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Author Guidelines

Author Instructions

New User Registration Q/A

Due to the large number of spam user registrations, the Captcha for new user registration has been changed to a more challenging verification, and validation of email address is also required. New users need to click the activation link sent to the user's email address. However, some email address hosting providers (such as Yahoo) are not compatible with our SMTP. The webmaster will review new accounts daily and manually activate your account. At the same time, the author can send a registration request or directly submit the manuscript to the editor's email:

Open Access/Copyright - Licensing

All materials including articles published in the Trends in Renewable Energy will be Open-Access articles distributed under the terms and conditions of the Creative Commons Attribution License ( Authors hold the copyright and retain publishing rights. Copyright holders allow users to copy, use, distribute, transmit and display the work publicly and to make and distribute derivative works, in any digital medium for any responsible purpose, subject to proper attribution of authorship.


Trends in Renewable Energy is a peer-reviewed open access journal, and free of charge to authors. The aim of this journal is to provide a communication platform that is run exclusively by scientists working in the renewable energy field. Scope of the journal covers: Bioenergy, Biofuel, Biomass, Bioprocessing, Biorefinery, Biological waste treatment, Catalysis for energy generation, Energy conservation, Energy delivery, Energy resources, Energy storage, Energy transformation, Environmental impact, Feedstock utilization, Future energy development, Green chemistry, Green energy, Microbial products, Physico-chemical process for Biomass, Policy, Pollution, Renewable energy, Smart grid, Thermo-chemical processes for biomass, etc.

Article Processing Charge (APC) and Article Submission Charge

Publishing papers in the Trends in Renewable Energy is free of any charge to authors. Thus, the policy of waiving charges for authors from low-income countries is currently unavailable.

Types of Submissions

Review articles; mini-review articles; technical notes; short communications; and original research papers. If a review article is solicited by the editors, it will be labeled as the invited-review article. Mini-reviews are articles on current topics that are especially relevant to renewable energy. A technical note is a short article giving a brief description of a specific development, technique or procedure. Short communications are short-form research papers with less than 5 pages, which may either present an idea with theoretical background but has not yet completed the research needed for a complete paper or preliminary data. Original research papers have to show the novelty, the significance to the field of renewable energy, and/or future trends.

Before You Begin

Ethics in publishing

We are committed to maintaining high standards through a rigorous peer review at our Journal together with strict ethical policies. Any infringements of professional ethical codes, such as plagiarism, fraudulent use of data, or bogus claims of authorship, should be taken very seriously by the editors, with zero tolerance. Trends in Renewable Energy follows the Code of Conduct of the Committee on Publication Ethics (COPE), and follows the COPE Flowcharts for Resolving Cases of Suspected Misconduct. More information regarding Publication Ethics.

Authors shall consider following issues: 1. Authorship should be limited to those who have made a significant contribution to the conception, design, execution, or interpretation of the reported study. 2. Originality and plagiarism: The authors should ensure that they have written entirely original works, and if the authors have used the work and/or words of others, that this has been appropriately cited or quoted. 3. Data access and retention: Authors may be asked to provide the raw data in connection with a paper for editorial review, and should be prepared to provide public access to such data. 4. Data access and retention: Authors may be asked to provide the raw data in connection with a paper for editorial review, and should be prepared to provide public access to such data. 5. Multiple, redundant or concurrent publication: An author should not in general publish manuscripts describing essentially the same research in more than one journal or primary publication. 6. Acknowledgement of sources. 7. Disclosure and conflicts of interest. 8. Fundamental errors in published works: it is the author's obligation to promptly notify the journal editor or publisher and cooperate with the editor to retract or correct the paper. 9. Reporting standards: Authors should present an accurate account of the work performed as well as an objective discussion of its significance. 10. Hazards and human or animal subjects: Statements of compliance are required if used.

Declaration of interest

All authors are requested to disclose any actual or potential conflict of interest including any financial, personal or other relationships with other people or organizations within three years of beginning the submitted work that could inappropriately influence, or be perceived to influence, their work.

Submission declaration and verification

Submission of an article implies that the work described has not been published previously, that it is not under consideration for publication elsewhere, that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out, and that, if accepted, it will not be published elsewhere in the same form, in English or in any other language. To verify originality, your article may be checked by the originality detection service CrossCheck.  

Changes to authorship

Requests of changing authorship of accepted manuscripts must be sent to the Journal Manager from the corresponding author and must include the reason of changing and written confirmation from all authors.

Role of the funding source
You are requested to identify who provided financial support for the conduct of the research and/or preparation of the article and to briefly describe the role of the sponsor(s), if any, in study design; in the collection, analysis and interpretation of data; in the writing of the report; and in the decision to submit the article for publication. If the funding source(s) had no such involvement then this should be stated.


Only write your text in either American English or British English. If authors feel that their manuscript requires editing, you are encouraged to use an English Editing service elsewhere or use the Technical and English Editing service available from the publisher (


Submission to this journal proceeds totally online (


Please submit, with the manuscript, the names, present affiliation and current addresses and e-mail addresses of at least 4 potential referees. The editor retains the sole right to decide whether or not the suggested reviewers are used.



When preparing your manuscript, please use following article templates and Endnote style: TRE_ReviewArticle_Template, TRE_Article_Template, TRE_Editorial_Template, and TRE Endnote Style.

Formatting requirements

All manuscripts must contain the essential elements needed to convey your manuscript, for example Abstract, Keywords, Introduction, clearly defined sections for review articles, Materials and Methods, Results for research papers, Conclusions, Artwork and Tables with Captions. If your article includes the supplementary material, this should be included in your initial submission for peer review purposes. Please ensure the submitted manuscript has consecutive line numbering, and the figures and the tables are placed next to the relevant text in the manuscript, rather than at the bottom or the top of the file.

Cover letter

Cover letter is mandatory. It should include the following statements:  

1. That all the authors mutually agree for submitting their manuscript to this journal.

2. The manuscript is original work of authors.

3. The authors have obtained written permission for unrestricted use of any previously copyrighted material included in the article, if applicable (or N/A).

4. The novelty in results/ findings, or significance of results.

5. Disclosure of any actual or potential conflict of interest.


Highlights are optional for this journal. They consist of a short collection of 3-5 bullet points that convey the core findings of the article. Please include the 'Highlights' in the cover letter. The suggested length is 85 characters per bullet point.

Graphical abstract

A Graphical abstract is optional, but encouraged. It should summarize the contents of the article in a concise, pictorial form designed to capture the attention of a wide readership online. The editors may ask your permission to use your graphical abstract on the journal's cover page.

Article structure

Title: Concise and informative. Titles are often used in information-retrieval systems. Avoid abbreviations and formulae where possible.  

Author names and affiliations: Where the family name may be ambiguous (e.g., a double name), please indicate this clearly. Present the authors' affiliation addresses below the names. Indicate all affiliations with a lower-case superscript letter immediately after the author's name and in front of the appropriate address.

Corresponding author: Clearly indicate who will handle correspondence at all stages of refereeing and publication, also post-publication. The phone number should include country code.

Abstract: The abstract is required for an article. The abstract has a maximum length of 200 words. The abstract should state briefly the purpose of the research, the principal results and major conclusions

Keywords: Immediately after the abstract, provide a maximum of 6 keywords, avoiding general and plural terms and multiple concepts (for example, 'and', 'of'). Only abbreviations firmly established in the field may be eligible. These keywords will be used for indexing purposes.

Divide your article into clearly defined sections.

Introduction: State the objectives of the work and provide an adequate background, avoiding a detailed literature survey or a summary of the results.

Material and methods: Provide sufficient detail to allow the work to be reproduced. Methods already published should be indicated by a reference, and only relevant modifications should be described.

Results and Discussion: A combined Results and Discussion section is often appropriate. Results should be clear and concise. Discussion should explore the significance of the results of the work, not repeat them. Avoid extensive citations and discussion of published literature.

Conclusions: The main conclusions of the study may be presented in a short Conclusions section. The conclusion has a maximum length of 150 words

Glossary: Please supply, as a separate list, the definitions of field-specific terms used in your article.

Appendices: If there is more than one appendix, they should be identified as A, B, etc. Formulae and equations in appendices should be given separate numbering: Eq. (A.1), Eq. (A.2), etc.; in a subsequent appendix, Eq. (B.1) and so on. Similarly for tables and figures: Table A.1; Fig. A.1, etc.

Acknowledgements: Collate acknowledgements in a separate section at the end of the article before the references. List here funding agencies, and those individuals who provided help during the research.

Nomenclature and units: Follow internationally accepted rules and conventions: use the international system of units (SI). If other quantities are mentioned, give their equivalent in SI. You are urged to consult IUPAC: Nomenclature of Organic Chemistry: for further information.

Math formula: Present simple formula in the line of normal text where possible and use the solidus (/) instead of a horizontal line for small fractional terms, e.g., X/Y. For complex formulae, you may use MS Equation, or any similar software.


Make sure you use uniform lettering and sizing of your original artwork.

Preferred fonts: Arial (or Helvetica), Times New Roman (or Times), Symbol, Courier.

Number the illustrations according to their sequence in the text.

Use a logical naming convention for your artwork files.

Color artwork option is available on the Web only.

Figure captions: Ensure that each illustration has a caption. A caption should comprise a brief title (not on the figure itself) and a description of the illustration. Keep text in the illustrations themselves to a minimum but explain all symbols and abbreviations used.


Number tables consecutively in accordance with their appearance in the text. Place footnotes to tables below the table body and indicate them with superscript lowercase letters. Be sparing in the use of tables and ensure that the data presented in tables do not duplicate results described elsewhere in the article.


Reference style

Please use provided TRE Endnote Style. Where applicable, author(s) name(s), journal title/book, title, chapter title/article title, year of publication, volume number/book chapter and the pagination must be present. Use of DOI is required if available.

Text: Indicate references by numbers in brackets in line with the text. Example: [1-4], [5], [6, 7]. References must be listed in the order in which they are cited in the article.

Reference Examples:

[1] Schwartz, M. T., and Billoski, T. V. (1990). "Greenhouse hypothesis: effect on dinosaur extinction." Extinction, B. T. Jones, and N. V. Lovecraft, eds., Barnes and Ellis, New York, 175-189. 

[2] Blanca, G., Duncan, G., Agarkova, I., Borodovsky, M., Gurnon, J., Kuo, A., Lindquist, E., Lucas, S., Pangilinan, J., Polle, J., et al. (2010). The Chlorella variabilis NC64A genome reveals adaptation to photosymbiosis, coevolution with viruses, and cryptic sex, Plant Cell 22(9), 2943-2955. DOI: 10.1105/tpc.110.076406

[3] García, J., Green, B. F., Lundquist, T., Mujeriego, R., Hernández-Marin, M., and Oswald, W. J. (2006). Long term diurnal variations in contaminant removal in high rate ponds treating urban wastewater, Bioresource Technology 97(14), 1709-1715. DOI: 10.1016/j.biortech.2005.07.019

[4] Billoski, T. V. (1992). Introduction to Paleontology, Institutional Press, New York.

[5] LaMotte (2011). Lamotte Smart 3 colorimeter manual, [Accessed on July 17, 2014]

[6] Jarvis, E. E. (2008). “Aquatic species program (ASP): Lessons learned,” [Accessed on July 17, 2014]

Journal abbreviations source

Journal names should be abbreviated according to the List of Title Word Abbreviations:

Submission checklist

The following list will be useful during the final checking of an article prior to sending it to the journal for review.

  1. Have you given the mandatory declarations in the covering letter and stated the novelty of your work?
  2. Are highlights included in the cover letter?
  3. Suggesting 4 reviewer(s) is required for Submission.
  4. Have you performed the Spelling &Grammar check?
  5. Have you checked that the abstract is maximum 200 words and conclusions maximum 150 words?
  6. Have you ensured that the page length is not more than allowed (40 for review papers, 15 for short communications, and 35 for original articles)?
  7. Have you ensured that the references are not more than allowed (75 for review papers, 20 for short communications, and 35 for original articles)?
  8. Have you ensured that the number of figures and tables are not more than six each?
  9. The submission file uses the template provided by the publisher, and it is in OpenOffice, Microsoft Word, RTF, or WordPerfect document file format.
  10. Where available, URLs for the references have been provided. The text employs italics, rather than underlining (except with URL addresses); and all illustrations, figures, and tables are placed within the text at the appropriate points, rather than at the end.
  11. The text adheres to the stylistic and bibliographic requirements outlined in the Author Guidelines, which is found in About the Journal.

Review process

All scholarly review articles and research articles subject to a peer review process managed by the editors, with oversight by the Editorial Board within 2 months.

Initial Review: The Editor first evaluates all manuscripts. A manuscript can be rejected in this stage because of insufficient originality, serious scientific flaws, or because the work is considered outside the aims and scope of the journal. Manuscripts passing the first evaluation will be evaluated on technical aspects such as compliance to the format of this journal, quality of grammar or English language. Revision can be requested after this first evaluation.

Peer Review: Those that meet the minimum criteria are passed on to experts for peer-review. The editor selects and invites two reviewers based on their expertise in the particular field. A manuscript is reviewed by at least two reviewers. The reviewers are asked to complete their reviews within 21 days.  Reviewers evaluate the manuscript, and comment:

  • the overarching aims of the manuscript and its key take-home points
  • the significance of the work and its relevance
  • the appropriateness of the title, abstract, and length of the paper
  • the ways to enhance the quality of the paper, with attention paid to conceptual underpinnings, methodological sophistication, data analytic approach, interpretation of the findings, and implications
  • the utility of the tables, figures, and supplemental materials
  • the overall clarity, lucidity, and coherence of the written presentation

Reviewers advise the editor, who is responsible for the final decision to accept or reject the article. Any Editor's decision is final. The decision can be: accept as is, minor revision, major revision, or reject.

A revised manuscript should be submitted within 4-6 weeks of the decision. It will usually be returned to the original reviewers for re-evaluation.


Online proof correction

Corresponding authors will receive an e-mail with proofs in WORD. It will allow you to directly type the corrections, eliminating the potential introduction of errors. Please submit all of your corrections within 48 hours. It is important to ensure that all corrections are sent back to us in one communication. Please check carefully before replying, as inclusion of any subsequent corrections cannot be guaranteed. Proofreading is solely your responsibility.

Use of the Digital Object Identifier

The Digital Object Identifier (DOI) may be used to cite and link to electronic documents. The DOI consists of a unique alpha-numeric character string which is assigned to a document by the publisher upon the initial electronic publication. The assigned DOI never changes. Therefore, it is an ideal medium for citing a document, particularly 'Articles in press' because they have not yet received their full bibliographic information.


You can track your submitted article at You are welcome to contact us via


Submission Preparation Checklist

As part of the submission process, authors are required to check off their submission's compliance with all of the following items, and submissions may be returned to authors that do not adhere to these guidelines.


Copyright Notice

Trends in Renewable Energy is an international peer-reviewed open access journal, adopting Creative Commons Attribution License (CC-BY). The author(s) hold the copyright and retain publishing rights without restrictions. Copyright holders allow users to distribute and copy the article, to create extracts, abstracts, and other revised versions, adaptations or derivative works of or from an article (such as a translation), to include in a collective work (such as an anthology), to text or data mine the article, even for commercial purposes, as long as they credit the author(s), do not represent the author as endorsing their adaptation of the article, and do not modify the article in such a way as to damage the author's honor or reputation.


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