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Dissertations / Theses on the topic 'Variable renewable energy (VRE)'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2025

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1

Ogden, Lillie. "Exploring Opportunities for Novel Electricity Trading Strategies within a Virtual Power Plant in the European Power Market : New Possibilities in Power Trading Due to the Increased Share of Variable Renewable Energy." Thesis, KTH, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277841.

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This report explores the impacts of variable renewable energy (VRE) on power trading in the European wholesale electricity market. The intricate operation of a typical power exchange in Europe is accompanied by an equally complex balancing system. The increasing amount of VRE in the power system, such as wind and solar power, has far-reaching impacts for power traders in both this electricity market and the corresponding balancing system. As a result, the electricity market is evolving in unprecedented ways and new participants are entering the playing field to capitalize on the changing dynam

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2

Kadkhodaei, Maryam. "Sensitivity of Energy Systems with Large Shares of Variable Renewable Energies to Climate Data Uncertainty and Climate Change." Electronic Thesis or Diss., Paris, EHESS, 2024. http://www.theses.fr/2024EHES0122.

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Décarboniser le système énergétique en augmentant l'utilisation des sources d'énergies renouvelables variables (ERV) est essentiel pour réduire les impacts du changement climatique et maintenir le réchauffement climatique en dessous de 2 °C. Les modèles de systèmes énergétiques sont utilisés pour planifier les futurs mélanges énergétiques et évaluer différentes options. À mesure que les sources d'ERV deviennent plus dominantes, ces modèles deviennent plus sensibles aux conditions météorologiques. Cela signifie qu'il est crucial de gérer les incertitudes liées à des facteurs tels que la modélis

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Mendes, Barlach Leonardo. "Dynamic modelling of variable renewable energy generation sources." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112066.

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Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, School of Engineering, System Design and Management Program, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (page 56).<br>Renewable energy is one of the most important technologies for decarbonizing the economy and fighting climate change. In recent years, wind energy has become cheaper and more widely adopted. However, the variable nature of wind production creates unique challenges that are not faced by conventional thermal technologies. Several studies to date have showe

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4

Thomson, Rachel Camilla. "Carbon and energy payback of variable renewable generation." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/8875.

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The continued drive to reduce Greenhouse Gas (GHG) emissions in order to mitigate climate change has led to an increase in demand for low-carbon energy sources, and the development of new technologies to harness the available energy in the wind, waves and tides. Many controversies surround these technologies, however, particularly with regards to their economic cost, environmental impacts and the implications of the variability of their output for security of the electricity supply. In order to make informed policy decisions on future developments of the electricity system, it is necessary to

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Stott, Paul Anthony. "Renewable variable speed hybrid system." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4781.

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At present many remote and Island communities rely solely on diesel powered generators to provide electricity. Diesel fuel is both expensive and polluting and the constant speed operation of the diesel engine is inefficient. In this thesis the use of renewable energy sources to help offset diesel fuel usage and an alternative way of running the diesel generator with the aim of reducing electrical energy costs is investigated. Diesel generators have to be sized to meet peak demand, in one or two diesel generator island grids, these generators will be running at a fraction of maximum output for

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6

Low, Robert E. "A variable-capacity heat pump for renewable energy recovery." Thesis, University of Edinburgh, 1991. http://hdl.handle.net/1842/12477.

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This thesis describes research carried out by the author between 1986 and 1990 at the Department of Chemical Engineering, University of Edinburgh, under the supervision of Dr Colin Pritchard. The aim of the research was to devise and evaluate a novel compression heat pump cycle as a potential technology for the utilisation of work and heat from environmental sources in industrial applications. The principal requirement of such a heat pump is that it can accept time-varying inputs of work and heat whilst supplying a controlled heat load at constant delivery temperature to an external load. This

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Hinke, Themba D. "Hot thermal storage in a variable power, renewable energy system." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/42645.

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Approved for public release; distribution is unlimited<br>This thesis outlines the design of a renewable energy heat generation system with thermal storage for DOD facilities. The DOD is seeking to implement an increased percentage of renewable energy systems at its facilities in order to improve energy security and reduce energy costs. The intermittent nature of renewable energy generation, however, presents a major challenge to full implementation. This shortfall can be overcome by targeted facility-scale energy storage that allows for increased use of renewable-only systems. Since a large p

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8

Zhang, Wang. "Optimisation and Integration of Variable Renewable Energy Sources in Electricity Networks." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/16858.

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The growing penetration of renewable energy sources (RESs) into the electricity power grid is profitable from a sustainable point of view and provides economic benefit for long-term operation. Nevertheless, balancing production and consumption is and will always be a crucial requirement for power system operation. However, the trend towards increasing RESs penetration has raised concerns about the stability, reliability and security of future electricity grids. The clearest observation in this regard is the intermittent nature of RESs. Moreover, the location of renewable generation tends to b

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9

Macbeth, John Noel. "A thermal charge system for variable electrical supplies from renewable sources." Thesis, University of Aberdeen, 2013. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=202380.

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In a time of a fast growing renewable electricity generation sector, there are challenges regarding the integration of such generation with current transmission infrastructure. Such challenges include problems associated with the intermittent power output of renewable energy sources and the inability to control there output to meet varying electrical demand. Using part of this available energy for the provision of domestic heating loads may help bridge the gap between supply and demand. The use of intermittent electrical energy sources for charging water based thermal energy stores was identif

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10

Susanto, Julius. "Stability of microgrids and weak grids with high penetration of variable renewable energy." Thesis, Susanto, Julius (2020) Stability of microgrids and weak grids with high penetration of variable renewable energy. PhD thesis, Murdoch University, 2020. https://researchrepository.murdoch.edu.au/id/eprint/54354/.

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Autonomous microgrids and weak grids with high penetrations of variable renewable energy (VRE) generation tend to share several common characteristics: i) low synchronous inertia, ii) sensitivity to active power imbalances, and iii) low system strength (as defined by the nodal short circuit ratio). As a result of these characteristics, there is a greater risk of system instability relative to larger grids, especially as the share of VRE is increased. This thesis focuses on the development of techniques and strategies to assess and improve the stability of microgrids and weak grids. In the

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11

Bruce, Robert Alasdair Wilson. "Impacts of variable renewable generation on thermal power plant operating regimes." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/20387.

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The integration of variable renewable energy sources (VRE) is likely to cause fundamental and structural changes to the operation of future power systems. In the United Kingdom (UK), large amounts of price-insensitive and variable-output wind generation is expected to be deployed to contribute towards renewable energy and carbon dioxide (CO2) emission targets. Wind generation, with near-zero marginal costs, limited predictability, and a limited ability to provide upward dispatch, displaces price-setting thermal power plants, with higher marginal costs, changing flexibility and reserve requirem

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RADU, David-Constantin. "Strategies for Provision of Secondary Reserve Capacity to Balance Short-Term Fluctuations of Variable Renewable Energy." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-216983.

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Villavicencio, Manuel. "Analyzing the optimal development of electricity storage in electricity markets with high variable renewable energy shares." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLED044/document.

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L’essor des technologies renouvelable à apport variable pose des nombreuses difficultés dans le fonctionnement du système électrique. Ce système doit garantir l’équilibre offre-demande à tout moment, ainsi que d’assurer des hauts niveaux de fiabilité du service. Donc, la variabilité accroît les besoins de flexibilité et des services système. Ils existent plusieurs options capables de fournir ceux services, dont : le renforcement des interconnections, le pilotage intelligent de la demande, le renforcement des capacités de réponse rapide des unités de production, mais aussi, le mis en œuvre des

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14

Bradley, Mark Hewitt. "The potential application of variable renewable energy supplies to increase the horticultural productivity of the Isle of Lewis, Scotland." Thesis, University of the Highlands and Islands, 2014. https://pure.uhi.ac.uk/portal/en/studentthesis/the-potential-application-of-variable-renewable-energy-supplies-to-increase-the-horticultural-productivity-of-the-isle-of-lewis-scotland(1615ba75-29e3-4ce4-a7a4-9c64bc247617).html.

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Key factors in using variable renewable energy to sustain crop growth were investigated using the Isle of Lewis as a case study. Methods investigated sought to exploit plants' abilities to accommodate a variable solar input by supplementing it with variable renewable energy. The extant solar resource on Lewis was characterised. The mean ratio of photosynthetically active radiation (PAR) to solar radiation (SR) (fE) recorded in 2010 was 0.458. fE was found to be significantly different between the first and last hour of daylight and 12:00 GMT (F, (2, 33) = 7.98, p<0.001) and between winter and

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15

Zhu, Dinghuan. "Multi - Timescale Control of Energy Storage Enabling the Integration of Variable Generation." Research Showcase @ CMU, 2014. http://repository.cmu.edu/dissertations/332.

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A two-level optimal coordination control approach for energy storage and conventional generation consisting of advanced frequency control and stochastic optimal dispatch is proposed to deal with the real power balancing control problem introduced by variable renewable energy sources (RESs) in power systems. In the proposed approach, the power and energy constraints on energy storage are taken into account in addition to the traditional power system operational constraints such as generator output limits and power network constraints. The advanced frequency control level which is based on the r

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16

Walcher, Friedrich [Verfasser]. "Overcoming the Challenges of Variable Renewable Energy : On Mitigating Risks, Enhancing Value, and Providing Flexibility / Friedrich Walcher." Berlin : epubli, 2019. http://d-nb.info/1195290292/34.

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17

Dhununjoy, Rakesh Kumar. "Meeting the Challenges for Increasing the Share of Variable Renewable Energy in the Generation Mix of Mauritius." Thesis, KTH, Kraft- och värmeteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-150579.

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As a Small Island Developing State (SIDS), Mauritius is exceptionally vulnerable. It faces similar threats to its survival as other SIDS, which include, inter alia, a strong reliance on a depleting natural resource base, loss of biodiversity and degradation of essential components of the ecosystem, and a heavy dependency on fossil fuels and other imported commodities that support society. Climate change, long distances that separating Mauritius from Africa and Asia, coupled with rising fuel costs exacerbates the situation considerably. Unless substantial and effective interventions are put in

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18

Saers, Pauline. "Future Impacts of Variable Renewable Power Production : An analysis of future scenarios effects on electricity supply and demand." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-256790.

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Many scenarios try to describe a future of supply and demand for electricity in Sweden. All the studied scenarios contain an increased amount of variable renewable energy (VRE) power production. VRE power sources, such as solar and wind power, depend on weather conditions, like solar irradiance and wind speed. There are also scenarios predicting an increased amount of plug-in electrical vehicles (PEVs), which charge their batteries from the electricity grid and thereby changes the consumption patterns. In a future power system with less nuclear power and increased VRE power production it is of

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19

Krehnovi, Emily M. "Resonate Energy Conversion: Analysis of a Lunar Tide Power Plant Using a Variable Area Pipe." University of Dayton / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1366991503.

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20

Lohmann, Per, and Zami Sarker. "New Business Model for District Heating Firms Stabilizing the National Energy System with a Future Variable Electricity Production." Thesis, KTH, Energiteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-134869.

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The aim of this thesis is to develop a new business model for district heating and cooling firms which can contribute to a stabilization of the Swedish national energy system. The business model is developed for a district heating and cooling firm and is exemplified with Fortum Heat. The theoretical investigation around the topic creates a rigid base for following qualitative empirical studies. Osterwalder’s canvas for business model generation is used together with a Casual Loop Diagram to identify a number of business opportunities which stabilizes the national energy system. One of the busi

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21

DE, LEON RAFAEL. "Modeling the impact of variable renewable energy sources penetration on supply-demand balance : Analysis of France from 2021 to 2025." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-294583.

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France is planning a strong development of solar photovoltaics (PV) and wind power in the medium term disrupting the power system. This Master Thesis analyzes the impacts of variable renewable energy production on the supply-demand balance from 2021 to 2025 in France. The model used relies on a dynamic programming method. The analysis is based on the assessment of indicators such as price signals, margins, loss of load duration (LOLD), expected energy not served (EENS) and nuclear drop stop that characterize the supply-demand balance and the security of supply of the electricity system. Wind p

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22

Sommerfeld, Jeffrey. "Residential customers and adoption of solar PV." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/98508/4/Jeffrey_Sommerfeld_Thesis.pdf.

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Policies encouraging consumer use of solar photovoltaic (PV) are promoted to reduce the impacts of climate change. To maximise benefits, the role of the consumer is critical as their adoption and use of renewable energy technology may, or may not, align with policy objectives of the energy professionals. The contribution of this research is it provides a better understanding of consumer interaction with solar PV technology. From this understanding, policy options can be developed and/or adapted to address technical and/or human-related issues that impact on the effectiveness of solar PV policy

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23

Skjølberg, Karen. "Power System Impacts of variable renewable Energy Sources towards 2050 : With special emphasis on wind and solar utilisation and grid costs." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-24692.

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The European Union(EU) has set an ambitious goal of reducing the Green House Gas(GHG) emissions with at least 80-95% in 2050 compared to 1990 levels. Due to the difficulties of avoiding all emissions in other sectors such as transport and agriculture the power sector should be close to 100% renewable. For the European energy system this means that the fossil fuel power has to be strongly reduced and that a vast amount of wind and solar power would have to be installed towards 2050. Due to the long life times of fossil fuel powered plants, 2050 is only one investment cycle away. It is therefore

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Sterchele, Philip [Verfasser]. "Analysis of Technology Options to Balance Power Generation from Variable Renewable Energy : Case Study for the German Energy System with the Sector Coupling Model REMod / Philip Sterchele." Düren : Shaker, 2019. http://d-nb.info/1198601051/34.

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Fichter, Tobias [Verfasser], and André [Akademischer Betreuer] Thess. "Long-term capacity expansion planning with variable renewable energies : enhancement of the REMix energy system modelling framework / Tobias Fichter ; Betreuer: André Thess." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2017. http://d-nb.info/1147381518/34.

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26

Mohammadpour, Violet, and Oskar Hane. "Toward an energy self-sufficient paint shop." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-49356.

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As manufacturing is creating welfare and prosperity, it is important for humankind. Nevertheless, manufacturing is causing the depletion of natural resources, environmental burdens affecting the health of animals, humans and eco-systems, and social conflicts. Thus, it is essential to implement sustainability into manufacturing. Paint shops are however known for being liable for a big part of the large energy consumptions within manufacturing. Therefore, it is necessary to investigate what cost-effective solutions can be implemented in paint shops in order to reduce the energy consumption in a

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27

Scharff, Richard. "Design of Electricity Markets for Efficient Balancing of Wind Power Generation." Doctoral thesis, KTH, Elektriska energisystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171063.

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Deploying wind power to a larger extent is one solution to reduce negative environmental impacts of electric power supply. However, various challenges are connected with increasing wind power penetration levels. From the perspective of transmission system operators, this includes balancing of varying as well as - to some extent - uncertain generation levels. From the perspective of power generating companies, changes in the generation mix will affect the market's merit order and, hence, their profits. This thesis focuses on provision and use of flexibility in the Nordic electricity market. Fir

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Batalla, Bejerano Joan. "Power system integration of renewables: an economic approach." Doctoral thesis, Universitat Rovira i Virgili, 2016. http://hdl.handle.net/10803/441739.

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A nivell mundial les energies renovables han crescut de forma considerable al llarg d'aquestes dues últimes dècades, havent substituït parcialment als combustibles fòssils en àmbits tals com la generació elèctrica. Una aposta tan àmplia per aquest tipus d'energies només s'explica des del punt de vista de les importants i creixents avantatges associats a aquest tipus de tecnologies en tres àmbits fonamentals: el medi ambient, la seguretat de subministrament energètic i el desenvolupament econòmic. No únicament contribueixen a la reducció d'emissions de gasos d'efecte hivernacle donat el seu car

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Pietzcker, Robert Carl [Verfasser], Gunnar [Akademischer Betreuer] Luderer, Ottmar [Akademischer Betreuer] Edenhofer, and Christian von [Akademischer Betreuer] Hirschhausen. "Achieving stringent climate targets : an analysis of the role of transport and variable renewable energies using energy economy climate models / Robert Carl Pietzcker. Gutachter: Ottmar Edenhofer ; Christian von Hirschhausen. Betreuer: Gunnar Luderer." Berlin : Technische Universität Berlin, 2015. http://d-nb.info/1069578401/34.

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Schaber, Katrin [Verfasser], Thomas [Akademischer Betreuer] Hamacher, and Reinhard [Akademischer Betreuer] Haas. "Integration of Variable Renewable Energies in the European power system: a model-based analysis of transmission grid extensions and energy sector coupling / Katrin Schaber. Gutachter: Thomas Hamacher ; Reinhard Haas. Betreuer: Thomas Hamacher." München : Universitätsbibliothek der TU München, 2014. http://d-nb.info/1058680781/34.

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31

Petitet, Marie. "Long-term dynamics of investment decisions in electricity markets with variable renewables development and adequacy objectives." Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLED032/document.

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Les marchés électriques libéralisés sont supposés assurer la coordination de long terme des investissements afin de garantir sécurité d’approvisionnement, viabilité et compétitivité. Dans le modèle de référence energy-only, la formation des prix par alignement sur le coût variable de l’équipement marginal sur les marchés horaires successifs fournit un signal prix pour les investisseurs. Cependant, en pratique, ce modèle est remis en question quant à sa capacité à déclencher des investissements dans les technologies bas-carbone et en particulier les énergies renouvelables (EnR) et quant à sa ca

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Daun, Kevin. "Impact of energy storage technologies in a distribution grid : An analysis of Key Performance Indicators relating to a local grid’s performance characteristics." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-55367.

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The energy system is undergoing a transformation on a never before witnessed scale. The changes are driven by global market forces and technological advancements, improving on a seemingly exponential scale. This in turn has led to the price of both renewables and the accompanying technology decrease over time, making the transition into renewables more economically viable. The drawback of variable renewable energy is that it is variable and dependent on the surrounding environment. Therefore, storing the energy during hours of production, to be used at a later stage when energy demand is highe

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33

Gambardella, Christian [Verfasser], Ottmar [Akademischer Betreuer] Edenhofer, Ottmar [Gutachter] Edenhofer, and Felix [Gutachter] Müsgens. "On the economics of real-time pricing in low-carbon electricity markets : efficiency and feasibility in the presence of policy-induced variable renewable energy supply / Christian Gambardella ; Gutachter: Ottmar Edenhofer, Felix Müsgens ; Betreuer: Ottmar Edenhofer." Berlin : Technische Universität Berlin, 2020. http://d-nb.info/1204478554/34.

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Després, Jacques. "Modélisation du développement à long terme du stockage de l’électricité dans le système énergétique global." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT073/document.

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Le développement des énergies renouvelables éolienne et solaire implique de repenser les modèles à long terme du système énergétique. En effet, les impacts à court et long terme des productions intermittentes éolienne et solaire sur le système électrique entraînent un besoin de flexibilité : centrales de production très réactives, gestion de la demande,amélioration du réseau électrique ou stockage d’électricité. Le premier apport majeur à l’état de l’art est l’ajout du stockage d’électricité et du réseau électrique européen dans le modèle POLES (Prospective Outlook on Long-term Energy Systems)

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Elamalayil, Soman Deepak. "Multilevel Power Converters with Smart Control for Wave Energy Conversion." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-332730.

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The main focus of this thesis is on the power electronic converter system challenges associated with the grid integration of variable-renewable-energy (VRE) sources like wave, marine current, tidal, wind, solar etc. Wave energy conversion with grid integration is used as the key reference, considering its high energy potential to support the future clean energy requirements and due the availability of a test facility at Uppsala University. The emphasis is on the DC-link power conditioning and grid coupling of direct driven wave energy converters (DDWECs). The DDWEC reflects the random nature o

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Lee, Jin Woo. "Multi-level Decoupled Optimization of Wind Turbine Structures Using Coefficients of Approximating Functions as Design Variables." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1501003238831086.

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Gaptia, Maï Moussa Lawan. "Gestion optimale d'énergie électrique à partir des sources d'énergies renouvelables dédiées aux sites isolés Power control for decentralized energy production system based on the renewable energies — using battery to compensate the wind/load/PV power fluctuations Three level Neutral-Point-Clamped Inverter Control Strategy using SVPWM for Multi-Source System Applications Wind turbine and Batteries with Variable Speed Diesel Generator for Micro-grid Applications." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMLH28.

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Les travaux de thèse s’inscrivent dans les problématiques des travaux de recherche de l’équipe thématique : Maitrise des Energies Renouvelables et systèmes de Stockage (MERS) du laboratoire GREAH-EA3220. Ils englobent le dimensionnement des éléments constitutifs du système et la gestion optimale de l’énergie électrique pour un système hybride (Diesel à vitesse variable, Eolien, PV et Batteries) dédié aux sites isolés. Les sources de production d'énergie alimentent des charges par le biais de convertisseurs multi-niveaux d’électronique de puissance. Le groupe électrogène comportant un moteur di

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Guo, Qihao. "On control strategies of switched reluctance generator-based DC microgrid." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST002.

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Les microréseaux (MG) à courant continu (DC) sont une solution prometteuse pour l’intégration massive des énergies renouvelables dans la production durable et décentralisée d’énergie électrique pour s’inscrire dans la transition énergétique. En tant que sous-système du micro-réseau, la machine à réluctance variable (MRV) est une solution sans terres rares pour des systèmes de conversion de l’énergie éolienne (SCEE) à petite échelle. Cependant, la commande de la Génératrice à Réluctance Variable (GRV) dans les applications MG est un défi en raison de la forte non-linéarité de son modèle. L’obje

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Kozma, Petr. "Statistické modely trhu obnovitelných energií." Doctoral thesis, Vysoká škola ekonomická v Praze, 2006. http://www.nusl.cz/ntk/nusl-77065.

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An efficient application and development of renewable energy sources is one of the most important contribution to the energetic balance of the human society. Anyhow, statistical model of the renewable energy market, which would fundamentally explain relevant economical rules related to these perspective energetic resources, is not clearly known up to now. Nevertheless, the relevant statistical data concerning application of solar energy (photovoltaic and thermo-solar heating) are available for the last twenty years. Based on the economic models, statistical data concerning sales of photovoltai

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Allard, Stéphane. "Enjeux de flexibilité liés au développement des infrastructures réseaux pour l'intégration massive des énergies renouvelables variables dans le système électrique à l’horizon 2100." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT101/document.

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L'intégration massive des énergies renouvelables variables (EnRV) provoque d'importants changements dans le système électrique. Auparavant développé de manière vertical et centralisé, le système était robuste et fiable. Cependant, la production des EnRV est intermittente et peu prévisible. Ainsi, le système doit être plus flexible grâce à de nouvelles options telles que la maîtrise de la demande, le stockage ou l'effacement de la production EnRV. Cependant, le potentiel des EnRV est réparti inégalement en Europe et avec d'importants taux de pénétration d'EnRV, les échanges d'électricité entre

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Correia, Duarte Lourenço. "Portugal's route to neutrality: the challenge of high shares of variable renewable energy." Master's thesis, 2020. http://hdl.handle.net/10362/104568.

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This project examines the challenge of managing the Portugueseelectric powergrid, whichwill experiencethe installationof large amounts of solar and wind capacity and full coalphasing-out during the next decade.The Irena FlexTool is used tostudy the flexibility of the power grid in 2030 under differentscenarios.Weconcludethatthe variable renewable energy (VRE)expectedinstalled capacity will frequentlyproduceexcessiveenergysupply, leading to high levelsof curtailment. Hence, the power baseload price will decreasebetween 1% and 13%andinvestments opportunities between 30,1M

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Lin, Mao-Hao, and 林楙豪. "Hydraustatic Transmission System for Variable Speed Control of Renewable Energy Generation System." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/ymmmst.

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碩士<br>國立臺灣大學<br>工程科學及海洋工程學研究所<br>105<br>The purpose of this study is to develop a hydrostatic transmission system for variable speed control of renewable energy system applications, such as wind turbine, wave energy system. The hydraulic system is utilized to replace the gearbox system of generators. In order to maintain stable output power of generator, the variable speed control of hydrostatic transmission system is proposed to achieve a stable output speed. This system will be applied to green power generation system to increase the efficiency of the generator in rectification. The de

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Castro, João Saraiva de Carvalho Morais de. "Strategies for the minimization of the balancing costs of a variable renewable energy producer." Master's thesis, 2014. https://repositorio-aberto.up.pt/handle/10216/74604.

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Castro, João Saraiva de Carvalho Morais de. "Strategies for the minimization of the balancing costs of a variable renewable energy producer." Dissertação, 2014. https://repositorio-aberto.up.pt/handle/10216/74604.

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Nikolakakis, Thomas. "A Mixed Integer Linear Unit Commitment and Economic Dispatch Model for Thermo-Electric and Variable Renewable Energy Generators With Compressed Air Energy Storage." Thesis, 2017. https://doi.org/10.7916/D8CN78M1.

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The objective of this PhD thesis is to create a Unit Commitment and Economic Dispatch (UCED) modelling tool that can used to simulate the deterministic performance of a power system with thermal and renewable generators and energy storage technologies. The model was formulated using mixed integer programing (MIP) on GAMS interface. A robust commercial solver by IBM (CPLEX) is used as solver. Emphasis on the development of the tool has been given on the following aspects. a) Technical impacts of Variable Renewable Energy (VRE) integration. The UCED model developed in this thesis is a high

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Cruz, Marco Rafael Meneses. "Stochastic management framework of distribution network systems featuring large-scale variable renewable energy sources and flexibility options." Doctoral thesis, 2019. http://hdl.handle.net/10400.6/7152.

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The concerns surrounding climate change, energy supply security and the growing demand are forcing changes in the way distribution network systems are planned and operated, especially considering the need to accommodate large-scale integration of variable renewable energy sources (vRESs). An increased level of vRESs creates technical challenges in the system, bringing a huge concern for distribution system operators who are given the mandate to keep the integrity and stability of the system, as well as the quality of power delivered to end-users. Hence, existing electric energy systems n

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Behboodi, Kalhori Sahand. "Market-based demand response integration in super-smart grids in the presence of variable renewable generation." Thesis, 2017. http://hdl.handle.net/1828/7982.

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Variable generator output levels from renewable energies is an important technical obstacle to the transition from fossil fuels to renewable resources. Super grids and smart grids are among the most effective solutions to mitigate generation variability. In a super grid, electric utilities within an interconnected system can share generation and reserve units so that they can produce electricity at a lower overall cost. Smart grids, in particular demand response programs, enable flexible loads such as plug-in electric vehicles and HVAC systems to consume electricity preferntially in a grid-

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Tafarte, Philip. "Assessing the potential for immediate technical options for an optimized renewable energy supply – a case study for Germany." 2019. https://ul.qucosa.de/id/qucosa%3A75175.

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Zusammenfassung Um die ehrgeizigen politischen Ziele zur Reduzierung der Treibhausgasemissionen im Stromsektor zu erreichen, stimmen alle relevanten Energieszenarien überein, dass Deutschland kurz- bis mittelfristig bis 2035 seine Kapazitäten zur Erzeugung erneuerbarer Energien massiv ausbauen muss. Deutschland ist dabei wie viele andere Länder auch stark von fluktuierenden erneuerbaren Energiequellen (fEE) abhängig, insbesondere von der Wind- und Solarenergie. Die Spezifika der Stromerzeugung von fEE stellen neue und besondere Herausforderungen an ein zuverlässiges Stromversorgungssystem der

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Joseph, Rex. "Ballast-Free Variable-Speed Generation for Standalone and Grid-Connected Micro-Hydel Power Plants." Thesis, 2014. http://etd.iisc.ac.in/handle/2005/2902.

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Concerns about climate change brought about by the increasing usage of fossil fuels has made it imperative to develop sustainable energy usage based on renewable sources. Micro-hydel plants are an important source of renewable energy that can be exploited to supply requirements of local loads in remote locations while operating as an isolated source, or the larger network when operating in grid connected mode. The focus of this research is to develop an alternative topology to the one currently in use in micro-hydel power plants. While existing plants are based on a ballast-controlled, fixed-s

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Joseph, Rex. "Ballast-Free Variable-Speed Generation for Standalone and Grid-Connected Micro-Hydel Power Plants." Thesis, 2014. http://hdl.handle.net/2005/2902.

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Concerns about climate change brought about by the increasing usage of fossil fuels has made it imperative to develop sustainable energy usage based on renewable sources. Micro-hydel plants are an important source of renewable energy that can be exploited to supply requirements of local loads in remote locations while operating as an isolated source, or the larger network when operating in grid connected mode. The focus of this research is to develop an alternative topology to the one currently in use in micro-hydel power plants. While existing plants are based on a ballast-controlled, fixed-s

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