The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Worldwide trading markets are becoming increasingly complex and competitive making it increasingly difficult for participants to optimise their trading actions. Electrical trading markets are no exception to this phenomenon and are faced with the additional and combined uncertainties associated with need to continuously balance supply and demand and trading decisions actions which are moving ever...
The UK electricity industry was amongst the first in the world to make the transposition from a nationalised monolithic entity towards a deregulated commercially competitive free market model consisting of suppliers, distributors and generators. This neo political market model has now been in place for over fifteen years and in that time both the commercial markets and physical electrical system have...
Recently, allocations of transmission losses have become a major issue in both regulated and deregulated systems. Two main reasons for this are performance and cost issues. Consequently, there have been a large number of investigations undertaken in the area of transmission loss allocation. The aims of this paper are to investigate several loss allocation methods and then choose the best method, or...
Although its Electricity Act 2002 was annulled by the Constitution Commission in 2004, the government of Indonesia is keep trying to introduce competition in its power sector. This paper try to identify issues around restructured market in order to make suggestion for the Indonesian state own electricity utility to be prepared better in facing the new environment. Issues under consideration are submarkets...
This paper provides a high level overview of the single electricity market (SEM) that has recently been established for the Island of Ireland. The authors of this paper have been involved with this market liberalisation programme since its beginning and provide specialised insight into the development and initial operation of this new market. This new electricity market was especially significant...
This paper presents the Fuzzy C-Means (FCM) clustering method. The FCM technique assigns a degree of membership for each data set to several clusters, thus offering the opportunity to deal with load profiles that could belong to more than one group at the same time. The FCM algorithm is based on minimising a c-means objective function to determine an optimal classification. The simulation of FCM was...
As accurate regional load forecasting is very important for improvement of the management performance of the electric industry, various regional loads forecasting methods have been developed. In this paper we present the development of short term load forecaster using artificial neural network (ANN) models. Three approaches have been undertaken to forecast the load demand up to 24 hours ahead. The...
This paper presents a review of many previous papers on the use of genetic algorithms (GA) for solving the problem of economic load dispatch (ELD) for power systems. The paper will cover several topics, i.e. a brief description of the GA method, the various power system models and topologies solved by the GA method, various GA techniques used for ELD, and hybrids of GA with other techniques for solving...
The government of Indonesia is trying to reform its power sector by introducing competition. This paper tries to identify issues that have arisen around power sector reforms attempted by various countries in the world. Economic and Engineering issues such as; market design, generation adequacy, transmission operation, retail competition, and regulation have been identified as the crucial areas that...
this paper we present an investigation for the short term (up 24 hours) load forecasting of the demand for the South Sulewesi's (Sulewesi Island - Indonesia) Power System, using a multiple linear regression (MLR) method. After a brief analytical discussion of the technique, the usage of polynomial terms and the steps to compose the MLR model will be explained. Report on implementation of MLR algorithm...
With the electricity market liberalisation in Indonesia, the electricity companies will have the right to develop tariff rates independently. Thus, precise knowledge of load profile classifications of customers will become essential for designing a variety of tariff options, in which the tariff rates are in line with efficient revenue generation and will encourage optimum take up of the available...
The inclusion of a significant amount of renewable energy into power systems, which is set to increase significantly in the near future, has resulted in additional constraints on economic load dispatch (ELD) such as more unpredictable ramp rate and the need for additional reserves to accommodate the intermittent nature of the output. This condition may not match with the system load demand in a power...
Recently, allocation transmission losses have become a major issue in both regulated and deregulated system. Two main reasons for this are performance and costs issues. Consequently, there have been a large number of investigations undertaken in the area of transmission loss allocation. These methods encompass a wide variety of techniques ranging from proportional sharing, pro-rata to incremental...
Energy is crucial to our daily lives and to the needs of business and industries. Affordable, sustainable and reliable energy supplies are key objectives of the government's energy policy. But now a days Green electricity (GE) is a generic term for electricity generated from clean, environmentally preferable energy source. Over the last twenty years following privatisation the current energy policy...
Conceptually the fuzzy cognitive agent (FCA) is the novel integration of fuzzy cognitive maps (FCM) and adaptive intelligent agent (AI-Agent) paradigms. FCAs fundamentally differ from traditional rule based AI-Agents as their inference is derived by a unique FCM that encapsulates the agent's beliefs and desires. The benefits of this architecture are two fold; firstly the knowledge elicitation process...
The inclusion of a significant amount of renewable energy into power systems has resulted in additional constraints on economic load dispatch (ELD) to accommodate the intermittent nature of the output. This condition may not match with system load demand or current trading mechanisms in a power system. A genetic algorithm (GA) method using 'negative load' and 'inclusive' approach is proposed and discussed.
The world is becoming increasingly competitive by the action of liberalised national and global markets. In parallel these markets have become increasingly complex making it difficult for participants to optimise their trading actions. In response, many differing computer simulation techniques have been investigated to develop either a deeper understanding of these evolving markets or to create effective...
There exists guarded agreement that climate change is happening and that one cause may be the generation of greenhouse gasses released by the burning fossil fuels. Fossil-fuel fired electricity generation contributes to these emissions, and most western governments now recognise that their reduction offers the best hope of meeting international emission targets. Inevitably this will lead to closure...
The lack of energy supplied in rural areas is a chronic problem. In many developing countries less than 10% of the rural population has access to electricity. Rural electrification by conventional means such as grid extension or the use of diesel generator is very expensive. Because of this obstacle standing in front of conventional grid extension to reach the non-electrified regions, reliable and...
The world is becoming increasingly competitive by the action of liberalised national, regional, or global markets. Electrical power systems are not immune to such change, and many national power systems have are now subject to the influence of overtly neo-liberal market models. The resulting electrical markets are subject to increasingly complex rule bases put in place to ensure that individual consumer...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.