Energy Engineering: Journal of the Association of Energy Engineers

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
Building and Construction	1999	Q4
Building and Construction	2000	Q3
Building and Construction	2001	Q3
Building and Construction	2002	Q3
Building and Construction	2003	Q3
Building and Construction	2004	Q3
Building and Construction	2005	Q4
Building and Construction	2006	Q4
Building and Construction	2007	Q3
Building and Construction	2008	Q3
Building and Construction	2009	Q4
Building and Construction	2010	Q4
Building and Construction	2011	Q4
Building and Construction	2012	Q3
Building and Construction	2013	Q4
Building and Construction	2014	Q4
Building and Construction	2015	Q4
Building and Construction	2016	Q4
Building and Construction	2017	Q4
Building and Construction	2018	Q4
Building and Construction	2019	Q4
Building and Construction	2020	Q4
Building and Construction	2021	Q4
Building and Construction	2022	Q4
Building and Construction	2023	Q4
Energy Engineering and Power Technology	1999	Q3
Energy Engineering and Power Technology	2000	Q3
Energy Engineering and Power Technology	2001	Q3
Energy Engineering and Power Technology	2002	Q3
Energy Engineering and Power Technology	2003	Q3
Energy Engineering and Power Technology	2004	Q2
Energy Engineering and Power Technology	2005	Q3
Energy Engineering and Power Technology	2006	Q4
Energy Engineering and Power Technology	2007	Q3
Energy Engineering and Power Technology	2008	Q3
Energy Engineering and Power Technology	2009	Q3
Energy Engineering and Power Technology	2010	Q3
Energy Engineering and Power Technology	2011	Q3
Energy Engineering and Power Technology	2012	Q3
Energy Engineering and Power Technology	2013	Q3
Energy Engineering and Power Technology	2014	Q3
Energy Engineering and Power Technology	2015	Q3
Energy Engineering and Power Technology	2016	Q4
Energy Engineering and Power Technology	2017	Q4
Energy Engineering and Power Technology	2018	Q4
Energy Engineering and Power Technology	2019	Q4
Energy Engineering and Power Technology	2020	Q4
Energy Engineering and Power Technology	2021	Q4
Energy Engineering and Power Technology	2022	Q4
Energy Engineering and Power Technology	2023	Q4
Renewable Energy, Sustainability and the Environment	1999	Q4
Renewable Energy, Sustainability and the Environment	2000	Q4
Renewable Energy, Sustainability and the Environment	2001	Q4
Renewable Energy, Sustainability and the Environment	2002	Q4
Renewable Energy, Sustainability and the Environment	2003	Q4
Renewable Energy, Sustainability and the Environment	2004	Q3
Renewable Energy, Sustainability and the Environment	2005	Q4
Renewable Energy, Sustainability and the Environment	2006	Q4
Renewable Energy, Sustainability and the Environment	2007	Q4
Renewable Energy, Sustainability and the Environment	2008	Q3
Renewable Energy, Sustainability and the Environment	2009	Q4
Renewable Energy, Sustainability and the Environment	2010	Q4
Renewable Energy, Sustainability and the Environment	2011	Q4
Renewable Energy, Sustainability and the Environment	2012	Q4
Renewable Energy, Sustainability and the Environment	2013	Q4
Renewable Energy, Sustainability and the Environment	2014	Q4
Renewable Energy, Sustainability and the Environment	2015	Q4
Renewable Energy, Sustainability and the Environment	2016	Q4
Renewable Energy, Sustainability and the Environment	2017	Q4
Renewable Energy, Sustainability and the Environment	2018	Q4
Renewable Energy, Sustainability and the Environment	2019	Q4
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	0.105
2000	0.111
2001	0.123
2002	0.128
2003	0.131
2004	0.163
2005	0.104
2006	0.100
2007	0.118
2008	0.161
2009	0.106
2010	0.119
2011	0.136
2012	0.156
2013	0.128
2014	0.129
2015	0.139
2016	0.134
2017	0.129
2018	0.123
2019	0.156
2020	0.155
2021	0.165
2022	0.155
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	34
2000	41
2001	67
2002	65
2003	39
2004	35
2005	34
2006	36
2007	41
2008	37
2009	35
2010	37
2011	38
2012	34
2013	41
2014	24
2015	39
2016	34
2017	36
2018	36
2019	16
2020	39
2021	113
2022	147
2023	146

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	0.042
Cites / Doc. (4 years)	2000	0.062
Cites / Doc. (4 years)	2001	0.248
Cites / Doc. (4 years)	2002	0.073
Cites / Doc. (4 years)	2003	0.053
Cites / Doc. (4 years)	2004	0.038
Cites / Doc. (4 years)	2005	0.029
Cites / Doc. (4 years)	2006	0.035
Cites / Doc. (4 years)	2007	0.083
Cites / Doc. (4 years)	2008	0.110
Cites / Doc. (4 years)	2009	0.088
Cites / Doc. (4 years)	2010	0.081
Cites / Doc. (4 years)	2011	0.107
Cites / Doc. (4 years)	2012	0.129
Cites / Doc. (4 years)	2013	0.188
Cites / Doc. (4 years)	2014	0.147
Cites / Doc. (4 years)	2015	0.190
Cites / Doc. (4 years)	2016	0.174
Cites / Doc. (4 years)	2017	0.138
Cites / Doc. (4 years)	2018	0.173
Cites / Doc. (4 years)	2019	0.241
Cites / Doc. (4 years)	2020	0.352
Cites / Doc. (4 years)	2021	0.567
Cites / Doc. (4 years)	2022	0.559
Cites / Doc. (4 years)	2023	0.708
Cites / Doc. (3 years)	1999	0.042
Cites / Doc. (3 years)	2000	0.038
Cites / Doc. (3 years)	2001	0.218
Cites / Doc. (3 years)	2002	0.077
Cites / Doc. (3 years)	2003	0.040
Cites / Doc. (3 years)	2004	0.029
Cites / Doc. (3 years)	2005	0.043
Cites / Doc. (3 years)	2006	0.037
Cites / Doc. (3 years)	2007	0.105
Cites / Doc. (3 years)	2008	0.135
Cites / Doc. (3 years)	2009	0.053
Cites / Doc. (3 years)	2010	0.106
Cites / Doc. (3 years)	2011	0.101
Cites / Doc. (3 years)	2012	0.136
Cites / Doc. (3 years)	2013	0.220
Cites / Doc. (3 years)	2014	0.106
Cites / Doc. (3 years)	2015	0.162
Cites / Doc. (3 years)	2016	0.135
Cites / Doc. (3 years)	2017	0.134
Cites / Doc. (3 years)	2018	0.119
Cites / Doc. (3 years)	2019	0.283
Cites / Doc. (3 years)	2020	0.432
Cites / Doc. (3 years)	2021	0.670
Cites / Doc. (3 years)	2022	0.595
Cites / Doc. (3 years)	2023	0.696
Cites / Doc. (2 years)	1999	0.029
Cites / Doc. (2 years)	2000	0.029
Cites / Doc. (2 years)	2001	0.253
Cites / Doc. (2 years)	2002	0.065
Cites / Doc. (2 years)	2003	0.015
Cites / Doc. (2 years)	2004	0.029
Cites / Doc. (2 years)	2005	0.041
Cites / Doc. (2 years)	2006	0.058
Cites / Doc. (2 years)	2007	0.114
Cites / Doc. (2 years)	2008	0.104
Cites / Doc. (2 years)	2009	0.038
Cites / Doc. (2 years)	2010	0.069
Cites / Doc. (2 years)	2011	0.097
Cites / Doc. (2 years)	2012	0.133
Cites / Doc. (2 years)	2013	0.181
Cites / Doc. (2 years)	2014	0.107
Cites / Doc. (2 years)	2015	0.123
Cites / Doc. (2 years)	2016	0.175
Cites / Doc. (2 years)	2017	0.110
Cites / Doc. (2 years)	2018	0.171
Cites / Doc. (2 years)	2019	0.278
Cites / Doc. (2 years)	2020	0.577
Cites / Doc. (2 years)	2021	0.727
Cites / Doc. (2 years)	2022	0.539
Cites / Doc. (2 years)	2023	0.700

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	1
Self Cites	2000	2
Self Cites	2001	16
Self Cites	2002	8
Self Cites	2003	2
Self Cites	2004	0
Self Cites	2005	0
Self Cites	2006	1
Self Cites	2007	1
Self Cites	2008	2
Self Cites	2009	1
Self Cites	2010	1
Self Cites	2011	1
Self Cites	2012	0
Self Cites	2013	1
Self Cites	2014	0
Self Cites	2015	0
Self Cites	2016	1
Self Cites	2017	0
Self Cites	2018	1
Self Cites	2019	2
Self Cites	2020	4
Self Cites	2021	22
Self Cites	2022	23
Self Cites	2023	45
Total Cites	1999	4
Total Cites	2000	4
Total Cites	2001	24
Total Cites	2002	11
Total Cites	2003	7
Total Cites	2004	5
Total Cites	2005	6
Total Cites	2006	4
Total Cites	2007	11
Total Cites	2008	15
Total Cites	2009	6
Total Cites	2010	12
Total Cites	2011	11
Total Cites	2012	15
Total Cites	2013	24
Total Cites	2014	12
Total Cites	2015	16
Total Cites	2016	14
Total Cites	2017	13
Total Cites	2018	13
Total Cites	2019	30
Total Cites	2020	38
Total Cites	2021	61
Total Cites	2022	100
Total Cites	2023	208

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	0.032
External Cites per document	2000	0.019
External Cites per document	2001	0.073
External Cites per document	2002	0.021
External Cites per document	2003	0.029
External Cites per document	2004	0.029
External Cites per document	2005	0.043
External Cites per document	2006	0.028
External Cites per document	2007	0.095
External Cites per document	2008	0.117
External Cites per document	2009	0.044
External Cites per document	2010	0.097
External Cites per document	2011	0.092
External Cites per document	2012	0.136
External Cites per document	2013	0.211
External Cites per document	2014	0.106
External Cites per document	2015	0.162
External Cites per document	2016	0.125
External Cites per document	2017	0.134
External Cites per document	2018	0.110
External Cites per document	2019	0.264
External Cites per document	2020	0.386
External Cites per document	2021	0.429
External Cites per document	2022	0.458
External Cites per document	2023	0.545
Cites per document	1999	0.042
Cites per document	2000	0.038
Cites per document	2001	0.218
Cites per document	2002	0.077
Cites per document	2003	0.040
Cites per document	2004	0.029
Cites per document	2005	0.043
Cites per document	2006	0.037
Cites per document	2007	0.105
Cites per document	2008	0.135
Cites per document	2009	0.053
Cites per document	2010	0.106
Cites per document	2011	0.101
Cites per document	2012	0.136
Cites per document	2013	0.220
Cites per document	2014	0.106
Cites per document	2015	0.162
Cites per document	2016	0.135
Cites per document	2017	0.134
Cites per document	2018	0.119
Cites per document	2019	0.283
Cites per document	2020	0.432
Cites per document	2021	0.670
Cites per document	2022	0.595
Cites per document	2023	0.696

% 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	2.94
2000	7.32
2001	1.49
2002	1.54
2003	2.56
2004	2.86
2005	8.82
2006	2.78
2007	2.44
2008	2.70
2009	5.71
2010	2.70
2011	0.00
2012	0.00
2013	2.44
2014	4.17
2015	7.69
2016	5.88
2017	5.56
2018	11.11
2019	12.50
2020	15.38
2021	13.27
2022	14.97
2023	7.53

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	20
Non-citable documents	2000	27
Non-citable documents	2001	20
Non-citable documents	2002	17
Non-citable documents	2003	21
Non-citable documents	2004	28
Non-citable documents	2005	25
Non-citable documents	2006	22
Non-citable documents	2007	23
Non-citable documents	2008	27
Non-citable documents	2009	26
Non-citable documents	2010	25
Non-citable documents	2011	29
Non-citable documents	2012	31
Non-citable documents	2013	34
Non-citable documents	2014	32
Non-citable documents	2015	29
Non-citable documents	2016	26
Non-citable documents	2017	20
Non-citable documents	2018	21
Non-citable documents	2019	21
Non-citable documents	2020	18
Non-citable documents	2021	11
Non-citable documents	2022	3
Non-citable documents	2023	1
Citable documents	1999	75
Citable documents	2000	77
Citable documents	2001	90
Citable documents	2002	125
Citable documents	2003	152
Citable documents	2004	143
Citable documents	2005	114
Citable documents	2006	86
Citable documents	2007	82
Citable documents	2008	84
Citable documents	2009	88
Citable documents	2010	88
Citable documents	2011	80
Citable documents	2012	79
Citable documents	2013	75
Citable documents	2014	81
Citable documents	2015	70
Citable documents	2016	78
Citable documents	2017	77
Citable documents	2018	88
Citable documents	2019	85
Citable documents	2020	70
Citable documents	2021	80
Citable documents	2022	165
Citable documents	2023	298

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	92
Uncited documents	2000	101
Uncited documents	2001	94
Uncited documents	2002	135
Uncited documents	2003	167
Uncited documents	2004	166
Uncited documents	2005	136
Uncited documents	2006	105
Uncited documents	2007	95
Uncited documents	2008	102
Uncited documents	2009	108
Uncited documents	2010	101
Uncited documents	2011	100
Uncited documents	2012	97
Uncited documents	2013	90
Uncited documents	2014	102
Uncited documents	2015	86
Uncited documents	2016	92
Uncited documents	2017	85
Uncited documents	2018	101
Uncited documents	2019	90
Uncited documents	2020	70
Uncited documents	2021	61
Uncited documents	2022	103
Uncited documents	2023	167
Cited documents	1999	3
Cited documents	2000	3
Cited documents	2001	16
Cited documents	2002	7
Cited documents	2003	6
Cited documents	2004	5
Cited documents	2005	3
Cited documents	2006	3
Cited documents	2007	10
Cited documents	2008	9
Cited documents	2009	6
Cited documents	2010	12
Cited documents	2011	9
Cited documents	2012	13
Cited documents	2013	19
Cited documents	2014	11
Cited documents	2015	13
Cited documents	2016	12
Cited documents	2017	12
Cited documents	2018	8
Cited documents	2019	16
Cited documents	2020	18
Cited documents	2021	30
Cited documents	2022	65
Cited documents	2023	132

% Female Authors

Evolution of the percentage of female authors.

Year	Female Percent
1999	4.55
2000	4.65
2001	20.59
2002	15.56
2003	4.26
2004	11.36
2005	4.88
2006	10.20
2007	6.25
2008	13.73
2009	2.78
2010	6.90
2011	19.57
2012	6.06
2013	26.09
2014	9.09
2015	28.57
2016	14.29
2017	14.29
2018	18.18
2019	32.26
2020	27.13
2021	28.28
2022	28.07
2023	32.65

Documents cited by public policy (Overton)

Evolution of the number of documents cited by public policy documents according to Overton database.

Documents	Year	Value
Overton	1999	1
Overton	2000	1
Overton	2001	0
Overton	2002	2
Overton	2003	0
Overton	2004	1
Overton	2005	2
Overton	2006	1
Overton	2007	1
Overton	2008	2
Overton	2009	1
Overton	2010	0
Overton	2011	2
Overton	2012	4
Overton	2013	0
Overton	2014	0
Overton	2015	0
Overton	2016	0
Overton	2017	1
Overton	2018	0
Overton	2019	0
Overton	2020	0
Overton	2021	0
Overton	2022	0
Overton	2023	0