scholarly journals Energy Planning for Distributed Generation Energy System: The Optimization Work

10.5772/15260 ◽  
2011 ◽  
Author(s):  
Behdad Kiani
Keyword(s):  
Distributed Generation ◽  
Energy System ◽  
Energy Planning

Approach to the location of distributed generation sources in the structure of electrical networks

2021 ◽  
pp. 75-86
Author(s):  
A. Gai ◽  
◽  
V. Gulevich ◽  
Keyword(s):  
Electric Power ◽  
Quality Indicators ◽  
Distributed Generation ◽  
Power Supply ◽  
Alternative Energy ◽  
Electric Power Industry ◽  
Energy System ◽  
Electrical Network ◽  
Electrical Networks

Today, the electricity supplier is not able to declare the possible level of quality of electricity supply, and the consumer simply does not have the opportunity to buy such "high-quality" electricity. In such conditions, a differentiated approach to tariff formation is inevitable, which has been implemented in practice today, albeit in its infancy. Further improvement of the tariff-forming mechanism is impossible without creating a "flexible" dependence of the tariff on the quality indicators of the consumer's power supply. Quality indicators, in turn, are based, on the one hand, on the methods and approaches for their determination, and on the other, on statistically reliable data on the elements that make up the equipment in the "generation-consumer" chain. In recent years, there has been a tendency to change the concept of development of the electric power industry, since preference is given to the development of sources of distributed generation. Distributed generation is understood as a source of electrical energy directly connected to the distribution electrical network or connected to it by consumers. Ensuring the socio-economic stability of society and a decent quality of life for the population largely depends on the reliability and efficiency of the functioning of the infrastructure for the supply of fuel and energy resources, in particular, electricity. Excessive losses of electricity during its production, transportation and distribution, as well as an unacceptable level of harmful emissions into the atmosphere, are the cause of interruptions in power supply to consumers and even the threat of systemic accidents in the United Energy System (UPS) of the country. The introduction of alternative energy sources in electric power systems, in addition to reducing the harmful impact on the environment and solving the problems associated with waste pollution during electric power generation, will reduce the use of natural resources and relieve the backbone and distribution power lines. As part of the scientific search, an approach was proposed, which is the basis for calculations to determine the optimal installation locations for sources of distributed generation of an average overhead line. The results obtained are presented in the framework of a joint technical meeting of leading specialists of operating enterprises, the customer and the staff of the Department of Power Supply named after V.M. Sinkova NULES of Ukraine.

Towards a 3D Spatial Urban Energy Modelling Approach

2014 ◽  
Vol 3 (3) ◽  
pp. 1-16 ◽  
Author(s):  
Jean-Marie Bahu ◽  
Andreas Koch ◽  
Enrique Kremers ◽  
Syed Monjur Murshed
Keyword(s):  
High Resolution ◽  
Distributed Generation ◽  
Energy Demand ◽  
Energy Use ◽  
Energy Systems ◽  
Energy System ◽  
Heat Energy ◽  
3D City Models ◽  
City Models ◽  
Modelling Approach

Today's needs to reduce the environmental impact of energy use impose dramatic changes for energy infrastructure and existing demand patterns (e.g. buildings) corresponding to their specific context. In addition, future energy systems are expected to integrate a considerable share of fluctuating power sources and equally a high share of distributed generation of electricity. Energy system models capable of describing such future systems and allowing the simulation of the impact of these developments thus require a spatial representation in order to reflect the local context and the boundary conditions. This paper describes two recent research approaches developed at EIFER in the fields of (a) geo-localised simulation of heat energy demand in cities based on 3D morphological data and (b) spatially explicit Agent-Based Models (ABM) for the simulation of smart grids. 3D city models were used to assess solar potential and heat energy demand of residential buildings which enable cities to target the building refurbishment potentials. Distributed energy systems require innovative modelling techniques where individual components are represented and can interact. With this approach, several smart grid demonstrators were simulated, where heterogeneous models are spatially represented. Coupling 3D geodata with energy system ABMs holds different advantages for both approaches. On one hand, energy system models can be enhanced with high resolution data from 3D city models and their semantic relations. Furthermore, they allow for spatial analysis and visualisation of the results, with emphasis on spatially and structurally correlations among the different layers (e.g. infrastructure, buildings, administrative zones) to provide an integrated approach. On the other hand, 3D models can benefit from more detailed system description of energy infrastructure, representing dynamic phenomena and high resolution models for energy use at component level. The proposed modelling strategies conceptually and practically integrate urban spatial and energy planning approaches. The combined modelling approach that will be developed based on the described sectorial models holds the potential to represent hybrid energy systems coupling distributed generation of electricity with thermal conversion systems.

scholarly journals Integrated Energy Planning with a High Share of Variable Renewable Energy Sources for a Caribbean Island

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2193 ◽  
Author(s):  
Dominik Dominković ◽  
Greg Stark ◽  
Bri-Mathias Hodge ◽  
Allan Pedersen
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Economic Cost ◽  
Energy System ◽  
Transport Sector ◽  
Energy Planning ◽  
Energy Sources ◽  
Caribbean Island ◽  
Smart Charging ◽  
Variable Renewable Energy Sources

Although it can be complex to integrate variable renewable energy sources such as wind power and photovoltaics into an energy system, the potential benefits are large, as it can help reduce fuel imports, balance the trade, and mitigate the negative impacts in terms of climate change. In order to try to integrate a very large share of variable renewable energy sources into the energy system, an integrated energy planning approach was used, including ice storage in the cooling sector, a smart charging option in the transport sector, and an excess capacity of reverse osmosis technology that was utilised in order to provide flexibility to the energy system. A unit commitment and economic dispatch tool (PLEXOS) was used, and the model was run with both 5 min and 1 h time resolutions. The case study was carried out for a typical Caribbean island nation, based on data derived from measured data from Aruba. The results showed that 78.1% of the final electricity demand in 2020 was met by variable renewable energy sources, having 1.0% of curtailed energy in the energy system. The total economic cost of the modelled energy system was similar to the current energy system, dominated by the fossil fuel imports. The results are relevant for many populated islands and island nations.

scholarly journals Issues and Potential Solutions to the Clean Heating Project in Rural Gansu

2021 ◽  
Author(s):  
Dehu Qv ◽  
Xiangjie Duan ◽  
Jijin Wang ◽  
Caiqin Hou ◽  
Gang Wang ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Environmental Impact ◽  
Distributed Generation ◽  
Resource Distribution ◽  
Energy System ◽  
Gansu Province ◽  
Economic Effects ◽  
Medium Term ◽  
Rural Energy ◽  
Policy Solutions

Rural clean heating project (RCHP) in China aims to increase flexibility in the rural energy system, enhance the integration of renewable energy and distributed generation, and reduce environmental impact. While RCHP-enabling routes have been studied from a technical perspective, the economic, ecological, regulatory, and policy dimensions of RCHP are yet to be analysed in depth, especially in the underdeveloped areas in China. This paper discusses RCHP in rural Gansu in a multi-dimension approach. We firstly focus on the current issues and challenges of RCHP in rural Gansu. Then the RCHP-enabling areas are briefly zoned into six typical regions based on the resource distribution in Gansu Province, and a matching framework of RCHP is recommended. Then we focus on the economics and sustainability of RCHP-enabling technologies. Based on the medium-term assessment of RCHP in the demonstration provinces, various technical schemes and routes are analysed and compared so as to be adopted in rural Gansu. In addition to technical and economic effects of those schemes, the corresponding ecology, policy, finance, and market implications are also concerned. We briefly discuss how the national regulators incentivise the implementation of RCHP in rural Gansu. Major barriers to RCHP are identified as the sustainability of technology, economy, ecology, policy, finance, and market. Subsequently, some policy solutions to overcome these barriers are proposed.

scholarly journals Wind energy system in Ambocas-Ecuador: distributed generation and energy quality

2021 ◽  
Vol 19 ◽  
pp. 609-613
Author(s):  
O. Cabeza-Gras ◽  
◽  
V. Jaramillo-García ◽  
Keyword(s):  
Distributed Generation ◽  
Wind Farm ◽  
Energy System ◽  
Electricity Production ◽  
Economical Analysis ◽  
Electricity System ◽  
Voltage Drops ◽  
Wind Energy System ◽  
Full Operation

In this communication we present the construction of a wind farm, WF, with 10 MW of nominal power. This WF will increase the quantity and quality of electricity in the area of Ambocas, Loja, Ecuador, strengthen a system with many voltage drops. The place chosen is ideal, because it is long from population, in a hill side near an existing road. Wind is persistent and has a constant orientation all along the year. The generated power will be connected with the electricity system in the Portovelo Substation, which is about 12 km from the WF site. We have calculated the expected electricity production all along the year taking into account all important data to simulate successfully the WF operation in real conditions. We have also modelled the interconnexion of the WF with the substation and its effect in the 69 kV bar. Finally, a brief economical analysis of the project gives an annual average profit higher than 3.5 USD million without taxes, while the inversion would be cancelled in less than 5 years of the 20 ones planned for the WF in full operation.

scholarly journals The oil-based technology and economy: Prospects for the future

2002 ◽  
Vol 69 (415-417) ◽  
pp. 221-226
Author(s):  
Klaus Illum
Keyword(s):  
Czech Republic ◽  
Economic Analysis ◽  
Systems Analysis ◽  
Energy Systems ◽  
Computer Models ◽  
Energy System ◽  
Energy Planning ◽  
Local Energy ◽  
The Czech Republic ◽  
Energy Systems Analysis

Dr Ilium, with degrees in Civil Engineering from the Technical University of Denmark and in Energy Systems and Energy Planning from Aalborg University, has had his own consulting company, ECOConsult, since 2000. He was from 1962 for over a decade mainly occupied with the development of educational programs in computerscience alongside with studies in systems theory and cybernetics at the Danish Academy of Engineering in Copenhagen and Aalborg.Thereafter, as senior Associate Professor (Docent) at the Department of Development and Planning, Aalborg University, he was mainly engaged in the development of methods and computer models for the technological, environmental and economic analysis of alternative scenarios for the development of energy systems and agricultural production systems. He has also been engaged in studies of environmental policies and problems in Central and Eastern European countries, in particular in energy planning in Czechoslovakia/the Czech Republic, and was Programme Manager for the Nordic Training Programme for Energy Experts in the Baltic States, the PROCEED programme. In addition, Dr Ilium has developed comprehensive computer models for: numerical analysis of thermodynamic systems (power plants, cogeneration plants, integrated industrial processes,etc.); energy planning on the national, regional and local energy system level; technological/socio-economic energy systems analysis; economic assessment of alternative energy system projects; flow analysis (nutrients and energy) and economic analysis of agricultural systems. He has developed the Sustainable Energy Systems Analysis Model (SESAM), an advanced, general computer model for the analysis of scenarios for the future development of national, regional or local energy systems which has been used and is presently being used for the integrated technological, environmental, and economic analysis of present and future energy systems infrastructures in Denmark, the Czech Republic, Poland, and Germany. 

scholarly journals Computer application for studies of potentials of renewable energy sources

2021 ◽  
Vol 5 (1) ◽  
pp. 1-7
Author(s):  
Juan Alejandro Martínez Linares ◽  
Antonio Vázquez Pérez ◽  
Miguel Castro Fernández ◽  
Miriam Vilaragut Llanes ◽  
Maria Rodríguez Gámez
Keyword(s):  
Renewable Energy ◽  
Distributed Generation ◽  
Energy Production ◽  
Renewable Energy Sources ◽  
Free Software ◽  
Geographical Information ◽  
Computer Application ◽  
Space Distribution ◽  
Energy Planning ◽  
Energy Sources

Computer science's technologies have come to revolutionize the current era, the distributed generation and the introduction of new alternatives in the conception of the energy production, it is a factor that seen from the energy planning it allows to introduce the renewable energy sources as an element in the development of energetically sustainable territories.  The space distribution of the natural resources that they generate, it has made necessary to develop advanced systems for the studies at the space level. For the necessities of printing an analysis space and territorial of the renewable energy sources studies, a geographical information system of renewable energy sources was designed using free software that offers information of the renewable potentials in the territory. This system is a tool that allows an appropriate way to offers information of the place (longitude and latitude) and the potentials (solar, hydric, wind, and biomass) that are generated in them.

scholarly journals Energy planning tools applied into urban photovoltaic: the importance of compatibilizing with the constructions

2021 ◽  
Vol 19 ◽  
pp. 229-234
Author(s):  
B.B. Freitas ◽  
◽  
L. F. C. Castro ◽  
P. C. M. de Carvalho
Keyword(s):  
Power Plant ◽  
Distributed Generation ◽  
Urban Environments ◽  
Point Of View ◽  
Scenario Generation ◽  
Energy Planning ◽  
Bottom Up ◽  
Planning Tools ◽  
Simulation Scenario

The necessity for an efficient way to develop energy planning in urban environments is increasingly part of the reality of cities. In this sense, tools with the ability to evaluate the installation of distributed generation systems become widely necessary for the elaboration of efficient projects. In this sense, our article aims to evaluate 20 tools from the point of view of urban photovoltaic (PV) planning, considering functionalities such as simulation, scenario generation, bottom-up, availability and application in urban PV; PV is the most widespread power plant in urban environments, with great dissemination capacity.

scholarly journals Heading Towards 100% of Renewable Energy Sources Fraction: a critical overview on Smart Energy Systems planning and flexibility measures

2020 ◽  
Vol 197 ◽  
pp. 01003
Author(s):  
Lorenzo Mario Pastore ◽  
Gianluigi Lo Basso ◽  
Matteo Sforzini ◽  
Livio de Santoli
Keyword(s):  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy System ◽  
Energy Planning ◽  
Energy Sources ◽  
International Studies ◽  
Main Challenge ◽  
Smart Energy Systems ◽  
New Energy ◽  
Flexibility Measures

The growing penetration of non-programmable energy sources will largely contribute to intensify the renewable capacity firming issues. Providing a higher systems flexibility, i.e. the ability to match the supply and the demand sides as much as possible, is the main challenge to cope with, by adopting new energy planning paradigms. In this framework, different combined strategies, aiming at efficiently integrating that large amount of variable RES (VRES), have to be implemented. In the recent years, the Smart Energy Systems (SES) concept has been introduced to overcome the single-sector approach, promoting a holistic and integrated vision. By that approach, it is possible to exploit synergies between different energy sectors so as to identify the best technical options to globally reduce the primary fossil energy consumption. Starting from a quantitative and qualitative analysis of the most recent international studies dealing with the SES approach, the aim of this paper is to critically review and analyse the role of the main potential flexibility measures applied in the energy planning sector. In detail, Power-to-X and Demand Side Management (DSM) application have been considered, highlighting strengths and weaknesses of such strategies to accomplish the ambitious target of 100% renewable. From this literature review, it emerges how a single strategy adoption is not enough to guarantee the required flexibility level for the whole energy system. Indeed, the best configuration can be attained by integrating different options matching all the external constraints.

scholarly journals Energy Vision Strategies for the EU Green New Deal: A Case Study of European Cities

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2194 ◽  
Author(s):  
David Maya-Drysdale ◽  
Louise Krog Jensen ◽  
Brian Vad Mathiesen
Keyword(s):  
Urban Planning ◽  
Energy System ◽  
Analytical Framework ◽  
System Thinking ◽  
Energy Planning ◽  
European Cities ◽  
Integration Strategy ◽  
Level Of Understanding ◽  
Planning Institutions

There are three strategic levels for successful energy planning in cities: 1) Integration strategy for integrating energy planning into urban planning institutions; 2) Practice strategy for developing suitable energy planning practices in urban planning institutions, and 3) Vision strategy for the creation and integration of energy visions and scenarios required for long-term decarbonisation. The vision strategy is critical but not well researched and is the focus of this article. Using Strategic Energy Planning (SEP) as an analytical framework, the vision strategy of eight forerunner European cities are analysed. Some critical elements of SEP include the use of long-term targets, holistic energy system thinking, and retention of scenarios. The results indicate that the level of understanding and practice of the vision strategy is still deficient in the cities. Cities often use the practice of urban planning, which does not fit very well with energy planning, particularly with the vision strategy. The energy planning in the cities mostly focuses on shorter-term goals and actions, and they often abandon energy scenarios once extracted. However, through trial and error, some cities are finding ways forward. The article concludes with several recommendations, particularly that cities need to see scenarios as retainable long-term servants providing information desired by the planner, rather than serving as a guide to the planner.

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