Article
Chemistry, Physical
Sanghun Park, Nakyung Yoon, Zahid Ullah, Bethwel Kipchirchir Tarus, Byeongwook Choi, Hoo Hugo Kim, Moon Son
Summary: The use of renewable energy is increasing rapidly, but excess residual electricity is a global concern. Storing surplus renewable energy in energy storage systems (ESSs) is important. This study proposes a seawater battery (SWB) as an efficient ESS for intermittent renewable energy sources. Four charging scenarios and two artificial intelligence models are used to evaluate the energy storage capability and estimate the potential of SWBs. The results show that SWB is a promising solution for energy storage and management of intermittent energy sources.
JOURNAL OF POWER SOURCES
(2023)
Article
Green & Sustainable Science & Technology
M. A. J. R. Quirapas, A. Taeihagh
Summary: The Southeast Asian region has the potential to harness energy from the ocean through wave, tidal, and ocean thermal energy conversion, providing clean and reliable alternative sources of energy. Beyond sustainability, the development of ocean renewable energy sector in SEA could also bring socio-economic benefits through job opportunities, cross-industry learning, foreign investments, and improved economic resilience.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Green & Sustainable Science & Technology
Ding Wang, Dachuan Feng, Huaiwu Peng, Feng Mao, Mohammad Hossein Doranehgard, Vikrant Gupta, Larry K. B. Li, Minping Wan
Summary: Wind energy is crucial for achieving a carbon-free world, but the impact of complex terrain on turbine performance is not well understood. This study uses large-eddy simulations to examine the flow around a wind turbine sited on different terrains. The findings show that hilly terrain can increase power generation through speed-up effects, but also leads to wake deficit and deflection, which can affect downstream turbines. By combining passive tracer method and engineering-focused wake models, improved predictions of velocity deficit and wake deflection can be obtained, aiding the design of wind farms on steep terrain with flow separation issues.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Eric O'Shaughnessy, Jenny Heeter, Chandra Shah, Sam Koebrich
Summary: Corporations are the fastest growing source of renewable energy demand in the United States and other key markets, with over 200 large global corporations committing to more aggressive renewable energy targets. Increasing corporate procurement could change the deployment of renewable energy assets, increase the need for flexible grid assets, and challenge formal grid planning and cost allocation.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Review
Chemistry, Physical
Torbjorn Egeland-Eriksen, Amin Hajizadeh, Sabrina Sartori
Summary: Hydrogen energy storage systems are technically feasible but require cost reductions for commercial attractiveness; low energy efficiency of some components affects costs; with the expected increase of intermittent renewable energy in power systems, hydrogen technology may see further development; hybrid systems offer the best solution but need to be tailored to specific situations for optimal efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Muhammad Shahzad Javed, Jakub Jurasz, Pawel Bronislaw Dabek, Tao Ma, Piotr Jadwiszczak, Elzbieta Niemierka
Summary: In order to achieve carbon neutrality in the industrial sector, the use of variable low-carbon and low-cost electricity sources, along with various storage technologies, may be the only viable option. This study investigates different scenarios for manufacturing facilities under different emission reduction targets to determine the most cost-effective decarbonization pathway. The findings emphasize the importance of specific technologies at different decarbonization levels and highlight the critical role of hydrogen facilities in deep decarbonization.
Article
Thermodynamics
Sebastian Schaer, Aldo Bischi, Andrea Baccioli, Umberto Desideri, Jutta Geldermann
Summary: Many arid and semi-arid regions face freshwater scarcity and rely on seawater desalination. Seawater reverse osmosis (RO) is widely used due to its efficiency and low costs, but the energy sources are often from fossil fuels. The substitution by renewable energy sources (RES) is critical, but obstacles such as volatility and cost of electrical energy storage (EES) need to be overcome.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Green & Sustainable Science & Technology
Pablo De Juan-Vela, Asja Alic, Vincenzo Trovato
Summary: This paper discusses the transposition of EU Directive on Renewable Energy Communities into Italian legislation and proposes a method to identify national provisions that do not comply with the EU law. The study reveals incorrect transposition of the EU law in Italy and calls for a revision of policy options for battery storage in Renewable Energy Communities. This work is important for supporting the development of new RECs and formulating appropriate policy options and techno-economic measures.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Hiroto Shiraki, Masahiro Sugiyama, Yuhji Matsuo, Ryoichi Komiyama, Shinichiro Fujimori, Etsushi Kato, Ken Oshiro, Diego Herran Silva
Summary: The Japanese power system has unique characteristics in terms of renewable energy, with VRE expected to supply over 40% of electricity in achieving emission reduction targets. Lowering the capital costs of VREs is crucial for long-term emission reduction goals.
SUSTAINABILITY SCIENCE
(2021)
Article
Economics
John Bistline, Geoffrey Blanford, Trieu Mai, James Merrick
Summary: The emergence of variable renewable energy and battery storage technologies has transformed the electric power sector, requiring more sophisticated methods to capture their unique characteristics. Model simplifications can impact policy analysis related to power sector decarbonization and high renewables deployment, and improving model representations of variable renewables can provide enhanced insights for policymakers and stakeholders.
Article
Green & Sustainable Science & Technology
Aoye Song, Yuekuan Zhou
Summary: In this study, a building-vehicle energy interaction model and a battery circular economy model were developed to simulate the process of reusing retired EV batteries. Results show that reusing retired batteries from EVs to buildings can improve the demand coverage ratio and the renewable penetration ratio. Furthermore, the battery carbon intensity cannot be offset unless both renewables and reused batteries are integrated. The research provides innovative battery circular economy frameworks for electrification transformation, decarbonisation, and sustainable development.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Hon Chung Lau, Steve C. Tsai
Summary: The paper proposes a decarbonization roadmap for Taiwan to achieve net-zero emissions by 2050. It analyzes the status of fossil and non-fossil energies, screens applicable decarbonization technologies, and proposes an energy mix for the future. The roadmap improves on the announced net-zero emissions plan by suggesting a more achievable growth rate for renewable electricity and recommending measures such as clean coal technologies, increased reliance on gas, accelerated carbon capture and storage, delayed phaseout of nuclear energy, and the use of blue hydrogen for decarbonizing transport and industry sectors.
Review
Green & Sustainable Science & Technology
Saikat Saha, Gaurav Saini, Shubhangi Mishra, Anurag Chauhan, Subho Upadhyay
Summary: This research paper provides a comprehensive review of issues related to the Integrated Renewable Energy System (IRES), including storage options, modeling, design parameters, unit sizing methodologies, and control schemes. It discusses various storage options for catering to the stochastic nature of renewable sources and examines different technical, economical, social, and environmental parameters considered during the design of IRES. The paper describes the states of unit sizing methodologies and investigates control schemes for regulating the power output of intermittent sources. Lastly, it discusses several open challenging issues and their possible solutions regarding the design of IRES.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Chemistry, Physical
Qusay Hassan, Aws Zuhair Sameen, Olushola Olapade, Mohammad Alghoul, Hayder M. Salman, Marek Jaszczur
Summary: A large amount of non-dispatchable photovoltaic and wind power is planned in smart cities, but the problem of massive energy storage has not been solved, limiting the use of green energy on a larger scale. Currently, the only available battery energy storage is effective for storing modest quantities of energy for short periods of time. The alternative option is to use electrolyzers to generate hydrogen from green energy and use it to stabilize the grid, but this solution is not widely implemented yet.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Energy & Fuels
Bukola Babatunde Adetokun, Oghenewvogaga Oghorada, Sufyan Ja'afar Abubakar
Summary: This paper provides a clear and concise review on the use of superconducting magnetic energy storage (SMES) systems for renewable energy applications. It discusses the history, operating principle, components, and challenges of SMES. It also compares SMES with other energy storage technologies and presents research on its application in renewable energy.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Economics
Claudia Gunther, Wolf-Peter Schill, Alexander Zerrahn
Summary: As fixed parts of retail tariffs increase, households have lower incentives for self-consumption, leading to smaller optimal battery capacities and self-generation, and increased contribution to non-energy power sector costs.
Article
Multidisciplinary Sciences
Carlos Gaete-Morales, Hendrik Kramer, Wolf-Peter Schill, Alexander Zerrahn
Summary: This paper explores the interaction between future fleets of battery-electric vehicles and the power sector, introducing the open-source tool emobpy for generating time series data that can be applied in various models. By analyzing physical properties and mobility statistics, 200 vehicle profiles for Germany were created and characterized, with a demonstration of the smoothing effect of balanced charging strategies on grid electricity demand.
Article
Computer Science, Software Engineering
Carlos Gaete-Morales, Martin Kittel, Alexander Roth, Wolf-Peter Schill
Summary: DIETERpy is a new framework built on the existing DIETER model, combining the flexibility of Python with the algebraic formulation in GAMS. It offers a user-friendly graphical interface and simplifies model operation for users without deep knowledge of GAMS, while ensuring transparency and reproducibility of data and code.
Article
Thermodynamics
Martin Kittel, Hannes Hobbie, Constantin Dierstein
Summary: Comprehensive numerical models are crucial for analyzing the decarbonization of electricity systems. However, the increasing system complexity and limited computational resources pose limitations on model-based analyses. To reduce computational burden, one approach is to use a minimum yet representative set of system states for model simulation, which characterize fluctuating renewable generation and variable demand for electricity at a specific point in time. This paper presents a systematic multi-stage evaluation approach to compare different cluster analysis configurations in order to support the selection of a cluster algorithm. Results show that electricity demand and renewable energy generation time series can be compressed to less than 1% while maintaining global characteristics of the original data. Two effective cluster configurations, utilizing k-Means and WARD algorithms, are identified. The methodology can also be applied to various types of time-dependent input data.
Article
Green & Sustainable Science & Technology
Hans Christian Gils, Hedda Gardian, Martin Kittel, Wolf-Peter Schill, Alexander Zerrahn, Alexander Murmann, Jann Launer, Alexander Fehler, Felix Gaumnitz, Jonas van Ouwerkerk, Christian Bussar, Jennifer Mikurda, Laura Torralba-Diaz, Tomke Janssen, Christine Krueger
Summary: This paper presents a systematic comparison of nine power sector models with sector coupling, analyzing the impact of differences in technology representation, optimization approaches, and other model features on model outcomes. It identifies structural differences in the optimization approach between models and substantial differences in technology modeling, particularly for battery electric vehicles, reservoir hydro power, power transmission, and demand response. The study highlights the importance of being aware of potential effects of chosen modeling approaches in relevant technology analyses.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Green & Sustainable Science & Technology
Hans Christian Gils, Hedda Gardian, Martin Kittel, Wolf-Peter Schill, Alexander Murmann, Jann Launer, Felix Gaumnitz, Jonas van Ouwerkerk, Jennifer Mikurda, Laura Torralba-Diaz
Summary: This study presents the results of a multi-model comparison to determine outcome deviations resulting from differences in power system models. The findings show that model choice has a robust impact on system operation and investment decisions, while differences in modeling approach and specific technologies lead to comparatively small deviations. The results provide important guidance for modelers and decision-makers in properly evaluating power system model results.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Green & Sustainable Science & Technology
Jonas van Ouwerkerk, Hans Christian Gils, Hedda Gardian, Martin Kittel, Wolf-Peter Schill, Alexander Zerrahn, Alexander Murmann, Jann Launer, Laura Torralba-Diaz, Christian Bussar
Summary: The study reveals that inaccurate assumptions about the availability of technologies can lead to deviations between model results, fixed energy-to-power ratios of storage can change optimal expansion outcomes, and initial and final-period storage levels can affect seasonal storage use.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Multidisciplinary Sciences
Alexander Roth, Wolf -Peter Schill
Summary: To reduce greenhouse gas emissions, many countries are planning to expand wind power and solar photovoltaic capacities. However, these renewable energy sources require additional flexibility in the power sector. This study focuses on the geographical balancing between countries in a 100% renewable energy scenario and reveals that interconnection can reduce the need for electricity storage by about 30%, with the differences in wind power profiles being the main contributing factor.
Article
Multidisciplinary Sciences
Maximilian Parzen, Martin Kittel, Daniel Friedrich, Aristides Kiprakis
Summary: Energy system models are important for policy decisions and technology designs, but their misuse can lead to implausible outputs and mislead decision-making. Through 124 simulations, we explore the impact of variable cost allocation and solver accuracy on unintended storage cycling, and provide recommendations to reduce its occurrence.
Review
Chemistry, Physical
Michael T. Craig, Jan Wohland, Laurens P. Stoop, Alexander Kies, Bryn Pickering, Hannah C. Bloomfield, Jethro Browell, Matteo De Felice, Chris J. Dent, Adrien Deroubaix, Felix Frischmuth, Paula L. M. Gonzalez, Aleksander Grochowicz, Katharina Gruber, Philipp Haertel, Martin Kittel, Leander Kotzur, Inga Labuhn, Julie K. Lundquist, Noah Pflugradt, Karin Van der Wiel, Marianne Zeyringer, David J. Brayshaw
Summary: Energy system models need to integrate climate factors in order to effectively mitigate climate risks and meet climate mitigation goals. This requires interdisciplinary research and collaboration between energy system and climate modeling communities.
Article
Multidisciplinary Sciences
Fabian Stoeckl, Wolf-Peter Schill, Alexander Zerrahn
Summary: Green hydrogen production can help reduce carbon emissions in the transportation sector, but its interactions with the power sector need further study. There is a trade-off between energy efficiency and temporal flexibility in hydrogen supply chains, with different production methods optimal depending on the share of renewables and hydrogen. Large-scale hydrogen supply chains can deliver substantial power sector benefits by reducing renewable curtailment.
SCIENTIFIC REPORTS
(2021)
