scholarly journals Control of a local energy complex with renewable energy sources

2020 ◽  
Vol 1683 ◽  
pp. 052026
Author(s):  
F V Molotov ◽  
A G Vaskov ◽  
T A Shestopalova
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Local Energy ◽  
Energy Complex

Uloga i značaj Zajednica obnovljivih izvora energije u energetskoj tranziciji – neka zapažanja

2021 ◽  
Vol XXIII (4) ◽  
pp. 64-69
Author(s):  
Goran Rimac
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
New Technologies ◽  
Production Systems ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Local Energy ◽  
Eu Directive ◽  
Decentralized Energy

Until recently, the prevailing idea was that for the functioning of the energy system it is necessary to be composed of large plants and for energy to move from the centre of production to cities and places of consumption. With the advent of decentralized energy production systems and new technologies for their use, the original model is changing more and more. EU Directive 2018/2001 on the promotion of the use of renewable energy sources (RES) designates “prosumers”, i.e. at the same time both producers and consumers of renewable energy, as well as RES communities, while EU Directive 2019/944 introduced the term “citizen energy communities”, i.e. civil energy communities, provided that this Directive, in addition to the distributive production of electricity from RES, also includes electricity from other sources. EU member states are obliged to adopt their own regulations regarding the implementation of the directives, and after that the appropriate incentive measures. The Energy Communities initiative offers citizens new opportunities in terms of active involvement in energy issues. As they are decentralized RES-based projects, they promote the practice of sustainable energy production and consumption, as well as energy storage and exchange within the community. Traditionally passive consumer becomes an energy “prosumer”, a co-owner of a RES plant and a member of the energy community. There are thousands of so-called RES cooperatives in Europe, which are the most common organizational form of energy communities and can play an important role in the process of decentralization of the energy system. The transition to decentralized energy production has many advantages, namely: the use of local energy sources, increased security of local energy supply, shorter transport distances and reduced losses in energy transmission, encouraging community development and creating local jobs. The purpose of this paper is to bring closer to the general public in Serbia the concept of energy communities, what they are and what their role is, with most of the work dealing with energy communities in the EU.

scholarly journals Determinants of Energy Cooperatives’ Development in Rural Areas—Evidence from Poland

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 319
Author(s):  
Jakub Jasiński ◽  
Mariusz Kozakiewicz ◽  
Maciej Sołtysik
Keyword(s):  
Renewable Energy ◽  
Rural Areas ◽  
Driving Forces ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Mixed Integer ◽  
Energy Sources ◽  
Local Energy ◽  
Energy Deposit ◽  
The Eu

The strategies, plans and legislation on energy market development and decarbonization in the European Union (EU) developed in recent years, such as the directives implementing the package “Clean energy for all Europeans”, aim at promoting not only renewable energy sources, but also new institutions that involve the development of local energy markets and a greater role for citizens in managing their own energy generation. At the same time, Poland remains the economy most dependent on coal and one of the largest air polluters in the EU. In order to minimize this problem and to meet the direction of energy development in the EU, Poland decided to establish, among other things, an energy cooperative. It is intended to fill the gap in the development of the civil dimension of energy on a local scale and at the same time improve efficiency in the use of the potential of renewable energy sources in rural areas. The authors of the paper seek to verify the extent to which this new institution, which is part of the idea of a local energy community, one of the driving forces for the implementation of the objectives and directions of development of “clean energy” set by the EU, has a chance to develop. The research took into account the characteristics of energy producers and consumers in rural areas, economic preferences provided for by law, relating to the functioning of an energy cooperative and the existing alternative solutions dedicated to prosumers. A dedicated mathematical model in the mixed integer programming technology was used to optimize the functioning of an energy cooperative, and more than 5000 simulations were carried out, with a typical optimization task performed as part of the research with about 50,000 variables. The conclusions and simulations make it possible to confirm the thesis that profitable energy cooperatives can be established in rural areas, with the objective of minimizing the sum of energy purchases from the distribution network and losses on the energy deposit (virtual network storage) (the energy deposit (or network deposit) should be understood as energy introduced to the grid during generation surpluses for its subsequent consumption, taking into account the discount factor).

scholarly journals THE COUPLING OF THE SYSTEM DYNAMICS MODEL WITH GIS TO VISUALISE THE POTENTIAL OF RENEWABLE ENERGY

2020 ◽  
Author(s):  
Marika Kacare ◽  
Ieva Pakere ◽  
Armands Grāvelsiņš
Keyword(s):  
Renewable Energy ◽  
System Dynamics ◽  
Spatial Data ◽  
Global Climate ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Model Parameters ◽  
Graphic User Interface ◽  
Local Energy ◽  
Energy Independence

During the current economic growth and the global climate crisis, energy supply is a pressing concern. Local energy sources are an essential part of sustainable development, and they also provide workplaces and energy independence. Various biding legislative documents oblige prioritising renewable energy sources (RES) and focus on green, local energy. Society cannot do such a transition without estimating the available resources and understanding the links among various factors influencing the energy market. The study aims to visualise system dynamics (SD) model parameters using the interactive cartography tool to analyse the potential of renewable energy in Latvia. Data gaps in the model were filled using statistical estimations and ArcGIS Pro spatial analysis. A JavaScript library for interactive maps Leaflet and HTML were used for the graphic user interface. The coupling presented in this paper is not dynamic but provides an insight into the potential implementation of the spatial data into models.

scholarly journals State measures to encourage modernization of fuel and energy complex facilities

2020 ◽  
Vol 13 (4) ◽  
pp. 130-145
Author(s):  
I. A. Guseva ◽  
C. K. Magomedov
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Development ◽  
Energy Sources ◽  
Energy Strategy ◽  
Global Trends ◽  
Best Available Technologies ◽  
Energy Complex ◽  
Technological Modernization ◽  
Environmental Requirements

The article is devoted to the problems of energy development in Russia, taking into account global trends, the trend of increasing the use of renewable energy sources, and increasing environmental requirements. In order to preserve the environment, the modern fuel and energy complex is included in the program of technological modernization, the main direction of which is the introduction of the best available technologies. The article discusses measures to encourage the modernization of fuel and energy facilities, as well as the main provisions of the Energy strategy of Russia

scholarly journals Multi-criterial choice of capacity of power plants based on renewable energy sources and local fuels within local energy system

2021 ◽  
Vol 24 (6) ◽  
pp. 1255-1270
Author(s):  
A. S. Nefedov ◽  
T. N. Yakovkina
Keyword(s):  
Renewable Energy ◽  
Public Opinion ◽  
Power Plant ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Environmental Efficiency ◽  
Energy Sources ◽  
Local Energy ◽  
Generating Capacity ◽  
Capacity Structure

The purpose of the paper is to develop a methodology for multi-criteria selection of the capacity of a group of power plants included in the local power system which use local energy resources and renewable energy sources. To form alternative options for the structure of generating capacities, an approach is proposed. It suggests setting of a number of power levels of the base-load generating plant and power plants using renewable energy sources with subsequent determination of the capacity of the flexing generating plant to cover the remaining part of the load schedule. For multi - criteria comparison of the alternative options of the generating capacity structure, the TOPSIS method is used, which is modified to take into account the uncertainty of the decision-maker's preferences (the modification of the method consists in using fuzzy value functions at the stage of normalizing estimates by criteria). The application of this method is considered on the example of the Okhotsk district of the Khabarovsk territory. The estimated capacity of prospective consumers is 69 MW. Alternative options of the power generation structures include four types of power plants: local coal -fired thermal, solar, wind, and diesel. The multi-criteria comparison of generating capacity structure options is performed using the following criteria: normalized cost of electrical energy, estimation of environmental efficiency, and assessment of public opinion on the consequences of power plant construction. Some of the most promising options for the structure of generating capacities are presented, depending on the values of the weight coefficients of the criteria. If the criterion has the large weight reflecting economic efficiency, the structure with the predominance of thermal power plant energy generation is the best. If the criteria of environmental efficiency and public opinion feature large weight, the best structure is the one with significant generation from a renewable energy source (solar power plant). The coefficients of using the installed capacity of different types of power stations with different structures of generating capacities are determined. It is shown that the proposed methodology provides the obtaining of the options of the generating capacity structure that correspond to expressed preferences, taking into account the uncertainty of the initial information and development scenarios. Promising options for the structure of generating capacities are selected for more detailed further research.

scholarly journals Conceptual aspects of improving the energy efficiency of agricultural complex in conditions of sustainable development

2021 ◽  
pp. 182-188
Author(s):  
O. Drebot ◽  
O. Bendasyuk ◽  
M. Vysochanska ◽  
A. Schavinska
Keyword(s):  
Agricultural Sector ◽  
Raw Materials ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Industrial Complex ◽  
Local Energy ◽  
Energy Complex ◽  
Current State ◽  
New Energy ◽  
Complex Development

The article identifies and analyzes the relevance of the formation of new energy opportunities for the agro-industrial complex (AIC), which will stabilize energy consumption. Theoretical and methodological bases of organizational and economic aspects of realization of bioenergy potential of agrarian sector of economy are analyzed and investigated. Possibilities of biofuel and energy production, possibility of using different types of local energy sources for energy supply are estimated. The problem in the field of regulation and development of the fuel and energy complex and the inconsistency of transformation measures in the energy sector with the methods of reforming the energy industry, agriculture, services and utilities of Ukraine are analyzed. The state, tendencies and strategy of energy complex development are analyzed; the forecast estimation of energy possibility of introduction of new stages of application of renewable energy sources in agriculture is executed. The analysis of the current state of the energy balance of the agricultural sector is carried out, and the topical issues of imperfection of the bioenergy and RES production process are identified. Ways to increase the economic efficiency of energy saving by increasing the capacity of biogeneration of energy, based on local energy sources, taking into account the savings in their use, as well as obtaining additional funds from the sale of electricity at a green tariff. It is recommended to improve and harmonize the production of raw materials for biofuel energy and to introduce control over the reporting of economic entities.

scholarly journals Efficiency of the RES Hybrid Microinstallations Working in Energy Clusters

2020 ◽  
Vol 328 ◽  
pp. 03016
Author(s):  
Sławomir Sowa
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Smart Cities ◽  
Renewable Energy Sources ◽  
Power Industry ◽  
Energy Sector ◽  
Current Status ◽  
Energy Sources ◽  
Local Energy ◽  
Distributed Energy

The energy sector is constantly changing. Electromobility, improvement of energy efficiency, smart cities these are just some of the challenges that the present power industry is facing. The main goal for the power industry is to ensure the energy security of its customers, to develop low-community technologies which are mainly based on renewable energy sources and local raw materials. The transition from a centralized energy sector based mainly on conventional power plants to a distributed energy sector requires constant control and management of the generation and demand for energy. One of the solution existing since 2016 are energy clusters. The concept of their functioning is based on the civil-law agreement of locally operating entities that produce, sell, store and consume electricity, heat and cold. The main purpose of introducing energy clusters is the development of distributed energy. Energy clusters ensure the improvement of local energy security with relatively low outlays and low environmental impact. Technological development and installations based on renewable energy sources make energy clusters a beneficial and cost-effective solution for local energy sector. The article presents the idea of energy clusters functioning, and describes the current status of development. It also includes the hybrid systems characteristics of RES systems as an effective source of energy. The conclusion includes the legitimacy of the energy cluster development based on RES installations.

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