Journal profile · Energy-Renewable Energy, Sustainability and the Environment
Cleaner Energy Systems
ISSN 2772-7831 · Elsevier · United Kingdom
Cleaner Energy Systems: impact factor 5.9 (journal website); fully open access; APC about USD 1,550; review about 138 days (submission to acceptance, publisher); 61 articles in 2025; indexed in ESCI and Scopus.
Scope
Aims, scope and focus
Cleaner Energy Systems is published by Elsevier. By OpenAlex counts of its recent articles, its largest topics are Energy and Environment Impacts, Hybrid Renewable Energy Systems and Integrated Energy Systems Optimization, together about 28.1% of its articles. (generated from OpenAlex topic counts and CAS ranking data)
Cleaner Energy Systems - a platform to debate issues of delivering sufficient energy in a clean way. In this light, CLEANER energy is a significant issue as, for instance, renewable energy can be clean but can also contribute to the increased environmental footprints at various levels. Instead of focusing on a specific technology or the origin of the supplied energy, the proposed journal focuses on the issues of minimising the footprints of energy technologies over the entire life cycle - from sourcing to use and counteracting to the effects of released emissions.Cleaner Energy Systems An international, transdisciplinary journal focusing on cleaner ways of sourcing, transforming, transporting, delivering and using energy. Embedded in the scope is also the concept of Circular Economy - in terms of energy efficiency of systems with circular material flows as well as the energy recovery and reuse in industrial and processes within supply chains, urban and regional process networks. The Cleaner Energy Systems journal serves as a platform for addressing and discussing theoretical and practical issues concerning energy systems related to the reduction and elimination of negative impacts on the environment and human health, as well as the potential increase of natural and human capital.The scope includes (but is not limited to) the following topics, where the cleaner and sustainability dimensions are explicitly treated:Sustainable energy use and consumptionEfficient and clean energy transportation and conversionEnergy efficiency of industrial and business processesNexuses of energy and other resources and their potential use as synergy mechanismsIntegration of renewable energy sources into product and energy supply systemsEnergy storage enabling renewables and environmental footprint minimisationReduction of environmental and health footprints of transportation, product or energy supply networksEnergy-related metrics for sustainability performance and their relation to other sustainability indicatorsSustainable practices and footprint minimisation in upstream operations and primary energy sourcingEnergy- and footprint-aware regional developmentCleaner energy systems promoting policiesPromoting cleaner energy systemsWe encourage those interested in organizing a special issue or a virtual special issue within the scope of the journal to fill out this form and contact the editors-in-chief for more information.
From the journal's Aims & Scope
Research area (LetPub): Energy-Renewable Energy, Sustainability and the Environment
Editor-in-chief Giorgio BesagniPublisher website
Editorial board by country: 5 in mainland China (about 25%); most named Mainland China 5, Italy 4, Brazil 3, United States 2, United Kingdom 1 (20 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- Energy and Environment ImpactsEnvironmental Science11.2%
- Hybrid Renewable Energy SystemsEnergy10.1%
- Integrated Energy Systems OptimizationEngineering6.9%
- Electric Vehicles and InfrastructureEngineering6%
- Advanced Battery Technologies ResearchEngineering4.9%
- Photovoltaic System Optimization TechniquesEnergy4.7%
- Environmental Impact and SustainabilityEnvironmental Science4.5%
- Microgrid Control and OptimizationEngineering4.3%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Not covered
Not covered by this edition.
CAS Xinrui Journal Ranking (March 2026)Not covered
Not covered by this edition.
CAS Journal Ranking, previous upgraded edition (December 2023)Not covered
Not covered by this edition.
Database indexing
ESCIScopusDOAJLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor (publisher)
- 5.9Publisher website ·
- CiteScore 2026-06
- 10.7LetPub ·
- CiteScore (publisher)
- 10.7Publisher website ·
- SJR 2026-06
- 1.26LetPub ·
- SNIP 2026-06
- 1.37LetPub ·
- h-index
- 28OpenAlex ·
- i10-index
- 104OpenAlex ·
- 2-year mean citedness
- 6.29OpenAlex ·
- Self-citation rate
- 3.4%LetPub ·
- Share of gold OA articles
- 100%LetPub ·
Volume
- Articles per year
- 54LetPub ·
Articles by year OpenAlex count · 278 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 56 | 56 | 18 |
| 2025 | 61 | 61 | 333 |
| 2024 | 64 | 64 | 787 |
| 2023 | 52 | 52 | 839 |
| 2022 | 45 | 45 | 1,292 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
Publisher-reported review time from the journal's website
138 dayssubmission to acceptance · community reports about 17 weeks
The publisher's own definition applies; dates from this journal's articles in the last 24 months are not available yet, so the publisher's figure is used.
Figures by source
- Average review time (community reports)
- about 17 weeksLetPub ·
- Submission to first decision
- 11 daysPublisher website ·
- First decision after review
- 56 daysPublisher website ·
- Submission to acceptance
- 138 daysPublisher website ·
- Acceptance to publication
- 3 daysPublisher website ·
- Submission to publication (journal-reported)
- about 22 weeksDOAJ ·
- Peer review
- Single anonymous peer reviewDOAJ
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Fully open accessDOAJ
Every article is open access; authors usually pay an article processing charge (APC).
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| DOAJ | USD 1,550 | Yes | CC BY, CC BY-NC, CC BY-NC-ND | |
| OpenAlex | USD 1,270 / EUR 1,190 / GBP 1,020 / JPY 157,520 | — | — | |
| LetPub | USD 1,200 | Yes | — | |
| Publisher website | USD 1,940 | — | — |
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
What to prepare2 items from the author guidelines
- Keywords
- 1–7
- Highlights
- Optional
Article types accepted8, with length limits
- hypothesisThe following types of contribution are published in Cleaner Energy Systems: Original article: Standard research papers of 6000-8000 words in length, with table…Length not stated
- letterThe following types of contribution are published in Cleaner Energy Systems: Original article: Standard research papers of 6000-8000 words in length, with table…Length not stated
- letters to the editorThe following types of contribution are published in Cleaner Energy Systems: Original article: Standard research papers of 6000-8000 words in length, with table…Length not stated
- literature reviewThe following types of contribution are published in Cleaner Energy Systems: Original article: Standard research papers of 6000-8000 words in length, with table…Length not stated
- original articleThe following types of contribution are published in Cleaner Energy Systems: Original article: Standard research papers of 6000-8000 words in length, with table…main text ≤ 8,000 words
- reviewThe following types of contribution are published in Cleaner Energy Systems: Original article: Standard research papers of 6000-8000 words in length, with table…Length not stated
- review articleThe following types of contribution are published in Cleaner Energy Systems: Original article: Standard research papers of 6000-8000 words in length, with table…main text ≤ 12,000 words
- standard research paperThe following types of contribution are published in Cleaner Energy Systems: Original article: Standard research papers of 6000-8000 words in length, with table…Length not stated
Policy excerpts from the journal's websiteAI use, Authorship, Conflicts of interest, License & copyright, Open access, Peer review, Preprints
- AI use Declaration of generative AI use
Authors must declare the use of generative AI tools in the manuscript preparation process upon submission of the paper.Generative AI and AI-assisted technologies (“AI tools”) have been rapidly adopted in research and scholarly publishing, offering significant benefits while requiring clear standards for responsible and transparent use.Authors preparing a manuscript for this journal may use AI tool…
Source ↗Publisher website ·- Authorship Group authorship
Group authorship refers to the attribution of an article to a defined and named group of authors whose members have contributed to the work. Examples include research consortia, clinical trial groups, collaborative networks, task forces or working groups, expert panels or consensus groups, and participatory research groups. Group authorship must be declared on the title page at submission. When av…
Source ↗Publisher website ·- Conflicts of interest Declaration of competing interests
All authors must disclose any financial and personal relationships with other people or organizations that could inappropriately influence or bias their work. Examples of potential competing interests include:EmploymentConsultanciesStock ownershipHonorariaPaid expert testimonyPatent applications or registrationsGrants or any other fundingAffiliation with the journal as an Editor or Advisory Board …
Source ↗Publisher website ·- License & copyright License options
Authors will be offered open access user license options which will determine how you, and third parties, can reuse your open access article. We advise that you review these options and any funding body license requirements before selecting a license option.
Source ↗Publisher website ·- Open access Open access
We refer you to our open access information page to learn about open access options for this journal.
Source ↗Publisher website ·- Peer review Peer review
Single anonymized review process Model summary
This journal follows a single anonymized review process. Your submission will initially be assessed by our editors. If your submission is deemed suitable, it will typically be sent to be reviewed by a minimum of two reviewers for an independent expert assessment of the scientific quality. The decision as to whether your article is accepted or rejected for publication will be made by our editors.Re…
Source ↗Publisher website ·- Preprints Preprints
Preprint sharing allowed Model summary
Preprint sharingAuthors may share preprints in line with Elsevier's article sharing policy. Sharing preprints, such as on a preprint server, will not count as prior publication.We advise you to read our policy on multiple, redundant or concurrent publication.
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Elsevier
- Country or region
- United Kingdom
- Language
- English
- ISSN
- 2772-7831
- Official links
- Journal homepage ↗LetPub
- Submission system ↗Publisher website
- Author guidelines ↗DOAJ
- Aims & Scope ↗LetPub
- Special issues ↗Publisher website
- APC information ↗DOAJ
- Fee waivers ↗DOAJ
- Open access statement ↗DOAJ
- License & copyright ↗DOAJ
- Peer review process ↗DOAJ
- Editorial board ↗LetPub
- Plagiarism policy ↗DOAJ
FAQ
Frequently asked questions about Cleaner Energy Systems
What is the impact factor of Cleaner Energy Systems?
The journal's website gives an impact factor of 5.9; this is the journal's own figure, as LetPub lists none for it; CiteScore 10.7, h-index 28.
How long does peer review take at Cleaner Energy Systems?
The publisher reports about 138 days (submission to acceptance); authors report an average review time of about 17 weeks. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
What are the manuscript requirements of Cleaner Energy Systems?
According to the journal's author guidelines: Keywords: 1–7; Highlights: Optional. A model extracted these from the author guidelines and each was checked against the text; check the latest version on the journal's website before submitting.
Where are the editorial board members of Cleaner Energy Systems based?
Of the 20 board members whose country the journal's board page names, 5 (about 25%) are in mainland China; the countries named most often are Mainland China (5), Italy (4) and Brazil (3). Counted from the institutions listed on the board page; for reference only.
Which databases index Cleaner Energy Systems?
According to LetPub and DOAJ records, Cleaner Energy Systems is indexed in ESCI, Scopus and DOAJ.
Is Cleaner Energy Systems open access, and what is the APC?
Cleaner Energy Systems is a fully open-access journal. APC about USD 1,550.
Sources and updates
The facts on this page come from LetPub, Publisher website, OpenAlex, DOAJ; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-25). Last updated: .