Electricity Markets and Renewable Energy Sources – A Smart City Approach

Author(s):  
G. Xydis ◽  
E. Nanaki
Proceedings ◽  
2020 ◽  
Vol 63 (1) ◽  
pp. 26
Author(s):  
Pavel Atănăsoae ◽  
Radu Dumitru Pentiuc ◽  
Eugen Hopulele

Increasing of intermittent production from renewable energy sources significantly affects the distribution of electricity prices. In this paper, we analyze the impact of renewable energy sources on the formation of electricity prices on the Day-Ahead Market (DAM). The case of the 4M Market Coupling Project is analyzed: Czech-Slovak-Hungarian-Romanian market areas. As a result of the coupling of electricity markets and the increasing share of renewable energy sources, different situations have been identified in which prices are very volatile.


2015 ◽  
Vol 10 (1) ◽  
pp. 34-52 ◽  
Author(s):  
Roxana Clodnițchi ◽  
Alexandra Cătălina Chinie

Abstract When talking about the future of Europe we also think about alternative energy sources. It is up to national governments to decide how to encourage investments in this field in order to contribute to the 20-20-20 EU-objective. Until the network delivery cost for electricity produced from renewable sources will be comparable to the cost for energy from traditional sources ("grid parity"), the development of businesses and markets for electricity from renewable sources is going to be driven by support schemes. The state of the grids and the facility of grid-access constitute another two key factors influencing the development of this sector. Last but not least, the question of policy consistency is raised within the business community. Over the past years some support schemes have proved to be more effective than others, and grid conditions have also evolved. Policies supporting the development of renewables also changed at EU-level and at national levels. Based on statistics, scientific literature and the feedback of the business community, this study aims to analyse the development of renewable energy sectors in the European Union by comparing Germany’s and Romania’s experience. Also this study describes the current and expected future market situation in these countries relying on data gained from questionnaires and interviews with specialists in the renewable field.


2020 ◽  
Vol XXIII (1) ◽  
pp. 180-185
Author(s):  
Adela Bâra

Owning several types of generating units requires an optimized schedule to cover the negotiated bilateral contracts. This approach will lead to a better electricity market strategy and benefits for an electricity producer. In this paper, we will simulate the operation of five different generators including generators based on Renewable Energy Sources (such as wind turbines and photovoltaic panels) that belong to an electricity producer. The five generators are modelled considering the specificity of their type and primary energy source. For instance, for renewable energy sources, we will consider the 24-hour generation forecast. The objective function of the optimization process is to obtain an optimal loading of generators, while the constraints are related to the capacity and performance of the generators. The output consisting in a generating unit optimized operation schedule will be further used for day-ahead or balancing market bidding process. Hence, the producer will be able to adequately bid on the future electricity markets knowing the commitment of generators for negotiated bilateral contracts market. The simulations are tested for more than five generators considering the connection to a relational database where more data for generators is stored.


2019 ◽  
Vol 97 ◽  
pp. 01009
Author(s):  
Svetlana Shilkina

Realisation of “Smart city” concept is connected with introduction of activities as to increase in energy efficiency and resource saving in the area of electric utility industry, including for the account of applying renewable energy sources (RES). Introduction of concept elements is economically justified not only in big megapolises, but in minor residential areas, as well. Notwithstanding the growth in power production with the employment of sun and wind technologies, the share of RES-based power generating plants in Russia, remains inconsiderable and amounts to approximately 0.1% of the total registered output of country’s power sources. Development of this perspective sphere is mainly carried out in those Russian regions where diesel fuel is used at very high potential capacities of the sun and wind power. Projects as to RES development in Russia are economically substantiated for isolated power-engineering systems, their introduction allows to cut consumption rate of expensive diesel fuel which is environmentally unfriendly. The estimates as referred herein, evidence a necessity to substitute elements of power-generating equipment of diesel-powered plants with solar-power farms. Development of renewable energy-generating industry in the country must be facilitated, by accelerated introduction of this resource in the regions with autonomous power-supply, where RES provides a fairly good economic effect.


2017 ◽  
Author(s):  
Fridrik M. Baldursson ◽  
Julia Bellenbaum ◽  
Ewa Lazarczyk ◽  
Lenja Niesen ◽  
Christoph Weber

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2605 ◽  
Author(s):  
Rodríguez-García ◽  
Ribó-Pérez ◽  
Álvarez-Bel ◽  
Peñalvo-López

A transition to a sustainable energy system is essential. In this context, smart grids represent the future of power systems for efficiently integrating renewable energy sources and active consumer participation. Recently, different studies were performed that defined the conceptual architecture of power systems and their agents. However, these conceptual architectures do not overcome all issues for the development of new electricity markets. Thus, a novel conceptual architecture is proposed. The transactions of energy, operation services, and economic flows among the agents proposed are carefully analysed. In this regard, the results allow setting their activities’ boundaries and state their relationships with electricity markets. The suitability of implementing local electricity markets is studied to enforce competition among distributed energy resources by unlocking all the potential that active consumers have. The proposed architecture is designed to offer flexibility and efficiency to the system thanks to a clearly defined way for the exploitation of flexible resources and distributed generation. This upgraded architecture hereby proposed establishes the characteristics of each agent in the forthcoming markets and studies to overcome the barriers to the large deployment of renewable energy sources.


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