Electricity Markets and Power System Economics

Competition in Power Generation: Ex-ante Analysis of Indonesia’s Electricity Market

Energies ◽

10.3390/en13246741 ◽

2020 ◽

Vol 13 (24) ◽

pp. 6741

Author(s):

Dzikri Firmansyah Hakam ◽

Sudarso Kaderi Wiyono ◽

Nanang Hariyanto

Keyword(s):

Power System ◽

Market Structure ◽

Market Power ◽

Electricity Markets ◽

Electricity Market ◽

Regulatory Reform ◽

Optimal Number ◽

Load Flow ◽

Utility Company ◽

Competitive Electricity Markets

This research optimises the mix and structure of Generation Companies (GenCos) in the Sumatra power system, Indonesia. Market power, indicating the ability to raise prices profitably above the competitive level, tends to be a significant problem in the aftermath of electricity market restructuring. In the process of regulatory reform and the development of competitive electricity markets, it is desirable and practical to establish an efficient number of competitor GenCos. Simulations of a power system account for multi-plant mergers of GenCos subject to a regulatory measure of the Residual Supply Index and the influence of direct current load flow and the topology of the system. This study simulates the Sumatra power system in order to determine the following: optimal market structure, efficient GenCo generation mix, and the optimal number of competitive GenCos. Further, this study seeks to empirically optimise the electricity generation mix and electricity market structure of the Sumatra power system using DC load flow optimisation, market power index, and multi-plant monopoly analysis. The simulations include generation and transmission constraints to represent network constraints. This research is the first to analyse the Sumatra power system using imperfect (Cournot) competition modelling. Furthermore, this study is the first kind to optimise the mix and structure of the Sumatra generation power market. The guidelines and methodology in this research can be implemented in other countries characterised by a monopoly electricity utility company.

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On the Economics of Power System Security in Multi-Settlement Electricity Markets

IEEE Transactions on Power Systems ◽

10.1109/tpwrs.2009.2030398 ◽

2010 ◽

Vol 25 (1) ◽

pp. 284-295 ◽

Cited By ~ 5

Author(s):

Teoman Guler ◽

George Gross ◽

Eugene Litvinov ◽

Ron Coutu

Keyword(s):

Power System ◽

Electricity Markets ◽

System Security ◽

Power System Security

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Electricity market efficiency and voltage stability

10.32920/ryerson.14649300.v1 ◽

2021 ◽

Author(s):

Ayman Helmy Mostafa Elkasrawy

Keyword(s):

Power System ◽

Market Efficiency ◽

Electricity Markets ◽

Electricity Market ◽

Voltage Stability ◽

Electric Power System ◽

Maximum Efficiency ◽

Best Interest ◽

The Relationship ◽

System Layout

Several electricity markets were created in the last two decades by deregulation and restructuring vertically integrated utilities. In order to serve the best interest of participating entities, it is important to operate electricity markets at their maximum efficiency. In most cases, electricity markets were formed to operate on existing physical power systems that had evolved over several decades as vertically integrated utilities. Location of generating stations, large urban load centers and enabling transmission systems were unique to every power system and followed the 'lay of the land'. Depending upon a power system layout, voltage stability and margin to voltage collapse are unique to it. While an electricity market is to be operated efficiently, its optimal generation schedule to supply energy through an electric power system has to be reliable and meet the strict standards including those that relate to voltage stability. This work elicits the relationship between market efficiency and voltage stability. To this end, a formulation and a solution algorithm are presented. Two contrasting 5-bus cases illustrate how the transmission system layout influences the relationship between voltage stability and market efficiency. The IEEE 118-bus system is also used to illustrate this relationship.

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Power System Economics

Electronics and Power ◽

10.1049/ep.1970.0207 ◽

1970 ◽

Vol 16 (6) ◽

pp. 217

Author(s):

T.E. Norris

Keyword(s):

Power System ◽

Power System Economics

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Analysis of Regulatory Documents on the Creation and Operation of Intelligent Power Supply Systems for Rural Consumers

Elektrotekhnologii i elektrooborudovanie v APK ◽

10.22314/2658-4859-2021-68-1-8-15 ◽

2021 ◽

Vol 1 (42) ◽

pp. 8-15

Author(s):

Aleksandr Vinogradov ◽

◽

Anatoliy Seyfullin

Keyword(s):

Power System ◽

Electric Power ◽

Electricity Markets ◽

Power Supply ◽

Electric Power Industry ◽

Distribution Networks ◽

Power Industry ◽

Regulatory Documents ◽

Rural Consumers ◽

Supply Systems

The construction of intelligent power supply systems for rural consumers (microgrids) is a promising concept for the development of the energy infrastructure of agricultural facilities. In the process of designing and operating micro-networks, a large number of technical, organizational and legal issues arise, the correct answer to which aﬀects on the reliability, quality and eﬃciency of electricity supply to agricultural facilities. The analysis of the documentation regulating these processes is of particular relevance. (Research purpose) The research purpose is in analyzing the documentation regulating the construction and operation of intelligent power supply microgrid systems for rural consumers. (Materials and methods) The article reviews regulatory documents in the field of regulation of the electric power industry, distributed generation facilities, renewable energy sources, and the functioning of retail electricity markets. Authors used the method of system analysis, methods of comparisons and analogies, and expert assessments. (Results and discussion) The article presents the issues of functioning of micro-networks of rural consumers as part of the power system, in retail electricity markets; implementation of technological connection and integration of micro- networks into distribution networks. Authors evaluated the regulatory and technical documents regulating the general technical requirements for the design and operation of micro-networks. Domestic and foreign standards for the connection and parallel operation of micro-networks with distribution networks as part of the power system and special documents on micro-networks has been studied. (Conclusions) The article proposes measures for the development of GOST R based on the European IEC TS 62898-1 «Microgrids», harmonized with the requirements of Russian standards, taking into account the features of the Russian electric power industry and agriculture. The article notes the need to make changes to the Russian network codes to ensure the integration of rural micro-networks. The measures of state support aimed at stimulating the spread of intelligent power supply systems for rural consumers were cited.

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Operational Planning and Bidding for District Heating Systems with Uncertain Renewable Energy Production

Energies ◽

10.3390/en11123310 ◽

2018 ◽

Vol 11 (12) ◽

pp. 3310 ◽

Cited By ~ 4

Author(s):

Ignacio Blanco ◽

Daniela Guericke ◽

Anders Andersen ◽

Henrik Madsen

Keyword(s):

Renewable Energy ◽

Power Systems ◽

Power System ◽

Electricity Markets ◽

Electricity Market ◽

Renewable Energy Sources ◽

District Heating ◽

Operational Planning ◽

Solution Approach ◽

The Impact

In countries with an extended use of district heating (DH), the integrated operation of DH and power systems can increase the flexibility of the power system, achieving a higher integration of renewable energy sources (RES). DH operators can not only provide flexibility to the power system by acting on the electricity market, but also profit from the situation to lower the overall system cost. However, the operational planning and bidding includes several uncertain components at the time of planning: electricity prices as well as heat and power production from RES. In this publication, we propose a planning method based on stochastic programming that supports DH operators by scheduling the production and creating bids for the day-ahead and balancing electricity markets. We apply our solution approach to a real case study in Denmark and perform an extensive analysis of the production and trading behavior of the DH system. The analysis provides insights on system costs, how DH system can provide regulating power, and the impact of RES on the planning.

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