Article
Green & Sustainable Science & Technology
Bruno Mombello, Fernando Olsina, Rolando Pringles
Summary: Meeting electricity demand with renewable generation requires significant investments exposed to financial risk. This paper proposes a framework for valuing multistage decisions in a grid-scale PV power plant, incorporating compound options to defer, expand, and relocate. The results show that the value of the compound option portfolio exceeds the commonly considered single deferral option, and ignoring expansion and relocation options may lead to underinvestment. These findings have implications for improving allocation efficiency of renewable investments and benefiting stakeholders.
Article
Thermodynamics
Charles Gyamfi Ofori, Godfred Alufar Bokpin, Anthony Q. Q. Aboagye, Anthony Afful-Dadzie
Summary: This study assesses the value of investment delay in renewable energy projects using real options analysis, showing that delaying investments until uncertainties are reduced and maximum benefit is obtained is valuable. High system capacities and favorable renewable energy policies are required to attract private investment in utility-scale renewable energy.
Article
Thermodynamics
Samuele Memme, Alessia Boccalatte, Massimo Brignone, Federico Delfino, Marco Fossa
Summary: The study focuses on integrating a thermal energy storage (TS) system in the Smart Polygeneration Microgrid (SPM) to increase the operation hours of gas turbines and reduce greenhouse gas emissions.
APPLIED THERMAL ENGINEERING
(2022)
Article
Construction & Building Technology
Da Xu, Feili Zhong, Ziyi Bai, Zhibin Wu, Xiaodong Yang, Menglu Gao
Summary: This paper proposes a two-stage real-time multi-energy demand response framework for a high-renewable building microgrid. The first stage formulates an online scheduling model to optimize the building's energy converters and storages, while the second stage defines and evaluates the schedulable multi-energy flexibility for response devices. The proposed method shows effective and superior performances in improving multi-energy economy and flexibility in case studies. The system operating cost can be reduced by up to 36.9% with higher operational flexibility.
ENERGY AND BUILDINGS
(2023)
Article
Energy & Fuels
Ahmad Alzahrani, Khizar Sajjad, Ghulam Hafeez, Sadia Murawwat, Sheraz Khan, Farrukh Aslam Khan
Summary: Real-time energy optimization is crucial for load scheduling, cost reduction, demand and supply balance, and power system reliability. However, the unpredictable nature of renewable energy and electric loads poses challenges for real-time optimization. The Lyapunov optimization technique has emerged as a solution to this problem. This research investigates a smart home with various loads and renewable energy sources in a grid-connected mode to optimize cost and energy storage using the Lyapunov optimization technique.
Article
Energy & Fuels
Anya Heider, Ricardo Reibsch, Philipp Blechinger, Avia Linke, Gabriela Hug
Summary: To achieve climate goals, future energy systems must heavily rely on variable renewable energy sources such as wind and photovoltaic. Analyzing flexibility options and enhancing energy system design can be done through energy system modelling tools. A survey of developers of open energy modelling tools was conducted to assess the representation of flexibility options in current models. The results show a wide range of tools covering most aspects of flexibility, but improvements are needed in storage and network type flexibility for a holistic assessment.
ENERGY STRATEGY REVIEWS
(2021)
Article
Energy & Fuels
Qiang Liu, Mingfei Ban, Haiyang Jiang, Yu Liu, Hang Xu, Jiangtao Guo, Yiqi Liu, Xingyu Shi
Summary: This paper discusses the necessity of establishing a new flexibility system in the Heilongjiang power grid in China, introducing its characteristics and flexibility, and proposing classification and definition methods. A simulation framework is used for quantitative evaluation, and the effectiveness of the proposed method is verified through simulation results.
FRONTIERS IN ENERGY RESEARCH
(2022)
Review
Thermodynamics
Hong Tang, Shengwei Wang, Hangxin Li
Summary: This paper discusses the importance of building energy flexibility in smart grids, proposes a method to categorize building energy flexibility, and analyzes the potential and limitations of buildings in providing energy flexibility.
Article
Energy & Fuels
Samuel Homan, Niall Mac Dowell, Solomon Brown
Summary: Electricity grids around the world are changing rapidly to accommodate the increasing penetration of renewable energy generation. The volatility of grid frequency has significantly increased in recent years. Future frequency response requirements of the grid depend on inertia levels, particularly in situations of large infeed loss.
Article
Green & Sustainable Science & Technology
H. L. Kangas, K. Ollikka, J. Ahola, Y. Kim
Summary: This paper examines the technology convergence of renewable energy sources (RESs) and information and communication technologies (ICTs), focusing on wind power and solar photovoltaic (PV) technologies. Analysis of international patent data reveals a rapid evolution of digital solutions in the renewable energy sector, presenting both challenges and opportunities for innovation and collaboration with ICT companies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Energy & Fuels
Behnam Zakeri, Samuel Cross, Paul E. Dodds, Giorgio Castagneto Gissey
Summary: The share of solar photovoltaic (PV) is rapidly growing worldwide as technology costs decline and national energy policies promote distributed renewable energy systems. Proposed strategies aim to incentivize residential electricity consumers to pair solar PV with battery energy storage to increase self-consumption, optimize consumer costs, and improve economic viability.
Article
Multidisciplinary Sciences
Oluleke O. Babayomi, Davo A. Dahoro, Zhenbin Zhang
Summary: This article discusses the challenges faced by developing countries in the clean energy transition and highlights the impact of low grid capacity, low urbanization rates, and youth demographics on their approach. It proposes prioritizing the development of mature dispatchable low-carbon energy sources as a strategy.
Article
Management
David Matthaeus, Sebastian Schwenen, David Wozabal
Summary: Procurement auctions for renewable energy support have become a standard policy tool for stimulating investment in clean energy. This study combines auction theory and real options theory to analyze the impact of auction design and bidder characteristics on equilibrium bids and realization rates. The results show that bidders who value the flexibility of non-realization bid more aggressively and have lower realization rates.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2021)
Article
Energy & Fuels
Adamantios Bampoulas, Mohammad Saffari, Fabiano Pallonetto, Eleni Mangina, Donal P. Finn
Summary: This paper introduces a fundamental energy flexibility quantification framework applicable to various energy systems commonly found in residential buildings. It analyzes the interactions between these systems and evaluates the flexibility potential and net energy cost of providing flexibility through demand response actions.
Article
Environmental Sciences
Kazeem Bello Ajide, Ekundayo Peter Mesagan
Summary: This study investigates the mediating role of capital investment in the energy-pollution relationship and its interaction with renewable and non-renewable energy in G20 economies from 1990 to 2017. The findings suggest that renewable energy has a negative impact on carbon emissions, while non-renewable energy has a positive impact on pollution. Capital investment reduces pollution in the short run but increases it in the long run. Interacting capital investment with renewable energy lowers pollution, while its interaction with non-renewable energy increases pollution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Energy & Fuels
Lasantha Meegahapola, Pierluigi Mancarella, Damian Flynn, Rodrigo Moreno
Summary: The global increase in power system stability challenges due to transitioning to low-carbon grids with PEC-interfaced RESs and DERs requires integration of new technologies within a market framework to ensure an economically feasible optimal technology mix without burdening electricity consumers. The complexity of system services and the need for careful integration of new grid codes and market mechanisms in order to exploit the full benefits of emerging technologies in the transition towards ultra-low carbon futures are emphasized.
WILEY INTERDISCIPLINARY REVIEWS-ENERGY AND ENVIRONMENT
(2021)
Article
Engineering, Electrical & Electronic
Julian Eggleston, Christiaan Zuur, Pierluigi Mancarella
Summary: Extreme events are increasingly affecting power systems worldwide, requiring new and effective ways to deal with these high-impact, low-probability events. The transition to low-carbon grids, with systems dominated by inverter-based resources, including various types of variable renewable energy sources and distributed energy resources, has further complicated the assessment of operational uncertainty and risk profiles.
IEEE POWER & ENERGY MAGAZINE
(2021)
Article
Engineering, Electrical & Electronic
James Naughton, Han Wang, Michael Cantoni, Pierluigi Mancarella
Summary: This paper introduces a framework that co-optimizes the VPP provision of multiple market, system, and local network services with the aim of maximizing its revenue, broken down into three sequentially coordinated optimization problems. The framework enables effective deployment of VPP flexibility to maximize its multi-service value stack within an uncertain operating environment and technical limits.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2021)
Article
Green & Sustainable Science & Technology
Mehdi Ghazavi Dozein, Ahvand Jalali, Pierluigi Mancarella
Summary: This paper introduces the modelling foundations to study the fast frequency response from utility-scale hydrogen electrolyzers, illustrating how grid-scale HEs could support a more secure and resilient operation of low-carbon systems through dynamic simulations and case studies.
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
(2021)
Article
Engineering, Electrical & Electronic
Shariq Riaz, Pierluigi Mancarella
Summary: This paper proposes a comprehensive DER flexibility modelling and characterization framework that is based on the concept of nodal operating envelope (NOE). It identifies capacity, ramp, duration, and cost as key flexibility metrics and associates them with different but consistent NOEs describing capability, feasibility, ramp, duration, economic, technical, and commercial flexibility features.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2022)
Article
Engineering, Electrical & Electronic
Mehdi Ghazavi Dozein, Bikash Chandra Pal, Pierluigi Mancarella
Summary: This paper presents the modeling fundamentals for studying the dynamics of inverter-based resources (IBRs) in weak distribution grids and proposes disturbance performance characteristics and control requirements. Specifically, it investigates voltage violations caused by low system strength in response to small-signal disturbances and proposes design requirements for IBR d-q current control. In terms of large-signal disturbances, it discusses limitations of active power-voltage control and the enhancement of phase-locked loop stability through IBR reactive power control.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2022)
Article
Engineering, Electrical & Electronic
Sleiman Mhanna, Isam Saedi, Pierluigi Mancarella
Summary: This paper introduces two novel iterative methods for efficiently solving the multiperiod optimal electricity and gas flow problem. Both methods have fast convergence speed and high solution quality, with significant improvement in computation time.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2022)
Article
Engineering, Electrical & Electronic
Sleiman Mhanna, Pierluigi Mancarella
Summary: Despite advancements in nonlinear programming and convex relaxations, linear programming is still widely used by system operators due to its reliability and computational efficiency. This paper proposes a sequential linear programming approach that combines the advantages of LP and NLP methods, providing feasible and high-quality solutions for the nonconvex AC OPF problem.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2022)
Article
Engineering, Electrical & Electronic
Mehdi Ghazavi Dozein, Oriol Gomis-Bellmunt, Pierluigi Mancarella
Summary: This paper conducts a comprehensive analysis of the challenges faced by BESS in providing FFR and dynamic active/reactive responses under low system strength conditions, proposing relevant solutions and verifying their feasibility through mathematical modeling and dynamic simulations.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2021)
Article
Computer Science, Information Systems
Mehdi Ghazavi Dozein, Gilles Chaspierre, Pierluigi Mancarella, Patrick Panciatici, Thierry Van Cutsem
Summary: This article proposes converter-based dynamic equivalent models for both distributed and large-scale PV units in integrated transmission-distribution networks, identifying unknown model parameters through closed-loop identification to improve overall frequency response model accuracy. Validation with real data demonstrates excellent performance, paving the way for adoption in frequency stability analysis in low-carbon grids dominated by frequency-responsive renewables.
IEEE SYSTEMS JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Eduardo Alejandro Martinez Cesena, Yutian Zhou, Jose Nicolas Melchor Gutierrez, Wentao Zhu, Mathaios Panteli, Joseph Mutale, Pierluigi Mancarella, James Tomlinson, Rasheed Baisie, Emmanuel Obuobie, Julien J. Harou
Summary: This paper proposes a simulation methodology for integrated water-energy systems using Mixed Integer Linear Programming (MILP). The methodology aims to adapt and quantify different modelling assumptions under various weather-related conditions. The study demonstrates the benefits of customisable simulations in terms of computational costs and modelling accuracy, and provides guidance for selecting adequate modelling assumptions. The methodology is applied to the Ghanaian integrated water-energy system.
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
(2022)
Article
Engineering, Electrical & Electronic
Mehdi Ghazavi Dozein, Antonella Maria De Corato, Pierluigi Mancarella
Summary: This article presents a modeling foundation for studying the capabilities of hydrogen electrolyzers (HEs) to provide frequency control ancillary services (FCAS) such as virtual inertia and frequency response. A general, unified HE dynamic model is proposed to account for the electrolyzer stack circuit, power-electronics interface (PEI), and converter-level control loops. The model considers current transfer function, physical nonlinearities, and operational constraints. Additionally, a virtual synchronous machine (VSM) control approach is introduced to study the HE's virtual inertia response. The modeling is applied to alkaline and proton exchange membrane (PEM) technologies, and the FCAS performance is assessed through dynamic simulation.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2023)
Article
Engineering, Electrical & Electronic
Diego Alvarado, Rodrigo Moreno, Alexandre Street, Mathaios Panteli, Pierluigi Mancarella, Goran Strbac
Summary: Given the increasing frequency and impact of natural hazards on power systems, planning resilient network investments is of growing importance. This study proposes an optimization approach that considers investment propositions to harden existing infrastructure and determines optimal portfolios of resilient network investments. The model takes into account decision-dependent probabilities and considers distributed energy resources as potential alternatives to costly network investments. Additionally, the lack of fully accurate fragility curves and the inherent uncertainty associated with fragility modeling are addressed through a global-convergent exact algorithm. The case studies conducted in Chile demonstrate the benefits of the proposed network planning approach.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2023)
Article
Green & Sustainable Science & Technology
Saman Dadjo Tavakoli, Mehdi Ghazavi Dozein, Vinicius A. Lacerda, Marc Cheah Mane, Eduardo Prieto-Araujo, Pierluigi Mancarella, Oriol Gomis-Bellmunt
Summary: This paper suggests using hydrogen electrolyzers to provide grid-forming services to the grid and studies the impacts of these services on the electrolyzer. The effectiveness and practical feasibility of the proposed concept are demonstrated through simulations and experiments.
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
(2023)
Article
Engineering, Electrical & Electronic
Guanchi Liu, Maria Vrakopoulou, Pierluigi Mancarella
Summary: Capacity credit refers to the ability of renewable energy sources and/or other resources to replace conventional generators without reducing system reliability. Locational aspects are crucial in assessing supply adequacy from transmission, storage, and renewable energy sources in multi-area power systems. The proposed methodology quantifies the capacity credit of renewable energy sources and storage in a multi-area power system, aiming to inform integrated system planning for large-scale interconnected low-carbon power systems.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2021)
Article
Green & Sustainable Science & Technology
M. Genovese, F. Piraino, P. Fragiacomo
Summary: This research proposes the concept of a hydrogen valley in southern Italy, where hydrogen is produced centrally and delivered via fuel cell hybrid trains to refueling stations, providing transportation services. The analysis from both technical and economic perspectives shows that the cost of hydrogen and energy efficiency reached competitive levels, and hydrogen rail transport offers significant benefits in terms of emissions reduction and economic gains compared to conventional diesel trains and fully electric trains.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Miaomiao Liu, Payam Nejat, Pinlu Cao, Carlos Jimenez-Bescos, John Kaiser Calautit
Summary: This article provides a critical review of the performance of windcatchers, pointing out the current research gaps and issues, and proposing directions for further investigation and market prospects.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Solomon Boadu, Ebenezer Otoo
Summary: Despite Africa's vast energy resources, including wind energy, the continent faces challenges in developing its wind energy industry. Northern African countries and South Africa currently dominate the wind energy sector in Africa. To uplift Africa's socio-economic status, strong political will, supportive policies, and institutional frameworks are needed to drive the development of wind energy and overcome existing challenges.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
E. K. Grubbs, S. M. Gruss, V. Z. Schull, M. J. Gosney, M. V. Mickelbart, S. Brouder, M. W. Gitau, P. Bermel, M. R. Tuinstra, R. Agrawal
Summary: As the global population grows, the demand for food, energy, and water will increase significantly. However, limited land availability and competition for solar resources pose challenges to resource generation technologies. In the United States, both agriculture and solar energy production have adopted densification schemes to improve yields and energy output per unit of land. This research proposes an Agrivoltaic food and energy coproduction architecture that optimizes power generation while maintaining crop productivity by implementing ideal anti-tracking during critical growth periods. This technology offers a viable pathway for widespread solar implementation throughout the contiguous United States.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Han Shao, Rui Henriques, Hugo Morais, Elisabetta Tedeschi
Summary: The integration of offshore wind energy into the electric grid provides opportunities in terms of environmental sustainability and cost efficiency, but poses challenges to power quality. This survey offers a deeper understanding of disturbance detection and classification tools, exploring root causes, disturbance locations, and algorithmic solutions. It highlights synchronized waveform measurement and discusses evaluation metrics for detection and classification algorithms. Additionally, a novel system-wide monitoring framework is proposed.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Eleni Davidson, Yair Schwartz, Joe Williams, Dejan Mumovic
Summary: A continued upward trend in global greenhouse gas emissions poses risks to global infrastructure and built assets. Maintaining high indoor environmental quality standards is a challenge for higher education institutions under future climates. Passive cooling mechanisms may be insufficient to tolerate predicted temperature increases. Different building typologies have varying energy demand projections.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Kexin Pang, Jian Zhou, Stamatis Tsianikas, David W. Coit, Yizhong Ma
Summary: This study proposes a new framework for long-term microgrid expansion planning, using deep reinforcement learning method to consider various uncertainties and constraints. The framework aims to enhance the effectiveness of microgrid expansion planning from the perspectives of economy, resilience, and greenhouse gas emission reduction.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Jun Zhao, Kangyin Dong, Xiucheng Dong
Summary: The continuous growth of global electricity penetration has provided modern energy for alleviating energy poverty, but its impact on carbon neutrality has been overlooked. The research reveals that clean electricity from traditional fossil energy and renewable energy has a positive influence on the greenhouse effect. Eradicating energy poverty can effectively alleviate the greenhouse effect, especially in non-Belt and Road Initiative (B&RI) nations.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Hossein Shahbeik, Hamed Kazemi Shariat Panahi, Mona Dehhaghi, Gilles J. Guillemin, Alireza Fallahi, Homa Hosseinzadeh-Bandbafha, Hamid Amiri, Mohammad Rehan, Deepak Raikwar, Hannes Latine, Bruno Pandalone, Benyamin Khoshnevisan, Christian Sonne, Luigi Vaccaro, Abdul-Sattar Nizami, Vijai Kumar Gupta, Su Shiung Lam, Junting Pan, Rafael Luque, Bert Sels, Wanxi Peng, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: This review explores the production of biocrude oil from biomass feedstocks through the process of hydrothermal liquefaction (HTL). It discusses the impact of process parameters on the quality, quantity, cost, and environmental impacts of biofuels. The review also highlights the challenges and prospects for the future development of biocrude oil.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Meysam Majidi Nezhad, Mehdi Neshat, Georgios Sylaios, Davide Astiaso Garcia
Summary: Digital twins promise innovation for the marine renewable energy sector by using modern technological advances and the existing maritime knowledge frameworks. This research presents critical aspects of digital twin implementation challenges in marine energy digitalization approaches that use and combine data systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Yeganeh Sharifian, Hamdi Abdi
Summary: This paper discusses the background and objectives of the multi-area economic dispatch problem, as well as various techniques and methods applied in this field. It also covers comprehensive formulations of the problem and important issues in the field of probabilistic MAED, along with some related concepts and suggestions.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
J. G. B. Churchill, V. B. Borugadda, A. K. Dalai
Summary: The increasing global energy demand and the need to reduce fossil fuel reliance have created a demand for renewable and sustainable fuel sources. This review explores the potential of tall oil, a by-product of the pulping industry, as a feedstock for biofuels. The review provides an overview of tall oil production, purification, and treatment, and investigates recent trends and barriers towards tall oil-derived biofuels.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
David C. Broadstock, Xiangnan Wang
Summary: This study provides a general review of research on district cooling, identifying key topics and themes and highlighting potential research priorities for future studies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
L. Scharnhorst, D. Sloot, N. Lehmann, A. Ardone, W. Fichtner
Summary: This study investigates and analyzes the barriers to demand response in industrial and commercial sectors, highlighting their significance. Concerns about diminished product quality, disruptions to production processes, human resource management, and revenue uncertainty are identified as the most frequently cited barriers. Overcoming these barriers requires bridging knowledge gaps, allocating sufficient resources, and adapting external incentives and policies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Tong Feng, Yuechi Sun, Yating Shi, Jie Ma, Chunmei Feng, Zhenni Chen
Summary: Air pollution is a significant global challenge, and policymakers have implemented policies to reduce it. Evaluating the effectiveness of these policies is critical, and our study reveals trends and gaps in air pollution policy research. We found that research has shifted from focusing solely on air pollutants to including methodologies, policies, and health implications. China has emerged as a major contributor in this field of research.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
