which operate in the market and search for the trading strategies that best exploit their generating units’ resources. The experimental results show a coherent market behavior that emerges from the overall simulated environment.
Barriers to Developing Competition in the Polish Electricity and Gas Market  [cached]
Sylwia Slupik
International Business Research , 2012, DOI: 10.5539/ibr.v5n8p160
Abstract: The paper presents main barriers of creating a competitive energy market in Poland. Polish energy and gas sector in space of few recent years underwent breakthrough changes as far as regulations, structure, organisation and ownership are concerned. Drivers of change included the necessity to align national regulations with EU standards through transposition, and creating entities strong enough to finance their own investment outlays. As a result of those changes, both private and public producers and providers can compete for customers whilst using the regulated network infrastructure. Through those changes regulatory bodies were established and some of the following measures were used: TPA rule, accounting unbundling, legal unbundling and functional unbundling, merger & acquisition supervision on the national and regional level, state aid programmes and a range of other instruments facilitating consumer access to competitive power purchase offers concerning energy and natural gas. However, electricity and gas markets still remain dominated by market incumbents plus the competition is still limited, particularly so in the natural gas market. Among barriers impeding development of Polish energy sector and liberalisation of electricity and gas markets are: vertical consolidation in the sector; wrong architecture of the wholesale market; unstable regulatory environment; maintaining retail prices for households regulated; low consumer activity in the energy market.
Game Analysis of the China Wind-farm Investment Market  [cached]
Wenhui Zhao,Haibin Sun,Hui Wang,Quansheng Shi
Journal of Sustainable Development , 2011, DOI: 10.5539/jsd.v4n2p167
Abstract: The global electricity supply from non-hydro renewable energies, such as wind and solar, has being growing at a high rate, and it is expected that this trend persists. In China, Wind power is one of the most mature renewable energy technologies and it is possible to be utilized in large-scale. However, in the long run, the malicious competition will break the rule of the monopoly wind power market under control of electricity utilities in China and prevent the development of Chinese wind power. Reasonable competition of the investment market is a key to promote healthy development of the wind power industries in China. Based on game theory, this paper investigates competitive behavior of the wind-farm investment companies. The competition mechanism and malicious competition behavior of the investment market of the non-asymmetric enterprisers, and the wind-farm investment market are discussed by the Stacklberg model and the Cournot-Nash model, respectively, and moreover, the theoretic analysises are verified to be effective by an example. Furthermore, some policy advices are put forwards to the Chinese wind power investment market.
The policy of consumer protection in the electricity market  [PDF]
Filipovi? Sanja,Tani? Gordan
Economic Annals , 2008, DOI: 10.2298/eka0879157f
Abstract: The provision of a safe and reliable electricity supply has a central place in modern social life. The rise of electricity prices and the process of liberalization of the electricity market are the two main factors which have made it necessary to modify the current traditional ways of protecting vulnerable customer categories. The Internal Energy Market Directives provisions ensure that citizens have access to energy of a specified quality level at reasonable, cost-reflective prices and to the conditions of real competition and free choice. This objective implies intervention due to the fact that some consumer classes are less attractive for the companies (remote consumers, low consumption consumers or low-income consumers). The aim of this paper is to analyze the current forms of vulnerable customer protection from the critical point of view and to point out possibilities for their application in the case of Serbia.
Regulatory Schemes and Investment Behavior in Transmission of Electricity: The Case of Argentina Regulatory Schemes and Investment Behavior in Transmission of Electricity: The Case of Argentina
Clemencia Torres
Revista de Análisis Económico (RAE) , 1995,
Abstract: The objective of this paper is to analyze the impact of the Argentinian regulation of the expantion of the network for high voltage electricity. Argentina reorganized its electricity industry in 1992, including the transmission network and adopted a new regulatory framework. The result for investment in transmission have been mixed so far. The new regulation apparently have not triggered the investment necessary to eliminate local bottlenecks in the transmission system. The persistence of this problems hinders the capability of the industry to ensure reliable and economical electricity in the long run. This paper attemps to explain the reasons for these mixed results. The objective of this paper is to analyze the impact of the Argentinian regulation of the expantion of the network for high voltage electricity. Argentina reorganized its electricity industry in 1992, including the transmission network and adopted a new regulatory framework. The result for investment in transmission have been mixed so far. The new regulation apparently have not triggered the investment necessary to eliminate local bottlenecks in the transmission system. The persistence of this problems hinders the capability of the industry to ensure reliable and economical electricity in the long run. This paper attemps to explain the reasons for these mixed results.
Game theory analysis for carbon auction market through electricity market coupling  [PDF]
Mireille Bossy,Nadia Maizi,Odile Pourtallier
Computer Science , 2014,
Abstract: In this paper, we analyze Nash equilibria between electricity producers selling their production on an electricity market and buying CO2 emission allowances on an auction carbon market. The producers' strategies integrate the coupling of the two markets via the cost functions of the electricity production. We set out a clear Nash equilibrium on the power market that can be used to compute equilibrium prices on both markets as well as the related electricity produced and CO2 emissions released.
Electricity Market Mechanism regarding the Operational Flexibility of Power Plants  [PDF]
Cem Kiyak, Andreas de Vries
Modern Economy (ME) , 2017, DOI: 10.4236/me.2017.84043
Abstract: Electricity market mechanisms designed to steer sustainable generation of electricity play an important role for the energy transition intended to mitigate climate change. One of the major problems is to complement volatile renewable energy sources by operationally flexible capacity reserves. In this paper, a proposal is given to determine prices on electricity markets taking into account the operational flexibility of power plants, such that the costs of long-term capacity reserves can be paid by short-term electricity spot markets. For this purpose, a measure of operational flexibility is introduced enabling to compute an inflexibility fee charging each individual power plant on a wholesale electricity spot market. The total sum of inflexibility fees is accumulated on the spot markets and then can be used to finance a capacity mechanism keeping the necessary reserves to warrant grid reliability. Here each reserve power plant then gets a reliable payment depending on its operational flexibility. The proposal is applied to an exemplary small grid, illustrating its main idea and also revealing the caveat that too high fees paradoxically could create incentives to employ highly flexible power plants on the spot market rather than to run them as backup capacity.
Environmental Protection Investment and Market Value  [PDF]
Jiaojiao Zhang
Modern Economy (ME) , 2019, DOI: 10.4236/me.2019.102027
Abstract:

With the increase of environmental supervision in China, environmental protection investment has become an inevitable investment choice for polluting enterprises. However, whether environmental protection investment can bring value to the enterprise has always been a hot topic of debate. The paper takes the 2008-2016 China A-share heavy polluting industry listed companies as the research object, tests the correlation between environmental protection investment and market value. Using the Ohlson valuation model, it is found that environmental investment has a positive impact on the market value. Further, the paper examines two possible paths of environmental investment impact on market value, and the results show that environmental protection investment increases the earnings persistence, but has no significant impact on the cost of equity capital. Therefore, it is concluded that environmental protection investment is conducive to the increase of market value, and the mechanism of environmental protection investment affecting market value is to improve the sustainability of earnings.

Page 1 /100
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.