@article{SelleneitMastHolzhammer2020, author = {Selleneit, Volker and Mast, Tanja and Holzhammer, Uwe}, title = {Method to describe and rate the ability to provide flexibility of residual power providers in electricity grids with a high share of variable renewable energies}, volume = {2020}, journal = {CIRED - Open Access Proceedings Journal}, number = {1}, publisher = {IET}, address = {Stevenage}, issn = {2515-0855}, doi = {https://doi.org/10.1049/oap-cired.2021.0294}, pages = {154 -- 157}, year = {2020}, abstract = {With an increasing ratio of variable renewable energies in Germany, power supply has to be ensured by providing flexibility from controllable supply and demand energy conversion units. For residual electricity supply, utilities in the industrial sector or flexible biogas plants may be suitable flexibility options. To describe and rate different technologies or utilities in terms of their ability to provide flexibility, a definition of flexibility and an innovative method to describe flexibility considering the grid requirements is elaborated. The method is based on a solid definition of flexibility indicators suitable for all technologies. For an increased flexibility, in many cases, it is reasonable to add supporting technologies like a storage to a utility or biogas combined heat and power (CHP). Such utility configurations can also be described with the elaborated method. The method can also make a valuable contribution to all distribution systems or utility system modellers as it can be taken as a basis for the modelling. In this study, the definition of flexibility indicators is described in detail and used on the example of a biogas CHP plant.}, language = {en} } @book{EltropNagelHolzhammeretal.2021, author = {Eltrop, Ludger and Nagel, Sylvio and Holzhammer, Uwe and Mast, Tanja and Selleneit, Volker and Tronnier, Annika and Wachinger, Gisela}, title = {Methodenhandbuch "Bioenergie als Flexibilit{\"a}tsoption im Energiesystem"}, series = {Schriftenreihe "Energetische Biomassenutzung", Band 21}, editor = {Eltrop, Ludger and Holzhammer, Uwe}, publisher = {Deutsches Biomasseforschungszentrum gemeinn{\"u}tzige GmbH}, address = {Leipzig}, issn = {2701-2719}, doi = {https://doi.org/10.48480/m6ak-zr53}, pages = {207}, year = {2021}, language = {de} } @inbook{DotzauerBuechnerEltropetal.2021, author = {Dotzauer, Martin and B{\"u}chner, Daniel and Eltrop, Ludger and H{\"a}rdtlein, Marlies and Henning, Christiane and Herrmann, Andr{\´e} and Holzhammer, Uwe and Kornatz, Peter and Mast, Tanja and Nagel, Sylvio and Oehmichen, Katja and Philipp, Matthias and Pohl, Marcel and Selleneit, Volker and Thr{\"a}n, Daniela}, title = {Flexible Bereitstellung von Bioenergie}, booktitle = {Methodenhandbuch: Stoffstromorientierte Bilanzierung der Klimagaseffekte: Methoden zur Bestimmung von Technologiekennwerten, Gestehungskosten und Klimagaseffekten von Vorhaben im Rahmen des BMWi-Forschungsnetzwerkes Bioenergie/ BMWi-F{\"o}rderbereich „Energetische Biomassenutzung"}, editor = {Thr{\"a}n, Daniela and Pfeiffer, Diana}, edition = {Version 5}, publisher = {Deutsches Biomasseforschungszentrum gemeinn{\"u}tzige GmbH}, address = {Leipzig}, isbn = {978-3-946629-58-0}, doi = {https://doi.org/10.48480/ddpt-ys74}, pages = {56 -- 108}, year = {2021}, language = {de} } @inproceedings{MastHolzhammerPhilipp2018, author = {Mast, Tanja and Holzhammer, Uwe and Philipp, Matthias}, title = {SmartBio : Biogasanlagen als Akteur in neuen intelligenten, regionalen M{\"a}rkten}, booktitle = {Tagungsband 12. Rostocker Bioenergieforum 2018}, editor = {Nelles, Michael}, publisher = {Universit{\"a}t Rostock}, address = {Rostock}, isbn = {978-3-86009-473-0}, url = {https://www.openagrar.de/receive/dimport_mods_00001878}, pages = {143 -- 150}, year = {2018}, language = {de} } @inproceedings{MastNagelHolzhammeretal.2020, author = {Mast, Tanja and Nagel, Sylvio and Holzhammer, Uwe and Eltrop, Ludger}, title = {Biogasanlagen neu denken}, booktitle = {Tagungsband 14. Rostocker Bioenergieforum 2020, 19. Dialog Abfallwirtschaft MV}, subtitle = {technisch-{\"o}konomische Charakterisierung f{\"u}r die Einbindung in die modellgest{\"u}tzte Systemanalyse}, publisher = {Universit{\"a}t Rostock}, address = {Rostock}, isbn = {978-3-86009-507-2}, doi = {https://doi.org/10.18453/rosdok_id00002650}, pages = {123 -- 132}, year = {2020}, language = {de} } @inproceedings{NagelMastHolzhammeretal.2020, author = {Nagel, Sylvio and Mast, Tanja and Holzhammer, Uwe and Eltrop, Ludger}, title = {Die Rolle der Bioenergie im Energie- und Mobilit{\"a}tssystem in Deutschland}, booktitle = {Tagungsband 14. Rostocker Bioenergieforum 2020, 19. Dialog Abfallwirtschaft MV}, subtitle = {Ergebnisse einer modellgest{\"u}tzten Systemanalyse}, publisher = {Universit{\"a}t Rostock}, address = {Rostock}, isbn = {978-3-86009- 507-2}, doi = {https://doi.org/10.18453/rosdok_id00002650}, pages = {47 -- 56}, year = {2020}, language = {de} } @inproceedings{MastKollerHolzhammer2020, author = {Mast, Tanja and Koller, Maria and Holzhammer, Uwe}, title = {Verf{\"u}gbarkeit und Erl{\"o}sm{\"o}glichkeiten unterschiedlicher Biogasanlagenkonzepte im Smart-Market-Ansatz}, booktitle = {Tagungsband 14. Rostocker Bioenergieforum 2020, 19. Dialog Abfallwirtschaft MV}, publisher = {Universit{\"a}t Rostock}, address = {Rostock}, isbn = {978-3-86009- 507-2}, doi = {https://doi.org/10.18453/rosdok_id00002650}, pages = {391 -- 397}, year = {2020}, language = {de} } @article{ElMakroumKhallaayounLghouletal.2023, author = {El Makroum, Reda and Khallaayoun, Ahmed and Lghoul, Rachid and Mehta, Kedar and Z{\"o}rner, Wilfried}, title = {Home Energy Management System Based on Genetic Algorithm for Load Scheduling: A Case Study Based on Real Life Consumption Data}, volume = {16}, pages = {2698}, journal = {Energies}, number = {6}, publisher = {MDPI}, address = {Basel}, issn = {1996-1073}, doi = {https://doi.org/10.3390/en16062698}, year = {2023}, abstract = {This paper proposes a home energy management system able to achieve optimized load scheduling for the operation of appliances within a given household. The system, based on the genetic algorithm, provides recommendations for the user to improve the way the energy needs of the home are handled. These recommendations not only take into account the dynamic pricing of electricity, but also the optimization for solar energy usage as well as user comfort. Historical data regarding the times at which the appliances have been used is leveraged through a statistical method to integrate the user's preference into the algorithm. Based on real life appliance consumption data collected from a household in Morocco, three scenarios are established to assess the performance of the proposed system with each scenario having different parameters. Running the scenarios on the developed MATLAB script shows a cost saving of up to 63.48\% as compared to a base scenario for a specific day. These results demonstrate that significant cost saving can be achieved while maintaining user comfort. The addition of supplementary shiftable loads (i.e., an electric vehicle) to the household as well as the limitations of such home energy management systems are discussed. The main contribution of this paper is the real data and including the user comfort as a metric in in the home energy management scheme.}, language = {en} } @article{KaminskiKuesterDanielAokietal.2023, author = {Kaminski K{\"u}ster, Kristie and Daniel, Gebbran and Aoki, Alexandre Rasi and Lambert-Torres, Germano and Navarro Gevers, Daniel and Impinnisi, Patricio and da Silva Pinto, Cleverson Luiz}, title = {Adoption of Local Peer-to-Peer Energy Markets: Technical and Economical Perspectives for Utilities}, volume = {16}, pages = {2364}, journal = {Energies}, number = {5}, publisher = {MDPI}, address = {Basel}, issn = {1996-1073}, doi = {https://doi.org/10.3390/en16052364}, year = {2023}, abstract = {Peer-to-peer (P2P) energy markets constitute a promising approach for locally coordinating the increasing amount of distributed energy resources (DERs) in the distribution system. Although the benefits of P2P markets for the prosumers are already well understood, their impact on utilities is not well discussed nor well understood. This hinders the development of regulatory frameworks, which are still needed to allow for the widespread adoption of decentralized energy markets in any interested country. So far, research has been conducted in specific isolated aspects, making it difficult to understand the overall implications for utilities. The present study aims to tackle this research gap by comprehensively evaluating P2P markets' effects, considering utilities as primary stakeholders. A qualitative roadmap with the overall benefits and challenges of adopting P2P by utilities is outlined to reach this purpose. Technical and economic criteria are assigned for comparing a P2P market to the current regulatory framework. Each criterion is evaluated in a co-simulation platform connecting a market model to a power flow model. Market performance is assessed by revenue analysis, and grid operation indicators evaluate grid performance. Furthermore, network fees are introduced as compensation mechanisms for the net revenue loss. Comparison scenarios encompass network fees and the number of agents, PV, and storage penetration. Results demonstrate that there is no possible benefit for both utilities and prosumers simultaneously if looking exclusively at the financial balance of the market. An equilibrium in benefits for all stakeholders is achievable if non-financial metrics are considered in an integrated market and fee structure analysis. Moreover, results demonstrate that the design of market structures must be sensitive to network configurations and DER penetration changes. This study contributes toward comprehending how the utilities could embrace P2P markets as a feasible solution for grid coordination challenges, opening a new set of questions for further research.}, language = {en} } @article{StoecklIddaSelleneitetal.2023, author = {St{\"o}ckl, Martin and Idda, Johannes and Selleneit, Volker and Holzhammer, Uwe}, title = {Flexible Operation to Reduce Greenhouse Gas Emissions along the Cold Chain for Chilling, Storage, and Transportation - A Case Study for Dairy Products}, volume = {15}, pages = {15555}, journal = {Sustainability}, number = {21}, publisher = {MDPI}, address = {Basel}, issn = {2071-1050}, doi = {https://doi.org/10.3390/su152115555}, year = {2023}, abstract = {The further expansion of renewable energies in Germany requires flexible consumers to balance fluctuations in electricity production from variable renewable energies. Cold storage warehouses, due to their inherent storage capacity and widespread use, are well-suited for integrating more renewable energies. The potential of cold storage warehouses is often viewed in isolation and not in conjunction with the cold chain's upstream and downstream processes. By adjusting the temperatures within the processes, the individual links in the cold chain can be made flexible. To assess the effects of flexibilization on emissions and electricity costs, thermodynamic models of the individual links in the cold chain and of a yogurt pallet are developed and linked together. Due to temperature fluctuations in the products resulting from the flexibilization, emission evaluations must be considered throughout the cold chain. Results of the simulation for the study period show that emissions reductions and electricity cost savings can be achieved in all three links when they are made flexible. However, the savings vary in magnitude. Only minor savings can be achieved in the cooling tunnel. The greatest potential for savings is in refrigerated transport, if deeper cooling occurs in the process before, i.e., in the cold storage warehouse.}, language = {en} }