International Journal of Global Energy Issues

Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Category	Year	Quartile
Energy Engineering and Power Technology	1999	Q3
Energy Engineering and Power Technology	2000	Q3
Energy Engineering and Power Technology	2001	Q2
Energy Engineering and Power Technology	2002	Q2
Energy Engineering and Power Technology	2003	Q2
Energy Engineering and Power Technology	2004	Q3
Energy Engineering and Power Technology	2005	Q3
Energy Engineering and Power Technology	2006	Q3
Energy Engineering and Power Technology	2007	Q2
Energy Engineering and Power Technology	2008	Q2
Energy Engineering and Power Technology	2009	Q2
Energy Engineering and Power Technology	2010	Q2
Energy Engineering and Power Technology	2011	Q2
Energy Engineering and Power Technology	2012	Q3
Energy Engineering and Power Technology	2013	Q3
Energy Engineering and Power Technology	2014	Q2
Energy Engineering and Power Technology	2015	Q3
Energy Engineering and Power Technology	2016	Q3
Energy Engineering and Power Technology	2017	Q3
Energy Engineering and Power Technology	2018	Q3
Energy Engineering and Power Technology	2019	Q3
Energy Engineering and Power Technology	2020	Q3
Energy Engineering and Power Technology	2021	Q4
Energy Engineering and Power Technology	2022	Q4
Energy Engineering and Power Technology	2023	Q4
Nuclear Energy and Engineering	1999	Q3
Nuclear Energy and Engineering	2000	Q3
Nuclear Energy and Engineering	2001	Q3
Nuclear Energy and Engineering	2002	Q2
Nuclear Energy and Engineering	2003	Q2
Nuclear Energy and Engineering	2004	Q3
Nuclear Energy and Engineering	2005	Q3
Nuclear Energy and Engineering	2006	Q3
Nuclear Energy and Engineering	2007	Q2
Nuclear Energy and Engineering	2008	Q2
Nuclear Energy and Engineering	2009	Q3
Nuclear Energy and Engineering	2010	Q3
Nuclear Energy and Engineering	2011	Q3
Nuclear Energy and Engineering	2012	Q4
Nuclear Energy and Engineering	2013	Q3
Nuclear Energy and Engineering	2014	Q3
Nuclear Energy and Engineering	2015	Q3
Nuclear Energy and Engineering	2016	Q3
Nuclear Energy and Engineering	2017	Q4
Nuclear Energy and Engineering	2018	Q3
Nuclear Energy and Engineering	2019	Q3
Nuclear Energy and Engineering	2020	Q3
Nuclear Energy and Engineering	2021	Q4
Nuclear Energy and Engineering	2022	Q3
Nuclear Energy and Engineering	2023	Q4
Renewable Energy, Sustainability and the Environment	1999	Q4
Renewable Energy, Sustainability and the Environment	2000	Q3
Renewable Energy, Sustainability and the Environment	2001	Q3
Renewable Energy, Sustainability and the Environment	2002	Q2
Renewable Energy, Sustainability and the Environment	2003	Q2
Renewable Energy, Sustainability and the Environment	2004	Q3
Renewable Energy, Sustainability and the Environment	2005	Q4
Renewable Energy, Sustainability and the Environment	2006	Q3
Renewable Energy, Sustainability and the Environment	2007	Q3
Renewable Energy, Sustainability and the Environment	2008	Q3
Renewable Energy, Sustainability and the Environment	2009	Q3
Renewable Energy, Sustainability and the Environment	2010	Q3
Renewable Energy, Sustainability and the Environment	2011	Q3
Renewable Energy, Sustainability and the Environment	2012	Q3
Renewable Energy, Sustainability and the Environment	2013	Q3
Renewable Energy, Sustainability and the Environment	2014	Q3
Renewable Energy, Sustainability and the Environment	2015	Q4
Renewable Energy, Sustainability and the Environment	2016	Q3
Renewable Energy, Sustainability and the Environment	2017	Q4
Renewable Energy, Sustainability and the Environment	2018	Q4
Renewable Energy, Sustainability and the Environment	2019	Q3
Renewable Energy, Sustainability and the Environment	2020	Q4
Renewable Energy, Sustainability and the Environment	2021	Q4
Renewable Energy, Sustainability and the Environment	2022	Q4
Renewable Energy, Sustainability and the Environment	2023	Q4

SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Year	SJR
1999	0.116
2000	0.131
2001	0.146
2002	0.269
2003	0.357
2004	0.133
2005	0.120
2006	0.132
2007	0.211
2008	0.305
2009	0.212
2010	0.209
2011	0.225
2012	0.190
2013	0.221
2014	0.264
2015	0.179
2016	0.237
2017	0.199
2018	0.221
2019	0.237
2020	0.223
2021	0.156
2022	0.211
2023	0.184

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	16
2000	44
2001	51
2002	42
2003	52
2004	50
2005	45
2006	39
2007	55
2008	49
2009	44
2010	26
2011	15
2012	12
2013	23
2014	15
2015	22
2016	27
2017	23
2018	21
2019	5
2020	20
2021	41
2022	32
2023	50

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per document	Year	Value
Cites / Doc. (4 years)	1999	0.094
Cites / Doc. (4 years)	2000	0.090
Cites / Doc. (4 years)	2001	0.118
Cites / Doc. (4 years)	2002	0.235
Cites / Doc. (4 years)	2003	0.216
Cites / Doc. (4 years)	2004	0.228
Cites / Doc. (4 years)	2005	0.144
Cites / Doc. (4 years)	2006	0.217
Cites / Doc. (4 years)	2007	0.344
Cites / Doc. (4 years)	2008	0.402
Cites / Doc. (4 years)	2009	0.500
Cites / Doc. (4 years)	2010	0.492
Cites / Doc. (4 years)	2011	0.529
Cites / Doc. (4 years)	2012	0.410
Cites / Doc. (4 years)	2013	0.423
Cites / Doc. (4 years)	2014	0.303
Cites / Doc. (4 years)	2015	0.415
Cites / Doc. (4 years)	2016	0.431
Cites / Doc. (4 years)	2017	0.414
Cites / Doc. (4 years)	2018	0.494
Cites / Doc. (4 years)	2019	0.441
Cites / Doc. (4 years)	2020	0.842
Cites / Doc. (4 years)	2021	0.580
Cites / Doc. (4 years)	2022	1.287
Cites / Doc. (4 years)	2023	0.990
Cites / Doc. (3 years)	1999	0.094
Cites / Doc. (3 years)	2000	0.112
Cites / Doc. (3 years)	2001	0.118
Cites / Doc. (3 years)	2002	0.216
Cites / Doc. (3 years)	2003	0.234
Cites / Doc. (3 years)	2004	0.097
Cites / Doc. (3 years)	2005	0.132
Cites / Doc. (3 years)	2006	0.163
Cites / Doc. (3 years)	2007	0.388
Cites / Doc. (3 years)	2008	0.396
Cites / Doc. (3 years)	2009	0.538
Cites / Doc. (3 years)	2010	0.459
Cites / Doc. (3 years)	2011	0.462
Cites / Doc. (3 years)	2012	0.329
Cites / Doc. (3 years)	2013	0.453
Cites / Doc. (3 years)	2014	0.280
Cites / Doc. (3 years)	2015	0.280
Cites / Doc. (3 years)	2016	0.433
Cites / Doc. (3 years)	2017	0.438
Cites / Doc. (3 years)	2018	0.486
Cites / Doc. (3 years)	2019	0.394
Cites / Doc. (3 years)	2020	0.918
Cites / Doc. (3 years)	2021	0.413
Cites / Doc. (3 years)	2022	1.318
Cites / Doc. (3 years)	2023	1.000
Cites / Doc. (2 years)	1999	0.110
Cites / Doc. (2 years)	2000	0.109
Cites / Doc. (2 years)	2001	0.083
Cites / Doc. (2 years)	2002	0.253
Cites / Doc. (2 years)	2003	0.215
Cites / Doc. (2 years)	2004	0.117
Cites / Doc. (2 years)	2005	0.098
Cites / Doc. (2 years)	2006	0.116
Cites / Doc. (2 years)	2007	0.381
Cites / Doc. (2 years)	2008	0.415
Cites / Doc. (2 years)	2009	0.548
Cites / Doc. (2 years)	2010	0.290
Cites / Doc. (2 years)	2011	0.457
Cites / Doc. (2 years)	2012	0.244
Cites / Doc. (2 years)	2013	0.370
Cites / Doc. (2 years)	2014	0.257
Cites / Doc. (2 years)	2015	0.184
Cites / Doc. (2 years)	2016	0.459
Cites / Doc. (2 years)	2017	0.510
Cites / Doc. (2 years)	2018	0.320
Cites / Doc. (2 years)	2019	0.386
Cites / Doc. (2 years)	2020	0.500
Cites / Doc. (2 years)	2021	0.120
Cites / Doc. (2 years)	2022	1.361
Cites / Doc. (2 years)	2023	1.137

Total Cites

Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Cites	Year	Value
Self Cites	1999	0
Self Cites	2000	1
Self Cites	2001	1
Self Cites	2002	10
Self Cites	2003	9
Self Cites	2004	1
Self Cites	2005	1
Self Cites	2006	1
Self Cites	2007	3
Self Cites	2008	5
Self Cites	2009	3
Self Cites	2010	3
Self Cites	2011	1
Self Cites	2012	1
Self Cites	2013	0
Self Cites	2014	0
Self Cites	2015	0
Self Cites	2016	1
Self Cites	2017	3
Self Cites	2018	1
Self Cites	2019	0
Self Cites	2020	0
Self Cites	2021	3
Self Cites	2022	1
Self Cites	2023	3
Total Cites	1999	13
Total Cites	2000	14
Total Cites	2001	16
Total Cites	2002	24
Total Cites	2003	32
Total Cites	2004	14
Total Cites	2005	19
Total Cites	2006	24
Total Cites	2007	52
Total Cites	2008	55
Total Cites	2009	77
Total Cites	2010	68
Total Cites	2011	55
Total Cites	2012	28
Total Cites	2013	24
Total Cites	2014	14
Total Cites	2015	14
Total Cites	2016	26
Total Cites	2017	28
Total Cites	2018	35
Total Cites	2019	28
Total Cites	2020	45
Total Cites	2021	19
Total Cites	2022	87
Total Cites	2023	93

External Cites per Doc

Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

Cites	Year	Value
External Cites per document	1999	0.094
External Cites per document	2000	0.104
External Cites per document	2001	0.110
External Cites per document	2002	0.126
External Cites per document	2003	0.168
External Cites per document	2004	0.090
External Cites per document	2005	0.125
External Cites per document	2006	0.156
External Cites per document	2007	0.366
External Cites per document	2008	0.360
External Cites per document	2009	0.517
External Cites per document	2010	0.439
External Cites per document	2011	0.454
External Cites per document	2012	0.318
External Cites per document	2013	0.453
External Cites per document	2014	0.280
External Cites per document	2015	0.280
External Cites per document	2016	0.417
External Cites per document	2017	0.391
External Cites per document	2018	0.472
External Cites per document	2019	0.394
External Cites per document	2020	0.918
External Cites per document	2021	0.348
External Cites per document	2022	1.303
External Cites per document	2023	0.968
Cites per document	1999	0.094
Cites per document	2000	0.112
Cites per document	2001	0.118
Cites per document	2002	0.216
Cites per document	2003	0.234
Cites per document	2004	0.097
Cites per document	2005	0.132
Cites per document	2006	0.163
Cites per document	2007	0.388
Cites per document	2008	0.396
Cites per document	2009	0.538
Cites per document	2010	0.459
Cites per document	2011	0.462
Cites per document	2012	0.329
Cites per document	2013	0.453
Cites per document	2014	0.280
Cites per document	2015	0.280
Cites per document	2016	0.433
Cites per document	2017	0.438
Cites per document	2018	0.486
Cites per document	2019	0.394
Cites per document	2020	0.918
Cites per document	2021	0.413
Cites per document	2022	1.318
Cites per document	2023	1.000

% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

Year	International Collaboration
1999	0.00
2000	27.27
2001	29.41
2002	2.38
2003	7.69
2004	20.00
2005	6.67
2006	33.33
2007	18.18
2008	73.47
2009	38.64
2010	11.54
2011	26.67
2012	25.00
2013	13.04
2014	33.33
2015	9.09
2016	18.52
2017	34.78
2018	28.57
2019	0.00
2020	10.00
2021	26.83
2022	12.50
2023	4.00

Citable documents

Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Documents	Year	Value
Non-citable documents	1999	1
Non-citable documents	2000	1
Non-citable documents	2001	1
Non-citable documents	2002	4
Non-citable documents	2003	5
Non-citable documents	2004	5
Non-citable documents	2005	2
Non-citable documents	2006	4
Non-citable documents	2007	6
Non-citable documents	2008	6
Non-citable documents	2009	3
Non-citable documents	2010	1
Non-citable documents	2011	0
Non-citable documents	2012	0
Non-citable documents	2013	0
Non-citable documents	2014	1
Non-citable documents	2015	1
Non-citable documents	2016	2
Non-citable documents	2017	2
Non-citable documents	2018	2
Non-citable documents	2019	2
Non-citable documents	2020	1
Non-citable documents	2021	1
Non-citable documents	2022	1
Non-citable documents	2023	1
Citable documents	1999	138
Citable documents	2000	124
Citable documents	2001	135
Citable documents	2002	107
Citable documents	2003	132
Citable documents	2004	140
Citable documents	2005	142
Citable documents	2006	143
Citable documents	2007	128
Citable documents	2008	133
Citable documents	2009	140
Citable documents	2010	147
Citable documents	2011	119
Citable documents	2012	85
Citable documents	2013	53
Citable documents	2014	49
Citable documents	2015	49
Citable documents	2016	58
Citable documents	2017	62
Citable documents	2018	70
Citable documents	2019	69
Citable documents	2020	48
Citable documents	2021	45
Citable documents	2022	65
Citable documents	2023	92

Cited documents

Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Documents	Year	Value
Uncited documents	1999	126
Uncited documents	2000	114
Uncited documents	2001	121
Uncited documents	2002	96
Uncited documents	2003	114
Uncited documents	2004	131
Uncited documents	2005	130
Uncited documents	2006	132
Uncited documents	2007	103
Uncited documents	2008	103
Uncited documents	2009	105
Uncited documents	2010	116
Uncited documents	2011	87
Uncited documents	2012	65
Uncited documents	2013	39
Uncited documents	2014	38
Uncited documents	2015	41
Uncited documents	2016	44
Uncited documents	2017	42
Uncited documents	2018	48
Uncited documents	2019	51
Uncited documents	2020	30
Uncited documents	2021	34
Uncited documents	2022	38
Uncited documents	2023	50
Cited documents	1999	13
Cited documents	2000	11
Cited documents	2001	15
Cited documents	2002	15
Cited documents	2003	23
Cited documents	2004	14
Cited documents	2005	14
Cited documents	2006	15
Cited documents	2007	31
Cited documents	2008	36
Cited documents	2009	38
Cited documents	2010	32
Cited documents	2011	32
Cited documents	2012	20
Cited documents	2013	14
Cited documents	2014	12
Cited documents	2015	9
Cited documents	2016	16
Cited documents	2017	22
Cited documents	2018	24
Cited documents	2019	20
Cited documents	2020	19
Cited documents	2021	12
Cited documents	2022	28
Cited documents	2023	43