Journal of Energy and Power Technology (JEPT) is an international peer-reviewed Open Access journal published quarterly online by LIDSEN Publishing Inc. This periodical is dedicated to providing a unique, peer-reviewed, multi-disciplinary platform for researchers, scientists and engineers in academia, research institutions, government agencies and industry. The journal is also of interest to technology developers, planners, policy makers and technical, economic and policy advisers to present their research results and findings.

Journal of Energy and Power Technology focuses on all aspects of energy and power. It publishes original research and review articles and also publishes Survey, Comments, Perspectives, Reviews, News & Views, Tutorial and Discussion Papers from experts in these fields to promote intuitive understanding of the state-of-the-art and technology trends. 

Main research areas include (but are not limited to):
Renewable energies (e.g. geothermal, solar, wind, hydro, tidal, wave, biomass) and grid connection impact
Energy harvesting devices
Energy storage
Hybrid/combined/integrated energy systems for multi-generation
Hydrogen energy 
Fuel cells
Nuclear energy
Energy economics and finance
Energy policy
Energy and environment
Energy conversion, conservation and management
Smart energy system

Power Generation - Conventional and Renewable
Power System Management
Power Transmission and Distribution
Smart Grid Technologies
Micro- and nano-energy systems and technologies
Power electronic
Biofuels and alternatives
High voltage and pulse power
Organic and inorganic photovoltaics
Batteries and supercapacitors

Archiving: full-text archived in CLOCKSS.

Rapid publication: manuscripts are peer-reviewed and a first decision provided to authors approximately 4.3 weeks after submission; acceptance to publication is undertaken in 6 days (median values for papers published in this journal in the first half of 2020, 1-2 days of FREE language polishing time is also included in this period).

Open Access Research Article

A Switched-Reluctance Motor Drive Powered by Switch-Mode Rectifier with Battery Energy Storage Buffer

Received: 23 December 2020;  Published: 07 April 2021;  doi: 10.21926/jept.2102016

Abstract

This paper presents a three-phase full-bridge boost switch-mode rectifier (SMR) fed switched-reluctance motor (SRM) drive with energy storage buffer. First, the power circuits and control schemes of the two power stages are properly designed. Except for having good line drawn power quality, the boos [...]

Open Access Original Research

Zinc Silicate Thin Film Composites Obtained by a Sputtering Based Approach: Structural, Dielectric and Photovoltaic Properties

Received: 19 January 2021;  Published: 02 April 2021;  doi: 10.21926/jept.2102015

Abstract

Zinc silicates thin films have been obtained by a solid state two steps reaction, consisting in the sputtering deposition of alternating layers of Silicon and Zinc oxide reagents, followed by their annealing carried out at temperatures ranging from 300° to 560 °C, in air or under vacuum. Transparent [...]

Open Access Original Research

Nowcasting Wind, Wave, Current and Turbulence Intensity for Offshore Wind Power Operation and Maintenance

Received: 21 December 2020;  Published: 24 March 2021;  doi: 10.21926/jept.2101014

Abstract

In order to improve offshore wind power operation and maintenance (O&M), particularly during tropical and non-tropical cyclones, short-term forecasts or nowcasts up to 6 hours of meteorological and oceanographic (met-ocean) parameters including wind, waves, currents and turbulence intensity are [...]

Open Access Original Research

Crustal Reservoir Flow Simulation for Long-Range Spatially-Correlated Random Poroperm Media

Received: 30 November 2020;  Published: 19 March 2021;  doi: 10.21926/jept.2101013

Abstract

In interest of accurately modelling wellbore production in convective geothermal systems, we draw attention to two approaches to numerical simulation of crustal fluid flow. The historical ‘’strong’’ approach simulates the fluid mass conservation condition on a localised finite difference mesh approx [...]

Open Access Original Research

Multi-Disciplinary and Multi-Scale Assessment of Marine Renewable Energy Structure in a Tidal System

Received: 08 October 2020;  Published: 17 March 2021;  doi: 10.21926/jept.2101012

Abstract

The French coast of the Atlantic and English Channel (EC) is promising for the development of Marine Renewable Energy (MRE), including wind, wave, and tidal stream, due to the high velocity of currents in some parts of the area. This paper, focusing on wind and tidal energy, discusses how the implem [...]

Open Access Review

Accelerated Controller Tuning for Wind Turbines Under Multiple Hazards

Received: 26 December 2020;  Published: 04 March 2021;  doi: 10.21926/jept.2101011

Abstract

During their lifecycle, wind turbines can be subjected to multiple hazard loads, such as high-intensity wind, earthquake, wave, and mechanical unbalance. Excessive vibrations, due to these loads, can have detrimental effects on energy production, structural lifecycle, and the initial cost of wind tu [...]

Open Access Original Research

High Energy Density Rechargeable Aqueous Lithium Batteries with an Aqueous Hydroquinone Sulfonic Acid and Benzoquinone Sulfonic Acid Redox Couple Cathode

Received: 12 January 2021;  Published: 24 February 2021;  doi: 10.21926/jept.2101010

Abstract

The demand for high energy density rechargeable batteries beyond lithium-ion batteries has increased for electric vehicles. In the present study, a novel high energy density rechargeable aqueous lithium battery was proposed. The battery was composed of a lithium metal anode, a lithium-stable non-aqu [...]

Open Access Original Research

Melting/Solidification Processes of PEG 1500 in Vertical and Horizontal Annular Enclosure

Received: 01 December 2020;  Published: 31 January 2021;  doi: 10.21926/jept.2101009

Abstract

In this paper, the primary aim is to look at the fundamental melting/solidification processes of polyethylene glycol 1500 (PEG 1500) for energy storage – insulation to prolong the cooling time of pipelines in unexpected shut-down conditions, prevent/minimize the wax deposition, and hydrate formation [...]

Open Access Original Research

Modeling of Ceria Reduction in a Solar Thermochemical Reactor via DEM Method

Received: 09 November 2020;  Published: 30 January 2021;  doi: 10.21926/jept.2101008

Abstract

Solar thermochemical reactor provides an attractive approach that utilizes the most common solar radiation as the thermal driving force to motivate the reaction between CO2 and metal oxides, which is also called metal oxide redox pair-based thermochemical cycles. The CeO

Open Access Review

Ni-Silica-based Catalysts for CH4 Reforming by CO2 with Enhanced Stability: Recent Designs and the Impacts of Ni Confinement, Promoters, and Core-Shell Structures

Received: 01 September 2020;  Published: 26 January 2021;  doi: 10.21926/jept.2101007

Abstract

CO2 reforming of CH4, also referred to as the Dry Reforming of Methane (DRM), is considered an excellent method to produce H2 and CO (syngas), which are known to be used for the production of higher alkanes and oxygenates. Despite [...]

Open Access Original Research

Quaternary Hydrides Pd1-y-zAgyCuzHx Embedded Atom Method Potentials for Hydrogen Energy Applications

Received: 10 November 2020;  Published: 25 January 2021;  doi: 10.21926/jept.2101006

Abstract

The Pd-H system has attracted extensive attention. Pd can absorb considerable amount of H at room temperature, this ability is reversible, so it is suitable for multiple energy applications. Pd-Ag alloys possess higher H permeability, solubility and narrower miscibility gap with better mechanical pr [...]

Open Access Technical Note

Spatio-Temporal Metocean Measurements for Offshore Wind Power

Received: 24 November 2020;  Published: 22 January 2021;  doi: 10.21926/jept.2101005

Abstract

This paper presents the case for the use of HF radar to provide wave, current and wind measurements and maps during the surveying, resource and impact assessment, construction, maintenance and performance assessment phases of an offshore fixed or floating wind farm or other marine renewable project. [...]

Open Access Project Report

SOFC Stack and System Modeling, Fault Diagnosis and Control

Received: 31 July 2020;  Published: 18 January 2021;  doi: 10.21926/jept.2101004

Abstract

This report is an account of research and development activities undertaken by the Centre for Process Systems Computations, Department of Chemical Engineering at Curtin University, Western Australia in the area of solid oxide fuel cells. The focus of work of the group included 1)effect of cell macro [...]

Open Access Original Research

Online State of Charge Prediction in Next Generation Vehicle Batteries Using Deep Recurrent Neural Networks and Continuous Model Size Control

Received: 31 July 2020;  Published: 12 January 2021;  doi: 10.21926/jept.2101003

Abstract

This investigation presents a data-driven Long-short Term Memory battery model for predicting State of Charge for lithium-ion batteries LiFePO4 for next-generation vehicle operations. Our modified algorithm builds and updates a model using multivariate inputs that include physical properties, voltag [...]

Open Access Editorial

Acknowlegement to Reviewers of Journal of Energy and Power Technology in 2020

Received: 07 January 2021;  Published: 07 January 2021;  doi: 10.21926/jept.2101002

Abstract

The editors of Journal of Energy and Power Technology would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2020. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial p [...]

Open Access Original Research

Assessment of Cu(In, Ga)Se2 Solar Cells Degradation due to Water Ingress Effect on The CdS Buffer Layer

Received: 28 October 2020;  Published: 06 January 2021;  doi: 10.21926/jept.2101001

Abstract

The effect of water ingress on the surface of the buffer layer of a Cu(In, Ga)Se2 (CIGS) solar cell was studied. Such degradation can occur either during the fabrication process, if it involves a chemical bath as is often the case for CdS, or while the modules are in the field [...]

Open Access Review

Solar Thermal Energy Stills for Desalination: A Review of Designs, Operational Parameters and Material Advances

Received: 28 September 2020;  Published: 29 December 2020;  doi: 10.21926/jept.2004018

Abstract

The demand for high-quality freshwater is increasing due to global population growth, intensifying agricultural practices and expanding industrial development. Additionally, many global regions have low levels of rainfall which makes them arid and incapable of supporting large human populations or a [...]

Open Access Research Article

Further Understanding of Uncertainties in the Impedance Spectrum of the Polymer Electrolyte Fuel Cell due to Inductive Effects and Oxygen Diffusion Time Constant

Received: 31 July 2020;  Published: 24 November 2020;  doi: 10.21926/jept.2004017

Abstract

In this study, uncertainties during the assessment of the electrochemical impedance spectrum of the polymer electrolyte fuel cell (PEFC) attributed to inductive artefacts at high frequencies and inductive loops at low frequencies as well as oxygen diffusion time constant are discussed. A validated i [...]

Open Access Review

Research Requirements to Move the Bar forward Using Aqueous Formate Salts as H2 Carriers for Energy Storage Applications

Received: 01 September 2020;  Published: 23 November 2020;  doi: 10.21926/jept.2004016

Abstract

In this perspective on hydrogen carriers, we focus on the needs for the development of robust active catalysts for the release of H2 from aqueous formate solutions, which are non-flammable, non-toxic, thermally stable, and readily available at large scales at reasonable cost. Formate salts can be st [...]

Open Access Research Article

Testing the Correlation between Prior Knowledge of - and Visualisation Guided WTPs for Reducing the Visual Impacts Visual from Offshore Wind Farms

Received: 28 April 2020;  Published: 12 August 2020;  doi: 10.21926/jept.2003015

Abstract

Visual external costs are significant elements in the cost-benefit analysis of wind farm locations. This has been demonstrated well in the literature. However, in the assessment of the visual costs, a large share of the earlier studies used no or only simplistic visualizations of the visual impacts [...]

Open Access Research Article

Grid Integration of a Residential PV-based Hybrid Renewable Energy System Using High-Frequency Multi-winding Transformer

Received: 13 June 2020;  Published: 05 August 2020;  doi: 10.21926/jept.2003014

Abstract

In this paper, a topology of a residential hybrid renewable energy system based on a high-frequency multi-winding transformer is introduced and analyzed. The system includes a PV and a wind-turbine as renewable energy sources, a battery as energy storage and their energies are integrated through a h [...]

Open Access Research Article

Sustainability Implications of Using Hydrogen as an Automotive Fuel in Western Australia

Received: 29 June 2020;  Published: 31 July 2020;  doi: 10.21926/jept.2003013

Abstract

Hydrogen is regarded as a potential solution to address future energy demands and environmental protection challenges. This study assesses the triple bottom line (TBL) sustainability performance of hydrogen as an automotive fuel for Western Australia (WA) using a life cycle approach. Hydrogen is con [...]

Open Access Research Article

Seismic Imaging of Convective Geothermal Flow Systems to Increase Well Productivity

Received: 03 December 2019;  Published: 29 July 2020;  doi: 10.21926/jept.2003012

Abstract

A core feature of convective geothermal resource production is wellbore energy flow Q ~ ρC x T x V. E.g., for wellbore fluid of volume heat capacity ρC ~ 4.3MJ/m3oC, temperature T ~ 230oC, and volumetric flow V ~ 50L/s, wellbore h [...]

Open Access Original Research

A Simplified Optimization Model for Sizing Proton-Exchange Membrane Fuel Cells

Received: 03 June 2020;  Published: 24 July 2020;  doi: 10.21926/jept.2003011

Abstract

The fluctuations in the cost of energy coupled with the gradual decrease in natural resources (i.e., oil, natural gas, coal) and the environmental issues caused by the extensive use of fossil fuels, demand the urgent need for the development of advanced and clean energy systems. The European Union h [...]

Open Access Original Research

Computational Micromechanics for the Optimization of Compression Strength of Unidirectional Carbon Fiber Composites for Use in Wind Turbine Blades

Received: 15 April 2020;  Published: 09 June 2020;  doi: 10.21926/jept.2002010

Abstract

As wind turbine blades grow longer, new design parameters gain additional importance such as blade weight, tip deflection and material cost. These parameters require designers to relook at carbon fiber as a potential design solution. However, the composite materials in wind turbine blades are subjec [...]

Journal of Energy and Power Technology welcomes the following types of articles: original research, review, communication, opinion, case report, comment, conference report, technical note, book review, etc. There is no restriction on the length of the papers, color figures, supplementary file types. More details please see Instructions for Authors.

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Special issue “Hydrogen Energy: Sustainable Production, Storage and Utilisation” was postponed until August 31, 2020.

Special issue “Offshore Wind Farms” was postponed until October 31, 2020.

Highly Accessed Articles

Original Research

by Xiang Li et al.

Journal of Energy and Power Technology 2021

Published: 09 May 2020

Original Research

by Megan Schutt and Harvey Seim

Journal of Energy and Power Technology 2021

Published: 30 April 2020

Original Research

by Manuel LEGREE et al.

Journal of Energy and Power Technology 2021

Published: 28 April 2020

Original Research

by Ryosuke Oochi et al.

Journal of Energy and Power Technology 2021

Published: 12 February 2020

Research Article

by Anna Karmazina and Brent S. Steel

Journal of Energy and Power Technology 2021

Published: 24 December 2019

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