Cooperative Optimization of Electric Vehicles and Renewable Energy Resources in a Regional Multi-Microgrid System

By integrating renewable energy sources (RESs) with electric vehicles (EVs) in microgrids, we are able to reduce carbon emissions as well as alleviate the dependence on fossil fuels. In order to improve the economy of an integrated system and fully exploit the potentiality of EVs’ mobile energy storage while achieving a reasonable configuration of RESs, a cooperative optimization method is proposed to cooperatively optimize the economic dispatching and capacity allocation of both RESs and EVs in the context of a regional multi-microgrid system. An across-time-and-space energy transmission (ATSET) of the EVs was considered, and the impact of ATSET of EVs on economic dispatching and capacity allocation of multi-microgrid system was analyzed. In order to overcome the difficulty of finding the global optimum of the non-smooth total cost function, an improved particle swarm optimization (IPSO) algorithm was used to solve the cooperative optimization problem. Case studies were performed, and the simulation results show that the proposed cooperative optimization method can significantly decrease the total cost of a multi-microgrid system.

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Indices to Assess the Integration of Renewable Energy Resources on Transmission Systems

Conference Papers in Energy ◽

10.1155/2013/324562 ◽

2013 ◽

Vol 2013 ◽

pp. 1-8 ◽

Cited By ~ 2

Author(s):

Alexandros I. Nikolaidis ◽

Francisco M. Gonzalez-Longatt ◽

C. A. Charalambous

Keyword(s):

Renewable Energy ◽

Power Systems ◽

Renewable Energy Sources ◽

Ghg Emissions ◽

Electrical Network ◽

Transmission Network ◽

Renewable Energy Resources ◽

Continuous Increase ◽

And Control ◽

The Impact

The continuous increase on the penetration levels of Renewable Energy Sources (RESs) in power systems has led to radical changes on the design, operation, and control of the electrical network. This paper investigates the influence of these changes on the operation of a transmission network by developing a set of indices, spanning from power losses to GHG emissions reduction. These indices are attempting to quantify any impacts therefore providing a tool for assessing the RES penetration in transmission networks, mainly for isolated systems. These individual indices are assigned an analogous weight and are mingled to provide a single multiobjective index that performs a final evaluation. These indices are used to evaluate the impact of the integration of RES into the classic WSCC 3-machine, 9-bus transmission network.

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A New Solution to Profit Based Unit Commitment Problem Considering PEVs/BEVs and Renewable Energy Sources

E3S Web of Conferences ◽

10.1051/e3sconf/202018401070 ◽

2020 ◽

Vol 184 ◽

pp. 01070

Author(s):

Ayani Nandi ◽

Vikram Kumar Kamboj

Keyword(s):

Renewable Energy ◽

Electric Vehicles ◽

Production Cost ◽

Unit Commitment ◽

Renewable Energy Sources ◽

Energy Sources ◽

Unit Commitment Problem ◽

Load Demand ◽

Commitment Problem ◽

The Impact

Daily load demand for industrial, residential and commercial sectors are changing day by day. Also, inclusion of e-mobility has totally effected the operations of realistic power sector. Hence, to meet this time varying load demand with minimum production cost is very challenging. The proposed research work focuses on the mathematical formulation of profit based unit commitment problem of realistic power system considering the impact of battery electric vehicles, hybrid electric vehicles and plug in electric vehicles and its solution using Intensify Harris Hawks Optimizer (IHHO). The coordination of plants with each other is named as Unit commitment of plants in which the most economical patterns of the generating station is taken so as to gain low production cost with higher reliability. But with the increase in industrialization has affected the environment badly so to maintain the balance between the generation and environment a new thinking of generating low cost power with high reliability by causing less harm to environment i.e. less emission of flue gases is adopted by considering renewable energy sources.

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Impact of the Renewable Energy Development in Lithuania‘s Energy Economy

European Journal of Sustainable Development ◽

10.14207/ejsd.2019.v8n4p75 ◽

2019 ◽

Vol 8 (4) ◽

pp. 75

Author(s):

Rita Bužinskienė

Keyword(s):

Renewable Energy ◽

Renewable Energy Sources ◽

Research Problem ◽

Energy Sector ◽

Energy Resources ◽

Renewable Energy Resources ◽

Linear Regression Models ◽

Energy Productivity ◽

Energy Economy ◽

The Impact

Paper is characterized by scientific novelty as it involves a very scarce research problem in Lithuanian‘s energy sector, assessing the impact of renewable energy resources on the energy economy. Renewable energy sources have a multiplier effect in spurring the economy and the development of not only the energy sector but also all the supporting activities related to such industry. The impact of the development of renewable energy is one of the factors that develop the quality of technology innovation development. This study includes the impact of renewable energy on the energy economy, using multiple linear regression models. The results of the study have shown that renewable energy resources: wind, sun, water, geothermal and biomass can not always be used together because they compete with each other and therefore reduce the efficiency of the energy economy. In this context, three combinations of renewable energy resources have been developed, which have been adapted to assess the impact of the energy economy on energy productivity and energy intensity. It has been found that the combination of resources of the second model (M2) RE is significant for the efficiency of the energy economy.Keywords: Renewable energy resources; Energy economy; Impact of efficiency

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Model of a building heating system with renewable energy sources

E3S Web of Conferences ◽

10.1051/e3sconf/202020702006 ◽

2020 ◽

Vol 207 ◽

pp. 02006

Author(s):

Nicolay Komitov ◽

Nicolay Shopov ◽

Violeta Rasheva

Keyword(s):

Renewable Energy ◽

Fossil Fuels ◽

Renewable Energy Sources ◽

Wind Farms ◽

Heating System ◽

Energy Sources ◽

Gas Generator ◽

Additional Energy ◽

Photovoltaic Panel ◽

The Impact

The current century is characterized by an increasing use of renewable energy - wind farms, solar parks, bio fuels, etc. Climate change and rising prices of fossil fuels lead to increased investment in renewable energy. This raises the need to examine the impact of various factors on the efficiency of energy production from renewable energy sources. This is related to the development of adequate models and the implementation of appropriate computer systems to manage and control these processes. The present work presents the main aspects of the modelling of a building heating installation using renewable energy sources - a solar photovoltaic panel and a HHO gas generator. The additional energy needed to heat the building is provided by a pellet boiler. An energy balance of the studied building is made taking into account the external and internal temperatures and energy loss. The computer model was developed in order to build a system for process control in the building’s heating system.

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Summary of Environment Impact of Renewable Energy Resources

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.616-618.1133 ◽

2012 ◽

Vol 616-618 ◽

pp. 1133-1136 ◽

Cited By ~ 2

Author(s):

Ji Zhong Zhu ◽

Kwok Cheung

Keyword(s):

Renewable Energy ◽

Nuclear Power ◽

Fossil Fuels ◽

Renewable Energy Sources ◽

Environmental Issues ◽

Energy Utilization ◽

Energy Sources ◽

Renewable Energy Resources ◽

Environment Impact ◽

Environmental Consequences

Every type of energy utilization for electricity generation has environmental consequences. The main consequences of burning fossil fuels and of nuclear power are well-known. Renewable energy sources (wind, solar, biomass, hydroelectric, geothermal, etc.) are generally thought of as harmless, but this doesn’t mean they have no environmental consequences at all. Most of them have a significant aesthetic impact and require large areas of land. Some also have a significant impact on the eco-system (birds, fishes, etc.). This paper summarizes the environmental issues caused by all kinds of renewable energy sources.

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Renewable Energy in the Sustainable Development of Electrical Power Sector: A Review

Energies ◽

10.3390/en14248240 ◽

2021 ◽

Vol 14 (24) ◽

pp. 8240

Author(s):

Wadim Strielkowski ◽

Lubomír Civín ◽

Elena Tarkhanova ◽

Manuela Tvaronavičienė ◽

Yelena Petrenko

Keyword(s):

Sustainable Development ◽

Renewable Energy ◽

Fossil Fuels ◽

Developing Economies ◽

Renewable Energy Sources ◽

Electrical Power ◽

Electric Energy ◽

Power Sector ◽

The Sustainable Development ◽

The Impact

The electrical power sector plays an important role in the economic growth and development of every country around the world. Total global demand for electric energy is growing both in developed and developing economies. The commitment to the decarbonization of economies, which would mean replacing fossil fuels with renewable energy sources (RES) as well as the electrification of transport and heating as a means to tackle global warming and dangerous climate change, would lead to a surge in electricity consumption worldwide. Hence, it appears reasonable that the electric power sector should embed the principles of sustainable development into its functioning and operation. In addition, events such as the recent European gas crisis that have emerged as a result of the massive deployment of renewables need to be studied and prevented. This review aims at assessing the role of the renewable energy in the sustainable development of the electrical power sector, focusing on the energy providers and consumers represented both by businesses and households that are gradually becoming prosumers on the market of electric energy. Furthermore, it also focuses on the impact of renewables on the utility side and their benefits for the grid. In addition, it identifies the major factors of the sustainable development of the electrical power sector.

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Power usage in the transport sector – potential, costs and greenhouse gas abatement of different well-to-wheel pathways

10.5194/egusphere-egu2020-3399 ◽

2020 ◽

Author(s):

Markus Millinger ◽

Philip Tafarte ◽

Matthias Jordan ◽

Alena Hahn ◽

Kathleen Meisel ◽

...

Keyword(s):

Renewable Energy ◽

Greenhouse Gas ◽

Electric Vehicles ◽

Fossil Fuels ◽

Renewable Energy Sources ◽

Ghg Emissions ◽

Energy System ◽

Transport Sector ◽

Greenhouse Gas Abatement ◽

Surplus Power

The increase of variable renewable energy sources (VRE), i.e. wind and solar power, may lead to a certain mismatch between power demand and supply. At the same time, in order to decarbonise the heat and transport sectors, power-based solutions are often seen as promising option, through so-called sector coupling. At times when VRE power supply exceeds demand, the surplus power could be used for producing liquid and gaseous electrofuels. The power is used for electrolysis, producing hydrogen, which can in turn be used either directly or combined with a carbon source to produce hydrocarbon fuels.Here, we analyse the potential development of surplus power for the case of Germany, at an ambitious VRE expansion until 2050 and perform a cost analysis of electrofuels at different production levels using sorted residual load curves. These are then compared to biofuels and electric vehicles with the aid of an optimisation model, considering both cost- and greenhouse gas (GHG)-optimal options for the main transport sectors in Germany.We find that, although hydrocarbon electrofuels are more expensive than their main renewable competitors, i.e. biofuels, they are most likely indispensable in addition for reaching climate targets in transport. However, the electrofuel potential is constrained by the availability of both surplus power and carbon. In fact, the surplus power potential is projected to remain limited even at currently ambitious VRE targets for Germany and carbon availability is lower in an increasingly renewable energy system unless direct air capture is deployed. In addition, as the power mix is likely to contain fossil fuels for decades to come, electrofuels based on power directly from the mix with associated conversion losses would cause higher GHG-emissions than the fossil transport fuel reference until a very high share of renewables in the power source is achieved. In contrast, electric vehicles are a more climate competitive option under the projected power mix with remaining fossil fuel fractions, due to a superior fuel economy and thereby lower costs and emissions.As part of the assessment, we quantify the greenhouse gas abatement costs for different well-to-wheel pathways and provide an analysis and recommendations for a transition to sustainable transport.

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Determining Compatibility of Battery Storage Systems With Hybrid PV-Wind-Diesel Energy Systems

Volume 6: Energy, Parts A and B ◽

10.1115/imece2012-86256 ◽

2012 ◽

Author(s):

Da’Janel Roberts-Smith ◽

Landon Onyebueke

Keyword(s):

Renewable Energy ◽

Hybrid System ◽

Fossil Fuels ◽

Storage Systems ◽

Renewable Energy Sources ◽

Great Promise ◽

Renewable Energy Resources ◽

Battery Storage ◽

Energy Applications ◽

Storage Technology

Renewable energy is the only known source that can suffice the global demand in a sustainable way while preserving human and environmental health. Fossil fuels offer an unparalleled ability to robustly transform simple ideas into lucrative businesses and operations despite its inherent devastation imposed to the ecosystem and energy security. Together, fossil fuels, renewable energy and battery storage technology, offer great promise for an improved quality of life inclusive of global access to environmentally pristine, uninterrupted energy. Hybrid systems can be designed to deliver clean, portable energy cost-effectively, efficiently and reliably while minimizing present-day economic and environmental impact. An improvement in battery storage technology is of paramount importance to design an optimal hybrid system necessary to meet peak demands and compensate for intermittency within renewable energy resources. Various battery types have been developed as the technology of choice for renewable energy applications but compatibility issues of different battery systems to renewable energy sources remain. This study provides a comparative analysis of battery storage systems and introduces a mathematical model for a photovoltaic-wind-diesel hybrid system integrating optimization and performance techniques along with an economic analysis that will be used for further study and future simulation.

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The prevalence of renewable energy in the Russian energy market

E3S Web of Conferences ◽

10.1051/e3sconf/201912404018 ◽

2019 ◽

Vol 124 ◽

pp. 04018

Author(s):

E. A. Konnikov ◽

K. V. Osipova ◽

N. A. Yudina ◽

E.P. Korsak

Keyword(s):

Renewable Energy ◽

Power Supply ◽

Alternative Energy ◽

Fossil Fuels ◽

Renewable Energy Sources ◽

Energy Sources ◽

Energy Market ◽

Alternative Energy Sources ◽

World Energy ◽

The Impact

The energy crisis of 1973-1974 showed that it is difficult to constantly increase the power supply of production, based only on traditional energy sources. The power supply of society is the basis of its scientific and technological progress. It means that it is necessary to introduce unconventional, alternative energy sources more widely. Unlike fossil fuels, unconventional forms of energy are not limited to geologically reserves. Their use and consumption does not lead to the inevitable exhaustion of stocks. However, currently, the reform of world energy markets and increasing the share of renewable energy sources in their structure is a long and innovative process. Lots of countries (Russia in particular) bear significant risks because of reforming their own energy market, which causes a slight increase in the share of renewable energy sources. In this regard, the purpose of this study is to analyse the influence of environmental factors on the development of renewable energy sources in Russia. The result of this study is a system of econometric equations, which allows to evaluate the impact of changes in key drivers of the development of the renewable energy market.

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Research on Climate Adaptability of Energy Conservation Building with Renewable Energy Sources in Hot-Summer and Cold-Winter Zone of China

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.448-453.1289 ◽

2013 ◽

Vol 448-453 ◽

pp. 1289-1296

Author(s):

Hui Zhang ◽

Zhuang Yu

Keyword(s):

Renewable Energy ◽

Energy Saving ◽

Renewable Energy Sources ◽

Research Field ◽

Integrated System ◽

Energy Resources ◽

Building Energy Efficiency ◽

Renewable Energy Resources ◽

Cold Winter ◽

Air Supply

Nowadays, exploiting of renewable energy resources has become an important research field, and it has been paid great attention to all over the world. This paper takes an energy saving renovation engineering of Huazhong University of Science and Technology (HUST) in Wuhan, Hubei province, as a case, and some energy-saving technical measures were put forward, such as Active Dynamic Ventilated Envelope (ADVW), climatic adaptive windows, underground cooling and heat sources, solar building integrated system and under floor air supply system, etc. In order to realize energy saving, land saving, water saving, material saving, environmental protection and reducing pollution, this building makes the best of renewable energy resources in order to realize low energy consumption, and the technical reference was provided for promoting application of renewable energy and building energy efficiency in hot-summer and cold-winter zone of China.

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