Optimal approaches to manage power system decarbonation

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1447-1452
Author(s):  
Vincent Mazauric ◽  
Ariane Millot ◽  
Claude Le Pape-Gardeux ◽  
Nadia Maïzi
Keyword(s):  
Free Energy ◽  
Linear Programming ◽  
Phase Transitions ◽  
Power System ◽  
Energy System ◽  
Energy Sources ◽  
Low Carbon ◽  
Faraday’S Law ◽  
Optimal Description ◽  
Low Carbon Technologies

To overcome the negative environemental impact of the actual power system, an optimal description of quasi-static electromagnetics relying on a reversible interpretation of the Faraday’s law is given. Due to the overabundance of carbon-free energy sources, this description makes it possible to consider an evolution towards an energy system favoring low-carbon technologies. The management for changing is then explored through a simplified linear-programming problem and an analogy with phase transitions in physics is drawn.

scholarly journals District Heating and Cooling Systems

2021 ◽  
Author(s):  
Iván De la Cruz ◽  
Carlos E. Ugalde-Loo
Keyword(s):  
Renewable Energy Sources ◽  
District Heating ◽  
Energy System ◽  
Optimal Operation ◽  
Low Carbon ◽  
Automatic Control Systems ◽  
Heating And Cooling ◽  
Net Zero ◽  
Cold Store ◽  
Low Carbon Technologies

Decarbonisation of the energy sector is a crucial ambition towards meeting net-zero targets and achieving climate change mitigation. Heating and cooling accounts for over a third of UK greenhouse emissions and, thus, decarbonisation of this sector has attracted significant attention from a range of stakeholders, including energy system operators, manufacturers, research institutions and policy makers. Particularly, the role of district heating and cooling (DHC) systems will be critical, as these two energy vectors are central to our lives not only for comfort and daily activities, but also to facilitate productive workplaces and to run a variety of industrial processes. The optimal operation of DHC systems and the design of efficient strategies to produce heat and cold, store thermal energy, and meet heating and cooling demands, together with an increased integration of low carbon technologies and local renewable energy sources, are vital to reduce energy consumption and carbon emissions alike. This chapter reviews relevant aspects of DHC systems, their main elements, automatic control systems and optimal management.

scholarly journals Optimal Energy Portfolios in the Electricity Sector: Trade-Offs and Interplay Between Different Flexibility Options

2021 ◽  
pp. 177-198
Author(s):  
Steffi Schreiber ◽  
Christoph Zöphel ◽  
Dominik Möst
Keyword(s):  
Renewable Energy Sources ◽  
Energy System ◽  
Electricity Sector ◽  
Low Carbon ◽  
System Transformation ◽  
Need For Power ◽  
Trade Offs ◽  
Optimal Mix ◽  
Low Carbon Technologies ◽  
Flexibility Options

AbstractThe expansion of renewable energy sources (RES) and the electrification of demand side sectors raise the need for power system flexibility. The following model-based analysis illustrates the complexity of the European energy system transformation with pathways regarding the RES expansion, sector coupling, and different levels of flexibility provision. Differences occur concerning the optimal mix of flexibility options between the moderate and ambitious climate target scenarios. Dispatchable back-up capacities are necessary, also in presence of high RES shares. Here, CO2 prices influence the role of low-carbon technologies. Due to cross-sectoral interactions, energy storages have a limited value. For the ambitious scenarios, the emission reductions come close to the Green Deal targets of the European Commission, while levelized costs of electricity increase moderately compared to the less ambitious scenario.

Energy system impacts of the Norwegian-Swedish TGC market

2016 ◽  
Vol 10 (1) ◽  
pp. 69-86 ◽  
Author(s):  
Åsa Grytli Tveten ◽  
Torjus Folsland Bolkesjø
Keyword(s):  
The Netherlands ◽  
Power System ◽  
Ghg Emissions ◽  
Energy System ◽  
Carbon Price ◽  
Nordic Countries ◽  
Low Carbon ◽  
Ghg Emission ◽  
Content Type ◽  
Northern European

Purpose – The purpose of this study is to analyze the power market and greenhouse gas (GHG) emission effects of the joint Norwegian–Swedish tradable green certificates (TGCs) market, which is established to support investments according to a 26.4 TWh increased annual renewable electricity generation (REG) by 2020. Design/methodology/approach – The study applies an energy system model with high granularity in time and space, and detailed power system data for the Nordic countries, Germany, The Netherlands and UK. Findings – The results show that the TGC scheme will cause a 8.7-9.3 /MWh reduction in average electricity prices in the Nordic countries. The price decrease will to a limited extent pass through to Germany, The Netherlands and UK. When assuming a low carbon price level, the new REG will reduce annual GHG emissions by 10.9 Mtonnes in 2020, primarily through substitution of German natural gas power. A sensitivity analysis shows that the GHG emission effect of the TGCs is highly sensitive to changes in the carbon price. Investment levels up to a 90 TWh increased REG per year are found to cause increasing GHG emission reductions. Originality/value – The study results signal the importance of taking the TGC policy into account in decision-making processes in the Northern European power system, in particular for market actors in the Nordic area. The authors conclude that the Nordic countries potentially can play a vital role in a future Northern European low carbon power system through export of green balancing power, substitution of thermal power and reduced GHG emissions from the Northern European power sector.

How Do LCD Innovations Differ?

2016 ◽  
pp. 244-275
Author(s):  
Rainer Walz
Keyword(s):  
Innovation System ◽  
Energy System ◽  
Inclusive Development ◽  
Low Carbon ◽  
Market Failures ◽  
Energy Innovation ◽  
Low Carbon Development ◽  
Low Carbon Technologies ◽  
Lock In ◽  
The Empirical Analysis

Low Carbon Development (LCD) implies to reduce carbon emissions into the atmosphere and to foster inclusive development. This requires systemic innovations, which can lead to disruptive changes, and the build-up of capabilities to enhance the innovations. LCD offers opportunities to reduce energy costs and to export low-carbon solutions. Various specificities constitute a lock-in into the existing fossil fuel based energy system: technological specificities of grid based infrastructure systems, dependence on regulation to overcome market failures, and the political economy of the energy innovation system. There are also systemic reasons why decisions routines for energy related decisions adapt very slowly to new challenges. The empirical analysis indicates that there is considerable heterogeneity among the countries with regard to their starting positions to overcome the various obstacles and to build the comparative advantages which will enable them to supply the global markets with low carbon technologies.

Assessing the potential of low-carbon technologies in the German energy system

2020 ◽  
Vol 262 ◽  
pp. 110345
Author(s):  
Subhash Kumar ◽  
Maximilian Loosen ◽  
Reinhard Madlener
Keyword(s):  
Energy System ◽  
Low Carbon ◽  
Low Carbon Technologies

Advanced Low-Carbon Technologies for Steel Manufacturing Process

2010 ◽  
Vol 44-47 ◽  
pp. 8-12
Author(s):  
Wen Qiang Sun ◽  
Jiu Ju Cai ◽  
Da Wei Zhang ◽  
Duo Jiao Guan
Keyword(s):  
Manufacturing Process ◽  
Energy System ◽  
Point Of View ◽  
Innovative Technology ◽  
Low Carbon ◽  
Steel Manufacturing ◽  
Carbon Recycling ◽  
Systematic Point ◽  
Carbon Dioxide Co2 ◽  
Low Carbon Technologies

A general review was made on research of advanced reducing carbon dioxide (CO2) emissions’ technologies for steel manufacturing process in this paper. Various technologies – ultra low CO2 steelmaking (ULCOS), CO2 ultimate reduction in steelmaking process by innovative technology for cool earth 50 (COURSE50), solar iron-making, CO2 mineral sequestration by slag and active carbon recycling energy system (ACRES), etc. – have been represented respectively. Finally the establishing of an energy flow network from the systematic point of view was recommended.

scholarly journals Development of expert assessment methods in planning energy supply of buildings with renewable energy sources

2021 ◽  
Vol 2 (2(58)) ◽  
pp. 51-54
Author(s):  
Olha Boiko ◽  
Vira Shendryk ◽  
Yuliia Parfenenko ◽  
Petr Pavlenko ◽  
Yevhenii Kholiavka
Keyword(s):  
Decision Making ◽  
Information System ◽  
Renewable Energy ◽  
Power System ◽  
Energy Supply ◽  
System Analysis ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Expert Evaluation

The object of research is the process of expert evaluation in planning the energy supply of buildings using renewable energy sources. The conducted research is based on the application of system analysis methods to formalize the process of expert evaluation in the planning of an energy system with renewable energy sources. Here were used methods of expert evaluation of characteristics of qualitative criteria, methods of the theory of fuzzy sets and fuzzy logic for the formation of the value of criteria, and methods of estimating the reliability of the expert evaluation. Methods of structural analysis and functional modelling of information systems are used to build structural and functional models of the expert evaluation process. The issue of creating an appropriate information system for planning a power system with renewable energy sources is considered. One of the components of the information system is the unit for evaluating candidate experts. A six-level algorithm of the hierarchical structure of expert selection is proposed. As a result of the algorithm, an expert group is formed. This paper shows the process of narrowing the circle of experts from twenty to three candidates. The list of criteria influencing the choice of experts is formed: length of service, availability of the certificate, the efficiency of decision-making, education. The process of assessing the stability of experts' opinions is shown. It is proposed to use the method of processing the opinions of experts to find the value of the membership functions of qualitative criteria. As a result of the study, a group of three experts was formed, whose opinions are taken into account when choosing alternatives to the energy system. In accordance with the proposed information technology of energy supply planning of buildings using renewable energy sources, an information system in the form of a web-oriented application is proposed. A separate part of the information system is a subsystem for working with experts. The diagram of sequence of actions of the expert and the interface of work with system is developed. The use of the information system allowed to increase the efficiency of questionnaires of experts and decision-making on the choice of the optimal structure of the power system as a whole.

scholarly journals Renewable Energies as a Substitute for Fossil Fuel Resources in Poland

2021 ◽  
Author(s):  
Aleksander Wasiuta
Keyword(s):  
Renewable Energy ◽  
Fossil Fuel ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sector ◽  
Electricity Production ◽  
Energy Sources ◽  
Low Carbon ◽  
Transmission Grid ◽  
The Impact

Abstract BackgroundThe characteristic feature of modern energy sector in the EU is the development of environmentally friendly technologies based on renewable energy sources (RES). The use of alternative and RES contributes to resolving not only energy efficiency issues, but many of the environmental, economic and social problems. RES are also one of the priorities of the world's low carbon policy and reducing CO2 emissions into the atmosphere. Growing electrical energy consumption and increasing integration of RES in power systems have led to new challenges, thus it is required to investigate and properly analyze the impact of integrated RES on the power system as a substitute for fossil fuel resources.ResultsThe aim of the article is to show the possibilities of developing RES in Poland in the context of environmental protection, energy self-sufficiency and international obligations. The depletion of primary energy sources and the increase in emissions of greenhouse gases to the atmosphere forces undertaking certain activities, aimed at seeking substitutes for fossil fuels. According to the author’s analysis, RES are the best and safest substitutes for traditional energy resources such as fossil fuel.ConclusionsThe author examines electricity production mix in EU counties and compares it to Polish energy sector. Taking into consideration the transmission network density in Poland, while energy sector changes its structure and expands, the mix of technologies deployed to produce electricity determines the associated burden on transmission networks. Polish energy sector development in the context of modernization of transmission grid provides an opportunity for investors to prepare the energy system for increasing the share of renewable energy sources. In the process of implementing the appropriate solution, the experiences of other countries that have significantly increased the share of renewable energy in the past could be used. This article presents the main areas of action that may facilitate the further integration of different energy sources in the specific context of Poland's changing energy system. Not all integration options will be important for Poland at the same time.

scholarly journals Supporting Europe’s Energy Policy Towards a Decarbonised Energy System: A Comparative Assessment

2019 ◽  
Vol 11 (15) ◽  
pp. 4010 ◽  
Author(s):  
Aikaterini Papapostolou ◽  
Charikleia Karakosta ◽  
Kalliopi-Anastasia Kourti ◽  
Haris Doukas ◽  
John Psarras
Keyword(s):  
Energy System ◽  
Comparative Assessment ◽  
Added Value ◽  
Preference Ranking ◽  
Low Carbon ◽  
The European Union ◽  
System A ◽  
Promethee Method ◽  
Sustainable Energy System ◽  
Low Carbon Technologies

The European Union (EU) aims to prepare its strategy and infrastructure for further decarbonisation of its energy system in the longer term towards 2050. Recent political discussions and research interest focus on ways to accelerate the development and deployment of low-carbon technologies with respect to the targets set for 2030 and 2050. However, the diverse options available that are to be implemented, are policy sensitive and need careful comparative assessment. This paper presents a multi-criteria approach based on an extension of the Preference Ranking Organization METHod for Enrichment of Evaluations (PROMETHEE) method for group decision-making that incorporates fuzzy set theory in order to evaluate alternative transformation pathways for achieving a sustainable energy system in EU. This assessment aims at providing a direction towards a most preferable pathway concept that should be taken into account by a future model-based analysis of the necessary transformation of our energy sector. The results obtained could support policymakers in drawing effective recommendations based on the findings. The added value of this analysis to policymakers is its contribution to plan climate and energy strategies towards a low-carbon transition pathway by using the information of this approach and prioritizing uncertainties through an environmental and energy perspective.

scholarly journals Renewable Energy Sources in the Baltic States and New Business Approach of the Sector

2021 ◽  
pp. 120-127
Author(s):  
Karina Viskuba ◽  
Veronica Silinevicha
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Complex Analysis ◽  
Renewable Energy Sources ◽  
Electric Power Industry ◽  
Energy System ◽  
Energy Sources ◽  
System Operation ◽  
Baltic Countries ◽  
The Baltic

Renewable energy sources (RES) are efficient in meeting the demand for clean and affordable energy. The need for RES is undeniable and has many advantages but there are also some challenges that need to be taken into consideration and adapted to the energy system. One of the challenges is RES volatility and its impact on electricity prices and power system operation. Europe is trending to power system decentralisation through the involvement of local authorities, active consumers and citizens in the system operation. This article provides main information about the energy sector of Latvia and RES in the Baltic countries. It proposes a methodology for the complex analysis of correlation and regression dependences of natural and price indicators of the electric power industry, based on the adaptation of the corresponding classical mathematical models.

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