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 not only original research and review articles, but also various other types of articles from experts in these fields, such as Communication, Opinion, Comment, Conference Report, Technical Note, Book Review, and more, 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


Publication Speed (median values for papers published in 2023): Submission to First Decision: 5.1 weeks; Submission to Acceptance: 11.6 weeks; Acceptance to Publication: 7 days (1-2 days of FREE language polishing included)

Current Issue: 2024  Archive: 2023 2022 2021 2020 2019

Special Issue

Photovoltaic Solar Systems and Solar Thermal Plants

Submission Deadline: December 31, 2020 (Closed) Submit Now

Guest Editor

Joaquin Alonso-Montesinos, PhD

Lecturer, Department of Chemistry and Physics, University Almeria, Almeria, Spain

Website | E-Mail

Research Interests: solar energy, climatology, atmospheric physics

About This Topic

Photovoltaic (PV) systems hold a key position in renewable energy field. The successful implementation of PV systems relies on several factors. Potential estimation, correct sizing, power electronics, energy conversion, grid stability, dynamic interactions, power quality, power system stability, public policy, investment, and incentives are all different parts of the puzzle for a smooth PV systems operation.
Solar thermal plants (STP) produce electricity using the heat obtained when concentrated solar radiation is converted into thermal energy. The useful heat thus obtained is then converted into electricity by means of a thermodynamic cycle (e.g., Brayton, Rankine, or Stirling). Estimates for global solar thermal potential indicate that it could more than provide for total global electricity needs. There are three primary solar thermal technologies based on three ways of concentrating solar energy: solar parabolic trough plants, solar tower power plants, and solar dish power plants. The mirrors used in these plants are normally constructed from glass, although other techniques are being explored. Power plants of these types use solar heat to heat a thermodynamic fluid such as water in order to drive a thermodynamic engine; for water this will be a steam turbine. Solar thermal power plants can have heat storage systems that allow them to generate electricity beyond daylight hours.
The main difference between a photovoltaic plant and a solar thermal plants is that in the PV panels the solar radiation is converted directly into electricity.
This Special Issue solicits papers that relate to the CSP plants, photovoltaic plant, solar energy, energy conversion, grid stability, electricity, thermal solar storage, performance ratio, and thermodynamic circles.


CSP plants; Photovoltaic plant; Solar energy; Energy conversion; Grid stability; Electricity; Thermal solar storage; Performance ratio; Thermodinamic circles

Manuscript Submission Information

Manuscripts should be submitted through the LIDSEN Submission System. Detailed information on manuscript preparation and submission is available in the Instructions for Authors. All submitted articles will be thoroughly refereed through a single-blind peer-review process and will be processed following the Editorial Process and Quality Control policy. Upon acceptance, the article will be immediately published in a regular issue of the journal and will be listed together on the special issue website, with a label that the article belongs to the Special Issue. LIDSEN distributes articles under the Creative Commons Attribution (CC BY 4.0) License in an open-access model. The authors own the copyright to the article, and the article can be free to access, distribute, and reuse provided that the original work is correctly cited.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). Research articles and review articles are highly invited. Authors are encouraged to send the tentative title and abstract of the planned paper to the Editorial Office ( for record. If you have any questions, please do not hesitate to contact the Editorial Office.

Welcome your submission!


Open Access Original Research

Adapted Time Slice Model of Pinch Analysis for Direct-Indirect Heat Recovery in Buildings

Received: 13 January 2022;  Published: 12 April 2022;  doi: 10.21926/jept.2202013


Heat integration techniques such as pinch analysis can play a significant role in saving energy in the design of buildings. The application of pinch analysis in this sector encounters difficulties due to the highly time-dependent behavior of energy streams such as waste heat and solar thermal collectors [...]
Open Access Research Article

Hot Water Preparation along with Combined Solar Thermochemical Energy Storage System: Experimental Validation and Performance Simulation

Received: 18 December 2020;  Published: 14 April 2021;  doi: 10.21926/jept.2102017


Hybrid solar thermal systems are regarded as a promising solution for delivering clean thermal energy for building sector, especially when combining them with different renewable energy sources. Solar energy production usually does not match the thermal energy demand, and the energy storage must be integrated. Thermochemical energy storage [...]
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


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 and chemically stable amorphous orto- [...]
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


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. Polyethylene glycol 1500 was selected [...]
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


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 CeO2/CeO2-δis widely used in the two-step redox proce [...]
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


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 and encapsulants degrade. To simulate the [...]
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


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 agriculture. Currently, large quantities of [...]
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


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 high-frequency transformer. In fact, the trans [...]