Journal rankings · indicator year 2000
Choose a field to open its ranking, or a journal to find its row in its subfield’s list.
Field ranking · 2000
Energy journal rankings 2000
16 ranked journals · Field in Physical Sciences
Energy has 16 ranked journals in 2000. The median journal has an OJR of 0.71, below the world average of 1.00; Q1 starts at OJR 1.26. The top three are Journal of Solar Energy Engineering, Applied Catalysis B: Environmental, and Annual Review of Energy and the Environment.
Ranks and citation indicators: 2000. Journal access status and listed APC: source snapshot September 23, 2026.
Journals whose main subfield sits in this category and that published at least 30 citable documents (articles, reviews and conference papers) in 1997–1999, the window the 2000 score is computed on.
The OpenJournalRank Indicator (OJR) is a free, publicly available metric of a journal’s field-normalized citation impact, computed from open OpenAlex citation data. It compares citations to a journal’s papers from the previous three years with the world average for papers of the same subfield, year and type, so 1.00 is the world average and values can be compared across fields. It is computed with the NCI3 method.
The middle OJR among ranked journals in this category: half score higher, half lower. 1.00 is the world average for papers of the same subfield, year and type.
The dot is this category, the solid tick is the median of all ranked journals and the dashed line is the world average.
Share of ranked journals in this category that are fully open access, so every paper is free to read. Hybrid journals, which sell subscriptions and open single papers for a fee, are not counted.
Median list price of the article processing charge, in US dollars, among ranked journals in this category that list a price above zero. Journals with a listed APC of $0 and journals with no known price are left out of this median. The At a glance table below gives a second median that includes the $0 prices.
Subfields in Energy (5)
Up to Physical Sciences16 ranked journals
Filters
Rank is the position by OJR within the list on screen; 1 is the highest. | OJR is field-normalized 3-year citation impact: 1.00 is the world average for papers of the same subfield, year and type, so values compare across fields. The badge is the journal’s quartile in this list. | Citations per paper over a two-year window, counted from OpenAlex. It is not field-normalized, so compare it only between journals of the same field. ▲ or ▼ is the change from 1999. This is OpenJournalRank’s own count, not Clarivate’s Journal Impact Factor. | Citable documents (articles, reviews and conference papers) published in 1997–1999, the window the 2000 OJR is computed on. A journal needs at least 30 to be ranked. | Share of the journal’s 1997–1999 papers that are free to read in any open-access form. The green OA tag next to a title marks a fully open-access journal. | List price of the article processing charge in US dollars. “$0 listed” means the listed price is zero; a dash means no price is listed. | The line is the journal’s OJR from 2000 to 2000. | Compare |
|---|---|---|---|---|---|---|---|
1Journal of Solar Energy EngineeringASM International · United States | 2.55Q1 | 0.78no 1999 value | 129 | 6% | — | — | |
2Applied Catalysis B: EnvironmentalElsevier BV · Netherlands | 2.24Q1 | 2.90no 1999 value | 414 | 4% | $5,950 | — | |
3Annual Review of Energy and the EnvironmentAnnual Reviews · United States | 1.96Q1 | 0.97no 1999 value | 51 | 26% | — | — | |
4OPEC ReviewWiley · United Kingdom | 1.26Q1 | 1.15no 1999 value | 57 | 5% | — | — | |
5Journal of Colloid and Interface ScienceElsevier BV · United States | 1.22Q2 | 1.38no 1999 value | 1,876 | 6% | $4,470 | — | |
6Solar EnergyElsevier BV · United States | 1.10Q2 | 0.60no 1999 value | 491 | 3% | $3,900 | — | |
7GeothermicsElsevier BV · United Kingdom | 0.83Q2 | 0.74no 1999 value | 144 | 2% | $3,220 | — | |
8Journal of Photochemistry and Photobiology A ChemistryElsevier BV · Switzerland | 0.82Q2 | 0.87no 1999 value | 884 | 2% | $3,470 | — | |
9International Journal of Hydrogen EnergyElsevier BV · United Kingdom | 0.59Q3 | 0.63no 1999 value | 485 | 4% | $3,730 | — | |
10Journal of Advanced Oxidation TechnologiesDe Gruyter · United States | 0.57Q3 | 0.52no 1999 value | 72 | — | — | — | |
11Journal of Applied PhycologySpringer Science+Business Media · Netherlands | 0.50Q3 | 0.55no 1999 value | 225 | 4% | $3,890 | — | |
12International Journal of PhotoenergyOAHindawi Publishing Corporation · United Kingdom | 0.47Q3 | 0.38no 1999 value | 34 | 100% | $2,160 | — | |
13Renewable EnergyElsevier BV · United Kingdom | 0.44Q4 | 0.35no 1999 value | 779 | 2% | $4,460 | — | |
14Fuel Cells BulletinElsevier BV · United Kingdom | 0.09Q4 | 0.06no 1999 value | 269 | 1% | — | — | |
15Acta Physico-Chimica SinicaPeking University Press · China | 0.06Q4 | 0.06no 1999 value | 680 | 0% | $4,500 | — | |
16Chinese Journal of Structural ChemistryElsevier BV · China | 0.01Q4 | 0.01no 1999 value | 170 | 0% | $2,500 | — |
Citations made in 2000. Corpus-wide, 66.2% of core-journal articles and reviews published that year have at least one matched reference; the share varies by journal and field.
4 additional Energy journals with metrics are unranked under this release’s eligibility rules: a journal needs at least 30 citable documents in 1997–1999, at least 80% of them with a subfield, and a positive world-average expectation. Ranks are within the whole category; filters hide rows without re-ranking. OJR excludes self-citations.
At a glance
Indicator year: 2000. Publication window: 1997–1999. How these summaries are calculated
- Ranked journals
- 16
- Window papers (baseline)
- 15,137 Change unavailable from indicator year 1997
- Median OJR
- 0.71 Change unavailable from indicator year 1997
- Rising journals (2025)
- 7Comparison-group list (7)
Window papers are the baseline paper population: citable papers (articles, reviews and conference papers) from 1997–1999 in all journals of the world-average baseline, including non-core journals, counted by each paper’s own subfield. They are not the papers of the ranked journals alone.
| Measure | Year series | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ranked journals | 16 | 17 | 18 | 18 | 19 | 18 | 18 | 19 | 20 | 23 | 26 | 26 | 29 | 32 | 36 | 36 | 41 | 41 | 45 | 46 | 44 | 41 | 45 | 49 | 54 | 58 | |
| Window papers (baseline) | 15,137 | 17,187 | 19,006 | 21,447 | 24,127 | 27,323 | 30,403 | 33,905 | 38,233 | 43,381 | 48,798 | 54,272 | 61,905 | 69,488 | 77,886 | 84,852 | 89,706 | 92,507 | 95,102 | 100,982 | 109,823 | 119,796 | 129,207 | 137,588 | 145,743 | 156,610 | |
| Median OJR | 0.71 | 0.69 | 0.80 | 0.95 | 0.784 | 0.93 | 0.748 | 0.68 | 0.64 | 0.76 | 1.027 | 1.25 | 1.06 | 1.033 | 0.999 | 0.85 | 0.785 | 0.745 | 0.72 | 0.861 | 0.856 | 0.94 | 0.88 | 0.83 | 0.863 | 0.90 |
| Measure | Category statistic | Eligible population |
|---|---|---|
| Journal self-citation share | Median: 3.5% | 53 journals |
| Retracted papers per 1,000 | Pooled rate: 1.414 per 1,000 | 39 journals |
| Output growth | Median: +7.3% | 41 journals |
| Open access share | Median: 60.2% | 58 journals |
| Listed APC (USD) | Median including $0 listed prices: $2,750 | 47 ranked journals with a known listed price, including $0 listed prices |
| International collaboration share | Median: 26.8% | 56 journals |
| Review share | Median: 0.0% | 58 journals |
| Articles-only OJR | Median: 0.93 | 56 journals |
| Uncited share | Median: 15.9% | 58 journals |
| Citation concentration | Median: 40.0% | 58 journals |
How to read these rankings
- OJR, the OpenJournalRank Indicator
- A field-normalized 3-year citation impact, computed from OpenAlex with the NCI3 method. It divides the citations a journal’s papers received by the world average for papers of the same subfield, year and type, so 1.00 is the world average and 2.00 means twice as many citations as expected. Because it is normalized, it can be compared across fields. Read the methodology
- Quartiles
- Q1 to Q4 split the ranked journals of the list you are viewing into four equal groups by OJR. A journal’s quartile depends on the list: the same journal can be Q1 in its subfield and Q2 among all journals.
- Impact factor (2-year)
- Citations per paper over a two-year window, counted from OpenAlex. It is easy to compare with familiar impact factors but is not field-normalized, so compare it only within a field. It is not Clarivate’s Journal Impact Factor. Why it differs from the Journal Impact Factor
- Rank ranges
- Each rank in the latest year carries a likely range from 1,000 resamples of the journal’s papers. Where two journals’ ranges overlap, the data cannot tell them apart, so treat neighbouring ranks as ties.