Article
Economics
Chi Kong Chyong, David Newbery
Summary: This article presents a calibrated unit commitment dispatch model applied to the GB electricity market, focusing on the economic analysis of hydro pumped storage (PS) stations. The study finds that an increase in variable renewable electricity (VRE) can increase the profit of PS stations, with the effect depending on the generation mix. A higher share of wind and solar energy in the system is required to achieve similar profitability with a more flexible system.
Article
Engineering, Electrical & Electronic
Shubhrajit Bhattacharjee, Ramteen Sioshansi, Hamidreza Zareipour
Summary: This study examines the behavior of a strategic firm investing in and operating wind, energy storage, and transmission. Using a bi-level stochastic optimization model, the firm's capacities and offering strategies are determined to maximize expected profits in a centrally dispatched electricity market. The model, applied to a case study based on Alberta's electricity market, utilizes multi-cut Benders's decomposition to solve the resulting large-scale optimization problem.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2021)
Article
Economics
Stefan Lamp, Mario Samano
Summary: This study examines the charging and discharging patterns of utility-scale batteries in the California market and finds that battery owners only respond to price incentives during certain hours. The deployment of batteries between 2013 and 2017 has reduced average intra-day wholesale price spreads. However, the profitability of batteries in this market is currently limited by market conditions.
Article
Energy & Fuels
Emil Hosius, Johann Seebass, Benjamin Wacker, Jan Chr. Schlueter
Summary: The aim of this paper is to estimate the effect of offshore wind energy on wholesale electricity prices and compare it with the impact of onshore wind. Different time series models were used to analyze the data from Germany, Western Denmark, and Great Britain. The results show that onshore and offshore wind power have significantly different impacts on wholesale electricity prices in these countries.
Article
Economics
Paulina A. Rowinska, Almut E. D. Veraart, Pierre Gruet
Summary: The study introduces a four-factor arithmetic model for electricity baseload spot prices in Germany and Austria, incorporating deterministic and stochastic components as well as exogenous factors. It was found that considering the impact of wind energy generation on prices improves model fit.
Article
Multidisciplinary Sciences
Takuya Hara
Summary: This study presents a mathematical formulation for determining the optimal capacities of generation and storage in renewable power systems based on demand and power generation profiles. It also quantifies the relationships among technology costs, optimal capacities, and total system cost. The study demonstrates the importance of hybrid systems and long-duration energy storage in reducing overall system cost.
Article
Energy & Fuels
Ewa Chomac-Pierzecka, Anna Sobczak, Dariusz Sobon
Summary: The economic crisis caused by the COVID-19 pandemic has increased the problem of rising electricity prices, particularly affecting countries that are obliged to pay higher CO2 emission allowance fees like Poland. In light of the urgent development of the wind energy market in the Baltic Sea region, the authors emphasize the importance of examining this issue in Poland and the Baltic States (Lithuania, Latvia, Estonia). The study aims to assess the development of the wind energy market in Poland in relation to the Baltic Sea countries during the COVID-19 pandemic and identify potential directions for wind energy development that could help mitigate electricity price increases.
Article
Chemistry, Multidisciplinary
Roland Kobla Tagayi, Seungyun Han, Hyewon Lee, Jonghoon Kim
Summary: To reduce carbon emissions, the use of renewable energy sources, particularly wind power generators, is increasing. This study proposes a frequency regulation support strategy using a wind power generator and lithium-ion battery, assigning different roles to each. The strategy achieves higher frequency support by releasing more stored energy from the generator and battery during synchronous generator trips.
APPLIED SCIENCES-BASEL
(2023)
Article
Green & Sustainable Science & Technology
Yunpeng Xiao, Xifan Wang, Xiuli Wang
Summary: The paper proposes a modified intra-day market model that allows for direct trading of power deviation forecast information, instead of trading deviated power. This new market model increases market liquidity, improves demand response participation, and helps reduce purchasing costs.
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
(2021)
Article
Energy & Fuels
Kenji Doering, Luke Sendelbach, Scott Steinschneider, C. Lindsay Anderson
Summary: Increases in wind generation drive average spot prices down in both the low and high price regime. However, system shortfalls of wind generation, particularly during times of high load, result in increased price magnitudes in both regimes, as well as more frequent price spike events.
Editorial Material
Chemistry, Physical
Alberto Boretti
Summary: NEOM City plans to be a renewable-energy-only city, but the issue of long-term, large-scale energy storage has not been addressed. Battery energy storage can only handle small amounts of energy, and other solutions are still in the idea stage. The most attractive solution is to use extra wind and solar energy to produce hydrogen, which can be used to stabilize the grid and export excess energy.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Lazaro Endemano-Ventura, Javier Serrano Gonzalez, Juan Manuel Roldan Fernandez, Manuel Burgos Payan, Jesus Manuel Riquelme Santos
Summary: The paper presents a method to calculate the optimal bidding strategy for a wind power plant and validates it using real data and market conditions. The optimal bidding strategy mainly depends on the system deviation, showing more advantages in practical applications.
Article
Multidisciplinary Sciences
Mustapha Mukhtar, Humphrey Adun, Dongsheng Cai, Sandra Obiora, Michael Taiwo, Ting Ni, Dilber Uzun Ozsahin, Olusola Bamisile
Summary: Recently, the IEA released a roadmap for global energy sector to achieve net-zero emission by 2050. It is crucial for African countries to make commitments as their share in global population is significant. Therefore, it is important to study and analyze sustainable solutions to energy poverty in Africa.
SCIENTIFIC REPORTS
(2023)
Article
Green & Sustainable Science & Technology
Siyuan Wang, Guangchao Geng, Junchao Ma, Quanyuan Jiang, Hongyang Huang, Boliang Lou
Summary: This paper presents an approach to define, identify and eliminate operational bottlenecks in power systems caused by renewable energy, with a focus on system balance and energy storage requirements. The method employs mixed-integer linear programming and density-based spatial clustering to identify and eliminate bottlenecks, comparing various options for their removal. Case studies demonstrate that energy storage is the most effective option for eliminating identified bottlenecks.
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
(2021)
Article
Energy & Fuels
Ruilian Wang, Rongxin Zhang
Summary: Wind energy resources based on hydrogen energy storage systems are considered as clean alternative sources for sustainable development. A low-cost hydrogen energy storage system is seen as the foundation of a renewables-hydrogen economy. Hybridization of wind turbines and hydrogen storage provides a promising energy system.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Hakan Karan, R. Camilla Thomson, Gareth P. Harrison
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
(2020)
Article
Energy & Fuels
Zihao Li, Daniel Friedrich, Gareth P. Harrison
Article
Chemistry, Physical
Jing Liu, Wei Sun, Gareth P. Harrison
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Engineering, Multidisciplinary
Wei Sun, Fabian Neumann, Gareth P. Harrison
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2020)
Article
Green & Sustainable Science & Technology
Oluwadamilola Oluwole, Adam J. Collin, Adriaan H. van der Weijde, Aristides E. Kiprakis, Gareth P. Harrison
ENERGY FOR SUSTAINABLE DEVELOPMENT
(2020)
Article
Thermodynamics
Xiaoyi Ding, Wei Sun, Gareth P. Harrison, Xiaojing Lv, Yiwu Weng
Article
Chemistry, Physical
Wei Sun, Gareth P. Harrison, Paul E. Dodds
Summary: Power-to-Gas is a cost-effective process that produces hydrogen from electricity, capturing excess renewable energy in future energy systems. It is economically competitive and effective even at high levels of renewable penetration.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Multidisciplinary Sciences
Zihao Li, Wei Sun, Yue Xiang, Camilla Thomson, Gareth Harrison
Summary: Current methods of reducing carbon emissions on campus often require substantial investment, and universities with existing infrastructure have not thoroughly considered potential opportunities for reducing carbon dioxide and energy consumption. This study introduces an indirect and soft demand response strategy, semester arrangement, as a new perspective for worldwide university operators aiming to reduce CO2 emissions.
Correction
Engineering, Environmental
R. Camilla Thomson, John P. Chick, Gareth P. Harrison
INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT
(2022)
Article
Green & Sustainable Science & Technology
John M. Low, R. Stuart Haszeldine, Gareth P. Harrison
Summary: Decarbonisation of transport emissions is crucial for achieving climate targets, and the available technologies include battery electric vehicles and hydrogen fuel cell electric vehicles. However, battery vehicles are heavier than hydrogen vehicles, resulting in greater road wear and associated costs. This study quantifies the relationship between axle load and road wear, providing an approximate estimation of the additional road maintenance costs as the vehicle fleet transitions to zero emissions vehicles. The findings highlight the need for governmental bodies to consider weight limits, additional axles, or higher standard roads to reduce road wear.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Engineering, Electrical & Electronic
Wei Sun, Gareth P. Harrison
Summary: This study investigates the impact of harmonic regulations on the hosting capacity of distributed generation in distribution networks and proposes a novel capacity assessment approach. The case study demonstrates that strict compliance with harmonic distortion limits could lower the network hosting capacity for DG, but relaxing risk constraints holds significant value.
Proceedings Paper
Green & Sustainable Science & Technology
A. Zakaria, D. Fang, M. Zou, G. Harrison, S. Z. Djokic
Summary: This paper discusses and compares deterministic and probabilistic approaches for assessing hosting capacity of distribution networks for wind-based and PV-based distributed generation. The study confirms that, due to the implementation of dynamic thermal ratings, the firm hosting capacity of wind DG is roughly twice that of PV DG.
2021 IEEE MADRID POWERTECH
(2021)
Article
Computer Science, Information Systems
Hailiang Du, Wei Sun, Michael Goldstein, Gareth P. Harrison
Summary: This paper introduces a general framework for solving optimization for power systems using statistical emulation and uncertainty quantification, providing flexible guides for utilizing renewable generation in the existing network.
Article
Computer Science, Information Systems
Wei Sun, Gareth P. Harrison
Summary: Hydrogen Fuel Cell Electric Vehicles (FCEV) can help reduce carbon emissions, air pollution, and dependency on fossil fuels in the transport sector. A novel real-time load management scheme is introduced to actively operate a hydrogen refuelling station, relieve thermal network constraints, handle renewable energy fluctuations, and release network headroom for connecting renewable generation. The proposed control strategy proves effective in avoiding overloading, saving curtailment, and reducing the station's net cost of electricity consumption.
Article
Energy & Fuels
Wei Sun, Sam Harrison, Gareth P. Harrison
