by Daming Zhang

Received: 06 December 2022;  Published: 17 February 2023;  doi: 10.21926/jept.2301009

To increase power level in an autonomous microgrid, higher voltage is necessary. In this paper, detailed Matlab/Simulink modeling of a microgrid operated at medium-voltage level and at constant frequency has been conducted. Modified boost converter and medium-frequency transformer isolated DC/DC converter are adopted for both solar energy and wind energy harnessing in order for them to be connected with the microgrid. This paper further adopted a differential evolution (DE)-based method to carry out load flow analy [...]

by Bertrand Cassoret  and François Balavoine

Received: 20 September 2024;  Published: 30 April 2025;  doi: 10.21926/jept.2502008

This study focuses on the environmental impacts of the electricity production scenarios proposed for France for 2060 by the French electricity network manager, RTE. They consider an increasing electricity consumption and a production without fossil fuels, essentially based on wind, photovoltaic, hydraulic, and, for some, nuclear power. The total power to install is significantly higher than the current one; it is higher in the scenarios that rely more on photovoltaic and less on nuclear. Renewable energies require [...]

by Nanimpo Kansongue  , Stephen Vertigans  and James Njuguna

Received: 22 December 2024;  Published: 13 October 2025;  doi: 10.21926/jept.2504014

This work investigates the potential of renewable energy to significantly reduce Togo’s energy deficit, offering a critical analysis of the country’s current energy landscape. It evaluates the availability and viability of renewable energy sources—particularly solar and small-scale hydropower—and examines the mismatch between energy supply and growing demand. The study highlights Togo’s heavy reliance on biomass and energy imports from neighbouring countries such as Ghana, Côte d’Ivoire, and Nigeria, which exacerba [...]

by Journal of Energy and Power Technology Editorial Office

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

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 process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers receive a voucher entitling them to a discount on their next LIDSEN publication and can download a cer [...]

by Ashraf Zaghwan  , Yousef Amer  , Mahmoud Efatmaneshnik  and Nagi Abdussamie

Received: 24 July 2023;  Published: 06 February 2024;  doi: 10.21926/jept.2401004

The economic impact of energy loss stemming from end-user electricity consumption is a significant concern, with historical trends revealing escalating costs. Effectively managing both peak and off-peak demands remains a formidable challenge due to the unpredictable nature of consumer behaviors, leading to energy wastage. This study delves into the nexus of demand uncertainty, financial repercussions, and potential strategies to mitigate energy losses in the evolving landscape of electricity consumption.that causes [...]

by Carlos Armenta-Déu

Received: 21 April 2023;  Published: 04 July 2023;  doi: 10.21926/jept.2303022

This paper studies and characterizes a solar collector with spherical geometry to produce hot water for sanitary and domestic applications and other facilities. The new geometry enlarges the solar collector surface and allows full sun tracking during the day without needing a solar tracking system. Although this geometry has been in use for some time, its market penetration is low due to the lack of perfect knowledge of solar collector behavior and the benefits compared with conventional solar collectors. The studi [...]

by Fatemeh Mollaamin

Received: 15 August 2024;  Published: 07 November 2024;  doi: 10.21926/jept.2404019

A comprehensive investigation on hydrogen grabbing by SiO-GeO was carried out, including DFT computations at the CAM-B3LYP-D3/6-311+G (d,p) level of theory. The data shows that if silicon elements are replaced by germanium, the H-grabbing energy will be ameliorated. Electromagnetic and thermodynamic properties of SiO, GeO, and SiO-GeO nanoclusters have been evaluated. The hypothesis of the hydrogen adsorption phenomenon was confirmed by density distributions of PDOS and LOL for hydrated nanoclusters of H-SiO, H-GeO [...]

by Antonio José Steidle Neto  and Daniela de Carvalho Lopes

Received: 28 April 2024;  Published: 26 August 2024;  doi: 10.21926/jept.2403016

Minas Gerais is the leading milk-producing state in Brazil, and many dairy activities are supplied with electricity by the cable aerial network of the electrical energy state company. Given that the Brazilian energy matrix relies primarily on hydroelectric power, studies on the potential of other renewable energy sources in the context of dairy farms are innovative. Additionally, frequent disturbances and interruptions have motivated the installation of solar energy systems on dairy farms. However, the scarcity of [...]

by Anudeep Katepalli  , Thiraj Mohankumar  , Meher Saketh Gandharapu  , Sagar Shrestha  , Anton Harfmann  , Mathias Bonmarin  , John Krupczak  and Donglu Shi

Received: 06 July 2025;  Published: 11 September 2025;  doi: 10.21926/jept.2503013

Indoor environments offer a unique opportunity for photon recycling using LED-based illumination, particularly to address energy limitations of solar photovoltaic (PV) systems during nighttime or in low-light conditions. This study presents an optical and electrical performance evaluation of silicon-based photovoltaic (SPV) panels operating under controlled indoor LED lighting. Despite the low irradiance (~1.4 mW/cm2), significant power output was achieved through engineered panel configurations and optimized light [...]

by Mohammad Forhad  , Mehedi Hasan Shakil  , Md.Rashidul Islam  , Muhammed Y. Worku  and Md Shafiullah

Received: 20 June 2023;  Published: 30 January 2024;  doi: 10.21926/jept.2401003

The prolonged presence of low-frequency oscillation (LFO) in power system networks (PSN) poses a significant threat to their stability. Hence, engineers and researchers have continuously developed effective strategies to mitigate the issue and enhance the stability of the PSN. This article proposes a new approach using the African Vultures Optimization Algorithm (AVOA) to design robust Power System Stabilizers (PSS) and enhance the LFO damping in multi-machine networks. The damping ratio-based objective function mi [...]