scholarly journals Research on Green Power Dispatching Based on an Emergy-Based Life Cycle Assessment

Processes ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 114
Author(s):  
Tao Li ◽  
Yi Miao Song ◽  
Ang Li ◽  
Jing Shen ◽  
Chao Liang ◽  
...  
Keyword(s):  
Power Generation ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Power Plants ◽  
Clean Energy ◽  
Green Energy ◽  
Environmental Indicators ◽  
Cleaner Production ◽  
Power Dispatching ◽  
Whole Life Cycle

Environmental protection pressures and green energy strategies have created major challenges for a cleaner production of China’s coal-fired power generation. Although China’s electric power dispatching department has tried to prioritize clean energy, the current dispatching models lack environmental indicators related to coal-fired power generation. The main purpose of this paper is to provide a comprehensive environmental indicator for the cleanliness evaluation of coal-fired power plants. In this paper, the (Emergy-based Life Cycle Assessment) Em-LCA method is used to measure and analyze environmental related resource consumption, socio-economic investment, and emissions in the whole life cycle of coal-fired power plants. At the same time, based on the above three environmental impacts in the whole life cycle, this paper constructs the (Em-LCA based Cleaner Production Comprehensive Evaluation) ECPCE index to guide a green dispatching plan. By comparing the calculation results of the index, this paper finds that there are differences in the environmental advantages of different generating units in green dispatching, which are closely related to the process management of coal-fired power plants in production and the environment.

Incentives and Constraints in the Development of Alternative Energy at the Local Level: International and Russian Experience

2017 ◽  
Vol 7 (3) ◽  
pp. 274-289
Author(s):  
Мария Терешина ◽  
Mariya Tereshina ◽  
Александр Вальвашов ◽  
Aleksandr Val'vashov
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Alternative Energy ◽  
Power Plants ◽  
Local Level ◽  
Clean Energy ◽  
Energy Development ◽  
Green Energy ◽  
Infrastructure Projects ◽  
Regions Of Russia

The purpose of the study was the comparative analysis of Russian and foreign practices of alternative energy development at the local level. The object of this research is the set of administrative influences that act as determinants of the formation of generation based on renewable energy as part of sustainable development of local communities and green economy. The subject of study is mechanisms, tools and practices of development of alternative energy. The main methods of research work are general theoretical research methods: analysis and synthesis, as well as methods of measurement, comparison, grouping and graphics. To assess the "gaps" between the current and target status of "green" energy as a set of controlled subsystems, the authors propose a method of GAP analysis, at this the main subsystems are allocated as the share of clean energy in the total volume of its generation, the average share of domestic equipment and components in the composition of power plants for alternative energy, the average level of depreciation of power plants to alternative energy, the average time to receive a construction permission for installations of renewable energy sources and connection to the central power grid. The article analyzed and systematized to-date mechanisms to stimulate the development of alternative energy in municipalities and regional governments in foreign countries. General constraints in the development of alternative power generation are revealed. The differentiation of regions of Russia according to the share of "green" power generation in its total production is made. Practices for effective implementation of infrastructure projects of "green" energy in municipalities of the Russian Federation are described and incentives for alternative energy development at the local level are defined. On the basis of generalization of experience of infrastructure projects in the field of alternative energy in cities and regions of Russia the most significant "barriers" in the development of renewable energy infrastructure at the local level are selected and classified , which include economic, administrative, institutional, technological and climatic ones. Several recommendations for the development of incentives to overcome constraints are formulated.

Life Cycle Assessment on Environmental Impact of Wind Power Turbines

2013 ◽  
Vol 448-453 ◽  
pp. 1897-1903
Author(s):  
Jia Hua Dong ◽  
Wei Guang Zhu ◽  
Cheng Kang Gao
Keyword(s):  
Power Generation ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Energy Consumption ◽  
Environmental Impact ◽  
Wind Power ◽  
Power Plants ◽  
Raw Materials ◽  
Renewable Energy Sources ◽  
Wind Power Generation

Wind power is an important type of renewable energy sources. In this passage we will apply Life Cycle Assessment (LCA) to analyze the four stages of wind power generation,which are production of raw materials, transportation, build-operate process of wind plants and demolition stages, calculate the energy consumption and the environmental impact, set a contrastive analysis between coal-fired power plants and wind power plants. We will take WangHaiSi Wind Plant in Faku, Shenyang as an example to show the difference between the two ways of getting power. The analysis shows that: in comparison with coal-fired generation, wind power generation saves more energy and reduces emissions of pollutants markedly; the main energy consumption comes from production of raw materials, which takes 79.3% of the total energy consumption throughout the life cycle. In the meantime, the large amount of ecological resources consumption from construction, operation and maintenance of wind plants leads to mass emission of carbon dioxide and sulfur dioxide, which respectively take 67.3% and 96.6% of total emissions. Besides, wind generation only accounts for 0.93%, 0.89% and 2.72% of energy consumption, global warming potential (GWP) and acid potential (AP) of coal-fired power generation. Thus, it proved that wind power generation has lesser impacts on environment than coal-fired power generation. However, it is still of great necessity to strengthen the environmental protection measures to reduce the consumption and destroy of ecologic resources.

scholarly journals Key Performance Indicators for an Energy Community Based on Sustainable Technologies

2021 ◽  
Vol 13 (16) ◽  
pp. 8789
Author(s):  
Giovanni Bianco ◽  
Barbara Bonvini ◽  
Stefano Bracco ◽  
Federico Delfino ◽  
Paola Laiolo ◽  
...  
Keyword(s):  
Performance Indicators ◽  
Urban Areas ◽  
High Performance ◽  
Power Plants ◽  
New Technologies ◽  
Storage Systems ◽  
Clean Energy ◽  
Key Performance Indicators ◽  
Energy Performance ◽  
Green Energy

As reported in the “Clean energy for all Europeans package” set by the EU, a sustainable transition from fossil fuels towards cleaner energy is necessary to improve the quality of life of citizens and the livability in cities. The exploitation of renewable sources, the improvement of energy performance in buildings and the need for cutting-edge national energy and climate plans represent important and urgent topics to be faced in order to implement the sustainability concept in urban areas. In addition, the spread of polygeneration microgrids and the recent development of energy communities enable a massive installation of renewable power plants, high-performance small-size cogeneration units, and electrical storage systems; moreover, properly designed local energy production systems make it possible to optimize the exploitation of green energy sources and reduce both energy supply costs and emissions. In the present paper, a set of key performance indicators is introduced in order to evaluate and compare different energy communities both from a technical and environmental point of view. The proposed methodology was used in order to assess and compare two sites characterized by the presence of sustainable energy infrastructures: the Savona Campus of the University of Genoa in Italy, where a polygeneration microgrid has been in operation since 2014 and new technologies will be installed in the near future, and the SPEED2030 District, an urban area near the Campus where renewable energy power plants (solar and wind), cogeneration units fed by hydrogen and storage systems are planned to be installed.

scholarly journals Life Cycle Energy Consumption and Carbon Dioxide Emissions of Agricultural Residue Feedstock for Bioenergy

2021 ◽  
Vol 11 (5) ◽  
pp. 2009
Author(s):  
Valerii Havrysh ◽  
Antonina Kalinichenko ◽  
Anna Brzozowska ◽  
Jan Stebila
Keyword(s):  
Carbon Dioxide ◽  
Power Generation ◽  
Life Cycle ◽  
Carbon Dioxide Emissions ◽  
Crop Production ◽  
Agricultural Residues ◽  
Environmental Indicators ◽  
Low Carbon ◽  
Low Carbon Economy ◽  
Energy Inputs

The depletion of fossil fuels and climate change concerns are drivers for the development and expansion of bioenergy. Promoting biomass is vital to move civilization toward a low-carbon economy. To meet European Union targets, it is required to increase the use of agricultural residues (including straw) for power generation. Using agricultural residues without accounting for their energy consumed and carbon dioxide emissions distorts the energy and environmental balance, and their analysis is the purpose of this study. In this paper, a life cycle analysis method is applied. The allocation of carbon dioxide emissions and energy inputs in the crop production by allocating between a product (grain) and a byproduct (straw) is modeled. Selected crop yield and the residue-to-crop ratio impact on the above indicators are investigated. We reveal that straw formation can consume between 30% and 70% of the total energy inputs and, therefore, emits relative carbon dioxide emissions. For cereal crops, this energy can be up to 40% of the lower heating value of straw. Energy and environmental indicators of a straw return-to-field technology and straw power generation systems are examined.

Life Cycle Assessment of Urban Wastewater Treatment

2014 ◽  
Vol 535 ◽  
pp. 346-349
Author(s):  
Mei Wang ◽  
Ming Yang ◽  
Jun Liu ◽  
Jian Fen Li
Keyword(s):  
Wastewater Treatment ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Wastewater Treatment Plant ◽  
Sewage Treatment ◽  
Treatment Plant ◽  
Urban Wastewater ◽  
Urban Sewage ◽  
Urban Wastewater Treatment ◽  
Whole Life Cycle

Effect and benefits of a product or service could be analyzed and evaluated by life cycle assessment during the whole life cycle. Urban sewage treatment plants could improve and control urban water pollution escalating, but it also had certain harm to environment. Effect and benefits of urban wastewater treatment plant A and B were analyzed and evaluated, 13 factors were selected, and comprehensive benefits were researched quantificationally using the method of analytic hierarchy process. It found that urban wastewater treatment plant A who applied A/O process had better benefits than urban wastewater treatment plant B who applied BIOLAK process.

Re-imagine Pickering here: a vision for Pickering Nuclear Park

2021 ◽  
Author(s):  
Taylor Alicia Lena Marquis
Keyword(s):  
Power Generation ◽  
Life Cycle ◽  
Ecological Restoration ◽  
Clean Energy ◽  
Industrial Site ◽  
Energy Technology ◽  
The Future ◽  
Clean Energy Technology ◽  
Restoration Practices ◽  
Post Industrial

In 2024, all commercial operations at the Pickering Nuclear Generation Station cease and the station will begin its decommissioning process. Ontario Power Generation is currently looking developing a repurposing strategy for the site throughout the decommissioning process, which is expected to be complete by 2064. This project presents a unique opportunity to re-imagine the future of this site, while setting a precedent for the reuse of nuclear sites and facilities once they have reached the end of their life cycle – an issue that will be more prevalent in the coming years. This project proposes a vision for the site to be transformed into parkland using ecological restoration practices, and establishing a Centre for Clean Energy Technology. Using design as a form of research, the project was informed by background research that included a review of existing literature on post-industrial site redevelopment, precedent studies, and site reconnaissance.

scholarly journals French Energy Sector in Search for Optimal Model

2019 ◽  
Vol 12 (5) ◽  
pp. 156-171
Author(s):  
A. V. Zimakov
Keyword(s):  
Power Generation ◽  
Nuclear Power ◽  
Nuclear Reactors ◽  
Current Model ◽  
Energy Transition ◽  
Clean Energy ◽  
Green Energy ◽  
Electricity Production ◽  
Low Carbon ◽  
The Eu

Clean energy transition is one of major transformation processes in the EU. There are different approaches among EU countries to decarbonization of their energy systems. The article deals with clean energy transition in France with the emphasis on power generation. While this transformation process is in line with similar developments in the EU, the Franch case has its distinct nature due to nuclear power domination in electricity production there. It represents a challenge for the current model as the transition is linked to a sharp drop of nuclear share in the power mix. It is important to understand the trajectory of further clean energy transition in France and its ultimate model. The article reviews the historical roots of the current model (which stems from Messmer plan of the 1970-es) and its development over years, as well as assesses its drawbacks and merits in order to outline possible future prospects. The conclusion is that the desired reduction of nuclear energy is linked not solely to greening process but has a complex of reasons, the ageing of nuclear reactors being one of them. Nuclear power remains an important low-carbon technology allowing France to achieve carbon neutrality by 2050. A desired future energy model in France can be understood based on the analysis of new legislation and government action plans. The targeted model is expected to balance of nuclear and green energy in the generation mix in 50% to 40% proportion by 2035, with the rest left to gas power generation. Being pragmatic, French government aims at partial nuclear reactors shut down provided that this will not lead to the rise of GHG emissions, energy market distortions, or electricity price hikes. The balanced French model is believed to be a softer and socially comfortable option of low-carbon model.

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