Journal profile · Energy-Renewable Energy, Sustainability and the Environment
Green Energy & Environment
ISSN 2096-2797 · eISSN 2468-0257 · KeAi Publishing Communications Ltd. · PEOPLES R CHINA
Green Energy & Environment: CAS Zone 1 · Engineering (2025 upgraded edition, Top journal); impact factor 16.38; fully open access; APC charged, amount not published; review about 100 days (submission to acceptance, publisher); 154 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
Green Energy & Environment is published by KeAi Publishing Communications Ltd. and is in Zone 1 of Engineering in the CAS Journal Ranking (2025 upgraded edition, Top journal). By OpenAlex counts of its recent articles, its largest topics are Advanced Photocatalysis Techniques, Electrocatalysts for Energy Conversion and Advancements in Battery Materials, together about 25.8% of its articles. Its main subfields are Electrical and Electronic Engineering. (generated from OpenAlex topic counts and CAS ranking data)
Green Energy & Environment (GEE) is a peer-reviewed, international, interdisciplinary journal for the publication of relevant and qualified research related to all aspects of green energy and the environment, such as biofuel and bioenergy, energy storage and networks, catalysis for sustainable processes, and materials for energy and the environment. The scope of GEE is very broad, and GEE particularly welcomes original, novel fundamental, and engineering research. GEE also aims to provide a platform for the discussion, summary, review, and preview of green energy and its impact on the eco-environment.GEE publishes articles that focus on, but are not limited to, the following areas:Biofuel and bioenergyCatalysis for sustainable processesClean processing and utilization of fossil resourcesClimate change and pollution controlCO2 capture, storage, and utilizationEnergy storage and networkEnvironmental impacts of energy technologiesFundamental and practical applications for energy and environmentGreen solvents for energy conversionHydrogen energy and fuel cellsMaterials for energy and environmentSolar energy and photovoltaicsGEE is founded by the Institute of Process Engineering, Chinese Academy of Sciences (IPE, CAS) and Science PressEditorial Board
From the journal's Aims & Scope
Research area (LetPub): Energy-Renewable Energy, Sustainability and the Environment
Main research topics OpenAlex counts of recent articles; shares are approximate
- Advanced Photocatalysis TechniquesEnergy8.9%
- Electrocatalysts for Energy ConversionEnergy8.6%
- Advancements in Battery MaterialsEngineering8.2%
- Advanced battery technologies researchEngineering7.5%
- Advanced Battery Materials and TechnologiesEngineering7.2%
- Supercapacitor Materials and FabricationMaterials Science5.8%
- Catalytic Processes in Materials ScienceMaterials Science5.8%
- Catalysis for Biomass ConversionEngineering5.2%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Engineering Zone 1
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 1 |
| Minor | Chemistry, Physical | Zone 1 |
| Minor | Energy & Fuels | Zone 1 |
| Minor | Engineering, Chemical | Zone 1 |
| Minor | Green & Sustainable Science & Technology | Zone 1 |
Top journal: yesReview journal: no
CAS Xinrui Journal Ranking (March 2026)Engineering Zone 1
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 1 |
| Minor | Chemistry, Physical | Zone 2 |
| Minor | Green & Sustainable Science & Technology | Zone 2 |
| Minor | Energy & Fuels | Zone 2 |
| Minor | Engineering, Chemical | Zone 1 |
Top journal: yesReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Engineering Zone 1
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 1 |
| Minor | Engineering, Chemical | Zone 1 |
| Minor | Chemistry, Physical | Zone 2 |
| Minor | Energy & Fuels | Zone 2 |
| Minor | Green & Sustainable Science & Technology | Zone 2 |
Top journal: noReview journal: no
Database indexing
SCIEScopusDOAJLetPub
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
- 16.38LetPub ·
- Impact factor (publisher)
- 16.7Publisher website ·
- CiteScore 2026-06
- 26.5LetPub ·
- CiteScore (publisher)
- 26.5Publisher website ·
- SJR 2026-06
- 2.68LetPub ·
- SNIP 2026-06
- 2.15LetPub ·
- h-index
- 95OpenAlex ·
- i10-index
- 780OpenAlex ·
- 2-year mean citedness
- 8.97OpenAlex ·
- Self-citation rate
- 6.6%LetPub ·
- Share of gold OA articles
- 99.07%LetPub ·
Volume
- Articles per year
- 158LetPub ·
Articles by year OpenAlex count · 1,213 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 157 | 157 | 111 |
| 2025 | 154 | 154 | 1,220 |
| 2024 | 146 | 146 | 2,768 |
| 2023 | 97 | 97 | 3,000 |
| 2022 | 147 | 147 | 7,870 |
| 2021 | 123 | 123 | 4,833 |
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
100 dayssubmission to acceptance · community reports about 15 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 15 weeksLetPub ·
- Submission to first decision
- 12 daysPublisher website ·
- First decision after review
- 41 daysPublisher website ·
- Submission to acceptance
- 100 daysPublisher website ·
- Acceptance to publication
- 4 daysPublisher website ·
- Peer review
- Anonymous peer reviewLetPub
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 accessOpenAlex
Every article is open access; authors usually pay an article processing charge (APC).
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| OpenAlex | USD 0 | — | — | |
| LetPub | No APC | No | — | |
| Publisher website | Yes, amount not published | — | — |
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 prepare1 items from the author guidelines
- Reference style
- Numbered, in order of citation
Article types accepted7, with length limits
- commentaryContributions falling into the following categories will be considered for publication: Review article (> 10000 words), Short review (~ 5000 words), Feature art…main text ≤ 1,000 words
- feature articleFeature article (> 8000 words)Length not stated
- research paperContributions falling into the following categories will be considered for publication: Review article (> 10000 words), Short review (~ 5000 words), Feature art…main text ≤ 3,000 words
- review articleContributions falling into the following categories will be considered for publication: Review article (> 10000 words), Short review (~ 5000 words), Feature art…main text ≤ 10,000 words
- short communicationContributions falling into the following categories will be considered for publication: Review article (> 10000 words), Short review (~ 5000 words), Feature art…Length not stated
- short reviewContributions falling into the following categories will be considered for publication: Review article (> 10000 words), Short review (~ 5000 words), Feature art…main text ≤ 5,000 words
- viewpointContributions falling into the following categories will be considered for publication: Review article (> 10000 words), Short review (~ 5000 words), Feature art…main text ≤ 3,000 words
Policy excerpts from the journal's websiteAI use, Authorship, Conflicts of interest, Data availability, Publication ethics, License & copyright, Open access, Peer review, Preprints
- AI use Declaration of generative AI in scientific writing
Generative AI use in writing should be declared Model summary
Authors are encouraged to declare the use of generative AI in scientific writing upon submission of the paper. The following guidance refers only to the writing process, and not to the use of AI tools to analyse and draw insights from data as part of the research process:Generative AI and AI-assisted technologies should only be used in the writing process to improve the readability and language of…
Source ↗Publisher website ·- Authorship Author contributions
For transparency, we require corresponding authors to provide co-author contributions to the manuscript using the relevant CRediT roles. The CRediT taxonomy includes 14 different roles describing each contributor's specific contribution to the scholarly output. The roles are: Conceptualization; Data curation; Formal analysis; Funding acquisition; Investigation; Methodology; Project administration;…
Source ↗Publisher website ·- Conflicts of interest Conflict of interest
Conflict of interest disclosure required Model summary
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. See also https://www.elsevier.com/conflictsofinterest.
Source ↗Publisher website ·- Data availability
Mendeley Data supported for research data deposit Model summary
This journal supports Mendeley Data, enabling you to deposit any research data (including raw and processed data, video, code, software, algorithms, protocols, and methods) associated with your manuscript in a free-to-use, open access repository.
Source ↗Publisher website ·- Publication ethics
Originality check via CrossCheck Model summary
To verify originality, your article may be checked by the originality detection service CrossCheck.
Source ↗Publisher website ·- License & copyright Copyright
Journal Publishing Agreement required upon acceptance Model summary
Upon acceptance of an article, authors will be asked to complete a 'Journal Publishing Agreement'. Acceptance of the agreement will ensure the widest possible dissemination of information. An e-mail will be sent to the corresponding author confirming receipt of the manuscript together with a 'Journal Publishing Agreement' form or a link to the online version of this agreement.If excerpts from othe…
Source ↗Publisher website ·- Open access Open access
Open access journal Model summary
This is an open access journal: all articles will be immediately and permanently free for everyone to read and download. To provide open access, this journal has an open access fee (also known as an article publishing charge APC) which needs to be paid by the authors or on their behalf e.g. by their research funder or institution. The journal is currently free to the authors and readers. Permitted…
Source ↗Publisher website ·- Peer review Peer Review
Single anonymized review process Model summary
This journal operates a single anonymized review process. All contributions will be initially assessed by the editor for suitability for the journal. Papers deemed suitable are then typically sent to a minimum of two independent expert reviewers to assess the scientific quality of the paper. The Editor is responsible for the final decision regarding acceptance or rejection of articles. The Editor'…
Source ↗Publisher website ·- Preprints Preprint posting on SSRN
Free preprint posting service on SSRN Model summary
In support of Open Science, this journal offers its authors a free preprint posting service. Preprints provide early registration and dissemination of your research, which facilitates early citations and collaboration.<P>During submission to Editorial Manager, you can choose to release your manuscript publicly as a preprint on the preprint server SSRN once it enters peer-review with the journal. Y…
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
- KeAi Publishing Communications Ltd.
- Country or region
- PEOPLES R CHINA
- Language
- English
- ISSN
- 2096-2797
- Electronic ISSN
- 2468-0257
- Official links
- Journal homepage ↗LetPub
- Submission system ↗Publisher website
- Author guidelines ↗LetPub
- Aims & Scope ↗LetPub
- Special issues ↗Publisher website
- Peer review process ↗LetPub
- Editorial board ↗LetPub
FAQ
Frequently asked questions about Green Energy & Environment
What CAS zone is Green Energy & Environment in?
In the 2025 upgraded edition of the CAS Journal Ranking, Green Energy & Environment is in Zone 1 of Engineering, and in Zone 1 of the minor category Chemistry, Physical / Energy & Fuels / Engineering, Chemical / Green & Sustainable Science & Technology; it is a Top journal. In the 2026 Xinrui edition it is in Zone 1 of Engineering. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of Green Energy & Environment?
The latest impact factor listed by LetPub is 16.38; CiteScore 26.5, h-index 95.
How long does peer review take at Green Energy & Environment?
The publisher reports about 100 days (submission to acceptance); authors report an average review time of about 15 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.
Which databases index Green Energy & Environment?
According to LetPub and DOAJ records, Green Energy & Environment is indexed in SCIE, Scopus and DOAJ.
Is Green Energy & Environment open access, and what is the APC?
Green Energy & Environment is a fully open-access journal. APC charged, amount not published.
Sources and updates
The facts on this page come from LetPub, Publisher website, OpenAlex; 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: .