Journal profile · ENERGY & FUELS
International Energy Journal
ISSN 1513-718X · Regional Energy Resources Information Center
International Energy Journal: CAS Zone 4 · Engineering (2025 upgraded edition); fully open access; 64 articles in 2025; indexed in ESCI and Scopus.
Scope
Aims, scope and focus
International Energy Journal is published by Regional Energy Resources Information Center and is in Zone 4 of Engineering in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Energy and Environment Impacts, Solar Thermal and Photovoltaic Systems and Thermochemical Biomass Conversion Processes, together about 22.1% of its articles. (generated from OpenAlex topic counts and CAS ranking data)
Research area (LetPub): ENERGY & FUELS
Main research topics OpenAlex counts of recent articles; shares are approximate
- Energy and Environment ImpactsEnvironmental Science9%
- Solar Thermal and Photovoltaic SystemsEnergy6.9%
- Thermochemical Biomass Conversion ProcessesEngineering6.3%
- Biodiesel Production and ApplicationsEngineering6%
- Photovoltaic System Optimization TechniquesEnergy5.8%
- Solar Radiation and PhotovoltaicsComputer Science5.6%
- Smart Grid Energy ManagementEngineering5.3%
- Hybrid Renewable Energy SystemsEnergy5.3%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Engineering Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 4 |
| Minor | Energy & Fuels | Zone 4 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Engineering Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 4 |
| Minor | Energy & Fuels | Zone 4 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Not covered
Not covered by this edition.
Database indexing
ESCIScopusLetPub
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
- CiteScore 2026-06
- 1.1LetPub ·
- SJR 2026-06
- 0.22LetPub ·
- SNIP 2026-06
- 0.23LetPub ·
- h-index
- 21OpenAlex ·
- i10-index
- 82OpenAlex ·
- 2-year mean citedness
- 0.36OpenAlex ·
- Self-citation rate
- 20%LetPub ·
- Share of gold OA articles
- 22.12%LetPub ·
Volume
- Articles per year
- 64LetPub ·
Articles by year OpenAlex count · 801 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 11 | 11 | 1 |
| 2025 | 64 | 64 | 30 |
| 2024 | 20 | 20 | 3 |
| 2023 | 20 | 20 | 4 |
| 2022 | 37 | 37 | 14 |
| 2021 | 34 | 34 | 122 |
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.
Fees & open access
APC and open-access policy
Fully open accessOpenAlex
Every article is open access; authors usually pay an article processing charge (APC).
No source has fee information yet; check the journal's website.
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Profile
Publication details and official links
- Publisher
- Regional Energy Resources Information Center
- ISSN
- 1513-718X
- Official links
- Journal homepage ↗OpenAlex
FAQ
Frequently asked questions about International Energy Journal
What CAS zone is International Energy Journal in?
In the 2025 upgraded edition of the CAS Journal Ranking, International Energy Journal is in Zone 4 of Engineering, and in Zone 4 of the minor category Energy & Fuels. In the 2026 Xinrui edition it is in Zone 4 of Engineering. Zones from different editions, and from major and minor categories, are not interchangeable.
Which databases index International Energy Journal?
According to LetPub and DOAJ records, International Energy Journal is indexed in ESCI and Scopus.
Is International Energy Journal open access, and what is the APC?
International Energy Journal is a fully open-access journal. Fee information is not available yet; check the journal's website.
Sources and updates
The facts on this page come from LetPub, 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: .