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Dissertations / Theses on the topic 'Storage of intermittent energies'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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1

Gils, Hans Christian [Verfasser], and André [Akademischer Betreuer] Thess. "Balancing of intermittent renewable power generation by demand response and thermal energy storage / Hans Christian Gils. Betreuer: André Thess." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2016. http://d-nb.info/1081367563/34.

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2

Goemaere, Loïc. "Comparaison de la production de trois technologies différentes de panneaux solaires en fonctionnement réel avec suivi du soleil et intégration de batteries lithium innovantes adaptées au stockage des énergies intermittentes." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20211/document.

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Dans une vision de développement durable et d'indépendance énergétique visant l'intégration massive des énergies renouvelables à moyen terme dans le mix énergétique, les travaux menés au cours de cette thèse se sont axés sur deux thématiques :- d'une part, la comparaison de la production de trois technologies différentes de panneaux solaires (silicium, silicium avec concentration, CdTe) en fonctionnement réel dans une centrale photovoltaïque au sol dotée du suivi deux axes de la course du soleil ;- d'autre part et étant donné la nature intermittente de l'énergie photovoltaïque et son non-synch

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3

Al-imarah, Amena, and Elin Stenberg. "Tillämpning av batterilager som energitjänsten lastutjämnare : En studie om batterilagring för en medelstor abonnent i Varberg Energis elnät." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-33263.

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Arbetet Tillämpning av batterilager som energitjänsten lastutjämnare är en litteraturstudie och en kvantitativ studie. I studien har driftkarakteristiken år 2015 hos en matvarubutik legat till grunden. Arbetet har syftat i att besvara frågan kring ett batterilagers lämplighet som agerade för lastutjämning. För att ta reda på det har batterilagersegenskaper kartlagts och dimensionering gjorts utifrån två olika driftfall. En ekonomisk besparingspotential har även beräknats utifrån de bägge driftfallen. Driftfallen har valts att kallas teknisk dimensionering och ekonomisk dimensionering. De tekni

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4

Clerjon, Arthur. "Analyse et modélisation des impacts du développement des énergies renouvelables intermittentes sur le système électrique Français : Etude du potentiel du stockage de l’électricité, et de la complémentarité avec la chaleur." Thesis, Université Grenoble Alpes, 2021. http://www.theses.fr/2021GRALI022.

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La France affiche une volonté de développer massivement les énergies renouvelables intermittentes – éolien et photovoltaïque - tout en diminuant la part des sources pilotables, ici le nucléaire. Ce changement de paradigme implique de repenser la gestion des systèmes énergétiques. En effet, l’intermittence des renouvelables génère un besoin de flexibilité à différentes échelles de temps, de la journée à l’année. Ne pouvant plus se reposer sur la flexibilité des moyens pilotables, cette thèse questionne le potentiel d’autres moyens pour y répondre : stockage d’électricité, surdimensionnement de

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5

Roobottom, Helen Kay. "Lattice potential energies and theoretical applications." Thesis, University of Warwick, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340053.

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6

Abdelouadoud, Seddik Yassine. "Intégration des énergies renouvelables au réseau de distribution d'électricité." Thesis, Paris, ENMP, 2014. http://www.theses.fr/2014ENMP0071/document.

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Afin de lutter contre le changement climatique et de préserver les ressources naturelles, de nombreux pays ont mis en place des politiques plus ou moins ambitieuses de développement des énergies renouvelables électriques à court et moyen terme, tandis que, en parallèle, des scénarii de prospective à long terme envisagent un approvisionnement électrique majoritairement d'origine renouvelable. Certaines de ces énergies sont intermittentes et non contrôlables et, du fait des faibles économies d'échelle dont elles bénéficient, peuvent être développées de manière décentralisée, intégrées au bâtimen

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7

Berglund, Simon. "Rock cavern as thermal energy storage." Thesis, Luleå tekniska universitet, Energivetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79596.

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In the fall of 2019, a comprehensive idea study was conducted on heat storage in two rock caverns located at Näsudden in Skelleftehamn and was part of the project course "Energiteknik, huvudkurs" at Luleå University of Technology. This idea study investigated the conditions of using waste heat from Boliden AB:s copper smeltery (Rönnskär) and storing this waste heat in two rock caverns and use them as seasonal thermal storage tanks, with the purpose of using the heat in the nearby district heating network, thus replacing some of the oil burned at Rönnskär. To investigate this, the authors of th

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8

Shankland, Neil J. "Development of an intermittent chemical/vapour-compression heat pump, using a sunspace as a heat source." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282643.

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9

Barton, John P. "A probabilistic method of modelling energy storage in electricity systems with intermittent renewable energy." Thesis, Loughborough University, 2007. https://dspace.lboro.ac.uk/2134/9727.

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A novel probabilistic method has been developed for modelling the operation of energy storage in electricity systems with significant amounts of wind and solar powered generation. This method is based on a spectral analysis of the variations of wind speed and solar irradiance together with profiles of electrical demand. The method has been embodied in two Matlab computer programs: Wind power only: This program models wind power on any time scale from seconds to years, with limited modelling of demand profiles. This program is only capable of modelling stand-alone systems, or systems in which t

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Görtz, Steffen. "Battery energy storage for intermittent renewable electricity production : A review and demonstration of energy storage applications permitting higher penetration of renewables." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-104285.

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Driven by resource politics and climate change, the transition from conventional fossil fuel based and centralized energy generation to distributed renewables is increasing rapidly. Wind and solar power generation offer carbon dioxide neutral electricity but also present some integration difficulties for energy system operators and planners due to intermittent power output. A promising way of dealing with the intermittency from renewables is energy storage. The method of storing energy in the electricity grid, especially by the means of electrochemical storage, has gained a lot of attention ov

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11

Torras, Ortiz Santiago. "Numerical simulation of sensible and latent thermal energy storage systems." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/392616.

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El objetivo principal de esta tesis es la resolución numérica de problemas de transferencia de calor y dinámica de fluidos y su aplicación para el estudio del comportamiento transitorio de sistemas térmicos de acumulación de energía (TES). Tres diferentes sistemas han sido considerados, cubriendo un amplio rango de condiciones de trabajo (desde muy baja de temperatura criogenica hasta muy alta temperatura en plantas CSP) y aplicaciones (desde domestica/residencial hasta energía renovables o de la industria aeroespacial). En este sentido, i) sistemas recuperadores de energía térmica para reside

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12

Granado, Pedro Crespo del. "The value of energy storage from intermittent renewables : an end user perspectives in Smart Grids." Thesis, Lancaster University, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.732707.

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The widespread deployment of renewable energy in combination with smart grid technologies is creating the opportunity for energy storage to play a critical role in energy systems and be a more prevalent technology in the near future. This research adopts a bottom-up approach to model the interactions within the energy system, namely between renewable supply and storage technologies at the end-user level (e.g. in houses, buildings and communities). That is, the papers presented in this thesis investigate the value of energy storage in smart grids from an end-user perspective. Specifically, it

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13

Vacs, Renwick Deborah Alexandra. "The effects of an intermittent piped water network and storage practices on household water quality in Tamale, Ghana." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82721.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2013.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 67-69).<br>The United Nations Millennium Development Goals include a target to halve the number of people without access to "improved" water sources, which include piped water supply. However, an "improved" source of water does not

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14

Proser, Noah. "Energy Storage: Technology for a More Efficient Grid." Scholarship @ Claremont, 2011. http://scholarship.claremont.edu/cmc_theses/264.

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Energy storage technologies have the potential to revolutionize the electric grid by allowing for the integration of renewable generation while increasing the utilization and efficiency of current grid assets. These technologies include pumped hydroelectric storage, compressed air energy storage (CAES), flywheels, batteries, thermal energy storage (TES), super capacitors, and superconducting magnetic energy storage (SMES). While energy storage has been implemented in some areas, its benefits are greatly undervalued by current regulatory frameworks leading to suboptimal outcomes for grid operat

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15

Barbour, Edward. "Investigation into the potential of energy storage to tackle intermittency in renewable energy generation." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8189.

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Renewable Energy is by nature intermittent and matching the supply of energy to specific time dependent demand poses huge challenges. Energy storage is a useful tool in handling this temporal disparity, although except for regions very suitable for pumped hydroelectric storage schemes, it suffers from being technically difficult to implement and costly as a result. This study investigates the potential benefits offered by various scales of energy storage to different types of renewable energy generation. It also explores the economic drivers behind energy storage operating as part of an electr

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Salevid, Karin. "Market Requirements for Pumped Storage Profitability : Expected Costs and Modelled Price Arbitrage Revenues, Including a Case Study of Juktan." Thesis, Uppsala universitet, Elektricitetslära, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-210136.

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The rapid integration of intermittent renewable energy sources (IRES) has caused a growing demand for power system flexibility on energy markets all over Europe. Being the only commercially proven large scale energy storage technology, pumped storage hydro power (PSHP) has by several studies been suggested as an efficient solution to mitigate the impact of IRES. However, despite the perceived technical demand profitability remains as a major obstacle for PSHP development. In this study, a market requirement for PSHP profitability, defined in terms of price volatility, is presented. Consider

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17

Gustafsson, Amelie, and Hannes Wiklund. "Batterier i kraftsystemet : En studie i batteriers potential som energilagring för stöd av intermittenta energikällor i det nationella kraftsystemet." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-255867.

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Utveckling av det moderna samhället och den fortsatt accelererande energiintensiva tillvaro människan lever i sätter stor press på klimatet. För att nå de hållbarhetsmål FN satt upp som bland annat innebär minskade utsläpp och effektivare energianvändning krävs krafttag i det globala energisystemet. För att öka andelen modern och ren energi krävs att sol- och vindkraft prioriteras. Ett stort problem med dessa energikällor är dess intermittenta produktion vilken alstrar oregelbunden elektricitet och ställer nya krav på elnätet. För att underlätta implementering av förnybara energikällor på det

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18

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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19

Alhaider, Mohemmed Masooud. "Optimal Demand Response Models with Energy Storage Systems in Smart Grids." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6451.

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This research aims to develop solutions to relieve system stress conditions in electric grids. The approach adopted in this research is based on a new concept in the Smart Grid, namely, demand response optimization. A number of demand response programs with energy storage systems are designed to enable a community to achieve optimal demand side energy management. The proposed models aim to improve the utilization of the demand side energy through load management programs including peak shaving, load shifting, and valley lling. First, a model is proposed to nd the optimal capacity of the batter

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Estaña, Garcia Guillermo, and Julian Iñigo Ruiz. "Feasibility of converting a Science Park in a cold climate into an “off-grid” facility using renewable energies and seasonal storage systems." Thesis, Högskolan i Gävle, Avdelningen för byggnadsteknik, energisystem och miljövetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30417.

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The collateral effects of fossil fuels push humanity to seek solutions to these adversities. Energy efficiency and renewable energies have gone from being almost imaginary concepts to necessary. Several studies have shown that self-sufficiency through photovoltaic systems and wind energy is possible. In addition, it is necessary a storage of the surpluses of both since it increases notably the efficiency of these systems and supposes to the short/medium term a saving of money in the consumer. Due to the mentioned before, the aim of the thesis is to convert a science park located in a cold clim

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21

Anderson, Matthew John. "Economic and Environmental Analysis of Cool Thermal Energy Storage as an Alternative to Batteries for the Integration of Intermittent Renewable Energy Sources." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/51195.

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The balance of the supply of renewable energy sources with electricity demand will become increasingly difficult with further penetration of renewable energy sources. Traditionally, large stationary batteries have been used to store renewable energy in excess of electricity demand and dispatch the stored energy to meet future electricity demand. Cool thermal energy storage is a feasible renewable energy balancing solution that has economic and environmental advantages over utility scale stationary lead-acid batteries. Two technologies, ice harvesters and internal-melt ice-on-coil cool thermal

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22

Ahmed, Samar. "Carbon neutral scenarios for Växjö municipality." Thesis, Linnéuniversitetet, Institutionen för byggd miljö och energiteknik (BET), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-104962.

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Sweden’s municipalities are leading the green energy transition, in this study, a techno-economic evaluation was done for a number of carbon neutral scenarios for Växjö municipality’s future energy system, situated within Sweden’s projected energy demand development in 2030 and 2050. The municipality’s partially decentralized energy system relies heavily on interconnected electricity supply from the national grid, and fuels imports from other parts of Sweden. It was a matter of question: in which ways will future demand changes induce supply changes, and whether a future carbon neutral energy

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23

Johansson, Jim. "Utilizing Energy Storage Applied on Floating Wind Turbine Economics Using a Spot-Price Based Algorithm." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-328934.

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In this paper, a new algorithm for utilizing energy storage is proposed and applied on floating wind turbine economics. The proposed algorithm’s decision making on storing energy or selling electricity onto the grid is based on the electricity price, which makes it unique and different from similar algorithms. From the literature review, it was concluded Ocean Renewable Energy Storage to be most suitable with the Spar-Type and Semi-Submersible floating wind turbine to which the paper is based upon. The objective of this paper is to find the suitable ratio of energy storage versus wind farm, fi

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Torres, Escalona Javier. "Electronic properties study on hydrazines and nitriles complexed by Lewis acids. Towards chemical hydrogen storage." Thesis, Pau, 2017. http://www.theses.fr/2017PAUU3051.

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Dans la problématique de l'utilisation de nouvelles énergies non polluantes, l'hydrogène est l'un des principaux carburants verts du futur. Les dérivés d'hydrazine et de borane sont potentiellement intéressants pour le stockage chimique de l'hydrogène. Les complexes entre hydrazines ou nitriles avec des boranes ou des alanes sont à la base de cette étude. Ces composés ont été synthétisés afin d'étudier leur structure électronique avant et après la création de la liaison entre les acides et les bases de Lewis. La spectroscopie photoélectronique à rayonnement UV (UV-SPE) est utilisée comme outil

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Labidi, Mouchira. "Optimisation de chaufferies collectives multi-energies : dimensionnement et commande de systèmes de stockage thermique par hydro-accumulation." Thesis, Perpignan, 2015. http://www.theses.fr/2015PERP0007.

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Les travaux présentés dans ce manuscrit portent sur l’optimisation d’une chaufferie collective multi-énergie en l’équipant d’un système de stockage thermique de type hydro-accumulation. L’efficacité de ce dernier dépend de sa capacité à conserver son énergie initiale. Ainsi, pour minimiser les pertes thermiques, le système de stockage doit être correctement isolé. Un modèle de ballon d’hydro-accumulation stratifié est développé et validé expérimentalement. Une étude paramétrique est menée afin d’étudier l’impact, sur les pertes thermiques, de paramètres géométriques et météorologiques. Ensuite

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Tröndle, Tobias Wolfgang [Verfasser], and Ulrich [Akademischer Betreuer] Platt. "Development of a global electricity supply model and investigation of electricity supply by renewable energies with a focus on energy storage requirements for Europe / Tobias Wolfgang Tröndle ; Betreuer: Ulrich Platt." Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://d-nb.info/1180395549/34.

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Anzalchi, Arash. "Advanced Solutions for Renewable Energy Integration into the Grid Addressing Intermittencies, Harmonics and Inertial Response." FIU Digital Commons, 2017. https://digitalcommons.fiu.edu/etd/3506.

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Numerous countries are trying to reach almost 100\% renewable penetration. Variable renewable energy (VRE), for instance wind and PV, will be the main provider of the future grid. The efforts to decrease the greenhouse gasses are promising on the current remarkable growth of grid connected photovoltaic (PV) capacity. This thesis provides an overview of the presented techniques, standards and grid interface of the PV systems in distribution and transmission level. This thesis reviews the most-adopted grid codes which required by system operators on large-scale grid connected Photovoltaic system

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Edagi, Fernando Kazuhiro. "Pós-colheita de nêspera \'Fukuhara\': efeito de compostos salicilados, 1-metilciclopropeno e tratamentos térmicos." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-09092009-103213/.

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O presente trabalho teve como objetivo desenvolver técnicas para o aumento da conservação de nêsperas cv. Fukuhara, evitando a perda de suculência, enrijecimento e escurecimento da polpa dos frutos. Para tal, aliou-se ao armazenamento refrigerado (1°C) a aplicação de compostos salicilados, 1-metilciclopropeno e tratamentos de condicionamento térmico. Em um primeiro experimento foi aplicado o ácido salicílico (AS) por imersão nas concentrações de 0, 1, 10 e 100mM e o salicilato de metila (MeSA) na forma gasosa a 0,05mM. No segundo experimento foi aplicado o 1- metilciclopropeno (1-MCP) a 0, 50,

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Beauchêne, Solène. "Le Smart Thermogène Grid ® : étude des potentiels de récupération, de stockage et de redistribution des énergies fatales et renouvelables, optimisation et gestion d’un système intelligent intégrant l’ensemble des énergies disponibles dans le bâtiment." Thesis, Ecole nationale des Mines d'Albi-Carmaux, 2016. http://www.theses.fr/2016EMAC0002/document.

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Le projet Smart Thermogène Grid® s’intègre dans la dynamique actuelle d’économie d’énergie en s’intéressant à la mise en œuvre de solutions de récupération et de stockage des énergies fatales et renouvelables dans le bâtiment résidentiel. L’objectif de ce travail de thèse est de proposer une approche globale permettant le choix et le dimensionnement de ces systèmes. Ce manque freine leur intégration au sein du bâtiment ainsi que l’évolution du bilan énergétique. Dans ce contexte, une modélisation de type « boites grises » qui se base sur un assemblage de modules (récupérations sur air extrait,

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Dini, Cosmin. "Mécanismes de traitement des données dans les réseaux de capteurs sans fils dans les cas d'accès intermittent à la station de base." Phd thesis, Université de Haute Alsace - Mulhouse, 2010. http://tel.archives-ouvertes.fr/tel-00576919.

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Les réseaux des capteurs sans fil sont considérés comme une alternative aux réseaux câblés afin de permettre l'installation dans des zones peu accessibles. Par conséquent, de nouveaux protocoles ont été conçus pour supporter le manque des ressources qui est spécifique à ce type de réseau. La communication entre les nœuds est réalisée par des protocoles spécifiques pour la gestion efficace de l'énergie. La gestion des données collectées par ces nœuds doit être également prise en compte car la communication entre les nœuds engendre un coût non négligeable en termes d'énergie. De plus, l'installa

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Eriksson, Pernilla, and Martin Sundell. "EXPLORING MARKET FORCES FOR TRANSMISSION EXPANSION AND GRID STORAGE INTEGRATION : A technical-economic thesis about variation moderators for intermittent renewable power generation in the developed country of Sweden and the developing country of China." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-28560.

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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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Carriere, Thomas. "Towards seamless value-oriented forecasting and data-driven market valorisation of photovoltaic production." Thesis, Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLM019.

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La décarbonation de la production d’électricité à échelle mondiale est un élément de réponse clé face aux pressions exercées par les différents enjeux environnementaux. Par ailleurs, la baisse des coûts de la filière photovoltaïque (PV) ouvre la voie à une augmentation significative de la production PV dans le monde. L’objectif principal de cette thèse est alors de maximiser le revenu d’un producteur d’énergie PV sous incertitude des prix de marché et de la production. Pour cela, un modèle de prévision probabiliste de la production PV à court (5 minutes) et moyen (24 heures) terme est proposé.

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Vega, Fausto Alfredo Canales. "Simulação e dimensionamento ótimo de sistemas autônomos híbridos com reservatórios hidrelétricos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/132970.

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O interesse mundial e os investimentos em fontes renováveis de energia têm aumentado consideravelmente nos últimos anos. Estas tecnologias têm a vantagem de aproveitar os recursos disponíveis localmente, reduzindo a dependência de fontes externas. Entretanto, um dos principais problemas associados a muitas das tecnologias de energias renováveis é sua imprevisibilidade ou intermitência. O armazenamento de energia é a técnica mais utilizada para moderar estas intermitências. Para aproveitamento em grande escala, os reservatórios hidrelétricos (de usinas hidrelétricas convencionais com reservatór

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Zeaiter, Ali. "Caractérisation et modélisation du comportement des alliages TiFe dédiés au stockage solide d'hydrogène. : Application à l'amélioration des performances d'un réservoir à hydrures métalliques." Thesis, Bourgogne Franche-Comté, 2017. http://www.theses.fr/2017UBFCD007/document.

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Les problèmes environnementaux et économiques, engendrés par l’usage des produits pétroliers, et la pénurie de ces énergies fossiles ont conduit à rechercher d’autres sources d’énergies, renouvelables et respectueuses de l’environnement. Nombre de ces sources sont intermittentes et nécessitent de prévoir des solutions de stockage. Le gaz de dihydrogène apparait comme un bon candidat pour remplir cette fonction. L’élément hydrogène, abondant dans la nature, présente sous sa forme gazeuse un pouvoir calorifique de 140 MJ/kg, soit 2,5 fois celui de l’essence. La filière ’hydrogène’ s’appuie sur 3

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Wrzolek, Pierre. "Entwicklung neuer mononuklearer Wasseroxidations- und Sauerstoffreduktionskatalysatoren auf Basis des „Hangman“-Typs und deren Einsatz in der homogenen und heterogenen Katalyse." Doctoral thesis, Humboldt-Universität zu Berlin, 2017. http://dx.doi.org/10.18452/18032.

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Die vorliegende Arbeit befasste sich mit der Entwicklung neuer Hangmankomplexe, die auf ihre katalytischen Fähigkeiten bei der Wasseroxidation oder bei der Sauerstoffreduktion hin untersucht wurden. Diese beiden katalytischen Reaktionen sind von entscheidender Rolle bei der Speicherung erneuerbarer Energien in Form einer chemischen Bindung. Des Weiteren wurden im Rahmen dieser Arbeit mechanistische Studien an bekannten Katalysatorsystemen mittels verschiedener spektroskopischer Methoden durchgeführt. Als Referenzsystem bei der katalytischen Wasseroxidation diente der Komplex [Ru(tpy)(bpy)(OH

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Simpore, Sidiki. "Modélisation, simulation et optimisation d'un système de stockage à air comprimé couplé à un bâtiment et à une production photovoltaïque." Thesis, La Réunion, 2018. http://www.theses.fr/2018LARE0039/document.

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En raison de la variabilité et de l'intermittence de l'énergie solaire photovoltaïque, son intégration à grande échelle dans le mix énergétique des micros réseaux intégrant différents moyens de production demeure compliquée. En plus, cette variabilité de la ressource solaire ne permet pas l’utilisation du photovoltaïque seul pour des systèmes énergétiques autonomes. Une des solutions pour surmonter ces handicaps est le stockage d'énergie qui est généralement basé sur l’utilisation de batteries lithium-ion. Cependant, leur coût élevé et leur impact négatif sur l'environnement lors de l'extracti

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Amicarelli, Elvira. "Stratégies de gestion des réseaux électriques intelligents à fort taux de production renouvelable distribuée." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAT056/document.

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En 2007 avec la directive sur les énergies renouvelables, l’Union Européen s’est engagée à développer une économie à faible intensité de carbone. Cette directive amène à réduire les émissions de gaz à effet de serre en augmentant entre autres la partie d’énergie produite par des sources renouvelables. Le processus d’insertion massive d’énergies renouvelables dans le mix électrique européen, est d’ores et déjà un fait acquis et ses effets sont tangibles. Cependant, à côté de ses effets environnementaux bénéfiques, l’intégration à large échelle du renouvelable ne va pas sans causer des interroga

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Marguerite, Charlotte. "Modèles intégrés pour l'évaluation des actions territoriales de réduction des émissions de gaz à effet de serre. Application aux réseaux de chaleur : Application aux réseaux de chaleur : HeatGrid, un modèle de simulation énergétique pour un management stratégique." Phd thesis, Ecole des Mines de Nantes, 2014. http://tel.archives-ouvertes.fr/tel-01019088.

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Du fait de la flexibilité énergétique qu'ils offrent et de leur potentiel de diminution des émissions de GES et de polluants, les réseaux de chaleur (RdC) sont un des leviers d'actions des politiques énergétiques locales en constante progression. Leur déploiement et/ou rénovation n'est pas qu'une question technico-économique classique, dans la mesure où ils sont au cœur d'un ensemble d'acteurs interconnectés, aux objectifs spécifiques, tous parties prenantes des politiques énergétiques locales. Dans ce contexte, les outils permettant à ces différents acteurs l'évaluation des actions liées aux

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Júnior, Jorge Paulo Cabral. "Recursos energéticos distribuídos numa rede elétrica: um estudo de caso." Master's thesis, Instituto Politécnico de Setúbal. Escola Superior de Tecnologia de Setúbal, 2019. http://hdl.handle.net/10400.26/31356.

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Dissertação do Mestrado em Engenharia Eletrotécnica e de Computadores - Ramo de Energias Renováveis e Sistemas de Potência<br>A redução das emissões de CO2 na atmosfera, requer apostas em soluções sustentáveis, sendo uma delas a integração de energias renováveis variáveis (ERV) na rede. A transição para sistemas em que existe forte penetração de ERV, exige o aumento de flexibilidade do sistema elétrico. Um dos requisitos para garantir essa flexibilidade, é o armazenamento de energia. O armazenamento de energia permite mitigar vários problemas na rede, entre eles, a duck curve. Foi realizado o

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Huet, Lila. "Role of electric flexibility in the future French grid with high renewable integration." Thesis, KTH, Energiteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263063.

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The operation of electric grids depends on the balance between the electric generation and the demand. In France, the Transmission System Operator, RTE, is responsible for the stability and the security of the grid. Today, the electric generation follows the variations of the demand. However, environmental concerns prompt to develop new strategies and policies for Energy Transition. The development of Smart Grids, the uncertain future of nuclear generation, the massive integration of renewable sources are the focus of those. Furthermore, renewable energies generation is intermittent and can no

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Saulich, Sven. "Generic design and investigation of solar cooling systems." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13627.

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This thesis presents work on a holistic approach for improving the overall design of solar cooling systems driven by solar thermal collectors. Newly developed methods for thermodynamic optimization of hydraulics and control were used to redesign an existing pilot plant. Measurements taken from the newly developed system show an 81% increase of the Solar Cooling Efficiency (SCEth) factor compared to the original pilot system. In addition to the improvements in system design, new efficiency factors for benchmarking solar cooling systems are presented. The Solar Supply Efficiency (SSEth) factor p

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Ferreira, Pedro Cardoso de Lemos. "Requisitos de Flexibilidade para a Integração em Larga Escala de Energia Solar Fotovoltaica." Master's thesis, 2019. http://hdl.handle.net/10316/87974.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>A transição energética dos combustíveis fósseis para as energias renováveis é o grande desafio do século XXI e a energia solar fotovoltaica assume um papel fundamental para a garantir. Os avanços tecnológicos estão a permitir tornar cada vez mais rentável a energia solar fotovoltaica, pelo que é expectável um crescimento significativo da sua potencia instalada a nível mundial. Portugal é dos países com maior índice de radiação solar da União Europeia, e apesar da

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Nunes, Rui Jorge Passos Lopes. "Planeamento de Sistemas de Energia 100% Renováveis." Master's thesis, 2017. http://hdl.handle.net/10316/83419.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>A integração de fontes renováveis no sector elétrico é uma realidade na maioria dos países europeus. O tema assume uma grande importância no sentido em que permite o aproveitamento dos próprios recursos energéticos, diminuindo a necessidade de matérias primas importadas, cuja utilização é responsável por problemas ambientais. No entanto, a intermitência das fontes renováveis obriga a um planeamento da sua implementação, de forma a avaliar o seu potencial, mas tam

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Ferreira, Diogo Francisco Nascimento. "Avaliação de tecnologias para a integração em larga escala de energia solar fotovoltaica." Master's thesis, 2017. http://hdl.handle.net/10316/82926.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>As energias renováveis apresentam-se cada vez mais como o futuro do cenário energético mundial. Portugal oferece condições climatéricas privilegiadas para a integração deste tipo de energias, com especial destaque a energia solar fotovoltaica, sendo um dos países com maior índice de radiação solar na Europa. Contudo, a mudança do sistema atual, fortemente dependente de sistemas de geração previsíveis e controláveis, para um sistema totalmente renovável, necessita

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Ferreira, João António Alves. "Análise técnica e económica de tecnologias de armazenamento de energia elétrica para a integração em larga escala de geração renovável intermitente." Master's thesis, 2017. http://hdl.handle.net/10316/83049.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>Renewable energies are the obvious option to ensure a sustainable future. The wide availability and diversity of natural energy resources allows the development of flexible generation technologies adapted to the needs of electric power systems. In Portugal, the potential of wind, solar and hydro power enable an energy future mainly based on renewable energy. However, changing from predictable and easily controllable fossil energy systems, to systems that use natu

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(9910323), Haizhen Wang. "Development of Sustainable Energies from Solar." Thesis, 2021.

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Energy occupies a pivotal position in the development and progress of today's society. From the daily lives of residents to international transportation, the limited non-renewable energy resources on the earth are being exhausted. With increasing world energy demand and the shortage of fossil fuels, solar energy has become a key technology to solve energy problems. Compared with the serious pollution caused by fossil fuels, solar energy is clean and free. Nowadays, countries around the world are rapidly developing solar energy technology to alleviate the crisis caused by energy shortages. As a

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Teleke, Sercan. "Control methods for energy storage for dispatching intermittent renewable energy sources." 2009. http://www.lib.ncsu.edu/theses/available/etd-11022009-151719/unrestricted/etd.pdf.

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Luo, Yu-Qiao, and 羅宇喬. "The Optimization of Capacity of Energy Storage System in Microgridwith Renewable Energies." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/45092853933509614582.

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碩士<br>中原大學<br>電機工程研究所<br>102<br>Due to theproblem of running out fuel and global warming is getting worse and worse. Countries around the world began to pay attention to develop renewable energy to solve the rising energy costs and global climate changes. Based on the instability of renewable energy, the Technologies of smart grid and microgrid are being developed around the world. The research and construction of microgrid have been booming. 　　Microgrid which consists of loads, energy storages and distributed generations can operate under Independent operation, grid connected or islanding m

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Sundararagavan, Sandhya. "Characteristics of Electricity Storage Technologies for Maintaining Reliability of Grid with High Amounts of Intermittent Energy." 2010. https://scholarworks.umass.edu/theses/489.

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For the grid to be stable, the supply of power must equal the demands of the consumer at every moment during the day. The unpredictable intermittent nature of wind results in inconsistent power generation. Energy storage technologies coupled with a wind farm can not only provide power during fluctuations but also maintain a stable and reliable grid. The objective of the thesis is to perform a comprehensive analysis of different types of energy storage technologies that can be coupled with a wind farm. The analysis is performed on the basis of multiple characteristics which affect their viabili

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