Energy and Environment

Energy & Environment is an interdisciplinary journal inviting energy policy analysts, natural scientists and engineers, as well as lawyers and economists to contribute to mutual understanding and learning, believing that better communication between experts will enhance the quality of policy, advance social well-being and help to reduce conflict. The journal encourages dialogue between the social sciences as energy demand and supply are observed and analysed with reference to politics of policy-making and implementation. The rapidly evolving social and environmental impacts of energy supply, transport, production and use at all levels require contribution from many disciplines if policy is to be effective. In particular E & E invite contributions from the study of policy delivery, ultimately more important than policy formation. The geopolitics of energy are also important, as are the impacts of environmental regulations and advancing technologies on national and local politics, and even global energy politics. Energy & Environment is a forum for constructive, professional information sharing, as well as debate across disciplines and professions, including the financial sector. Mathematical articles are outside the scope of Energy & Environment. The broader policy implications of submitted research should be addressed and environmental implications, not just emission quantities, be discussed with reference to scientific assumptions. This applies especially to technical papers based on arguments suggested by other disciplines, funding bodies or directly by policy-makers.

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	Q2
Energy Engineering and Power Technology	2005	Q2
Energy Engineering and Power Technology	2006	Q1
Energy Engineering and Power Technology	2007	Q2
Energy Engineering and Power Technology	2008	Q3
Energy Engineering and Power Technology	2009	Q2
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	Q2
Energy Engineering and Power Technology	2015	Q2
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	Q2
Energy Engineering and Power Technology	2020	Q2
Energy Engineering and Power Technology	2021	Q2
Energy Engineering and Power Technology	2022	Q2
Energy Engineering and Power Technology	2023	Q2
Energy (miscellaneous)	1999	Q2
Energy (miscellaneous)	2000	Q2
Energy (miscellaneous)	2001	Q2
Energy (miscellaneous)	2002	Q2
Energy (miscellaneous)	2003	Q2
Energy (miscellaneous)	2004	Q1
Energy (miscellaneous)	2005	Q1
Energy (miscellaneous)	2006	Q1
Energy (miscellaneous)	2007	Q1
Energy (miscellaneous)	2008	Q3
Energy (miscellaneous)	2009	Q2
Energy (miscellaneous)	2010	Q3
Energy (miscellaneous)	2011	Q3
Energy (miscellaneous)	2012	Q3
Energy (miscellaneous)	2013	Q2
Energy (miscellaneous)	2014	Q2
Energy (miscellaneous)	2015	Q2
Energy (miscellaneous)	2016	Q3
Energy (miscellaneous)	2017	Q2
Energy (miscellaneous)	2018	Q3
Energy (miscellaneous)	2019	Q2
Energy (miscellaneous)	2020	Q2
Energy (miscellaneous)	2021	Q2
Energy (miscellaneous)	2022	Q2
Energy (miscellaneous)	2023	Q2
Environmental Engineering	1999	Q4
Environmental Engineering	2000	Q3
Environmental Engineering	2001	Q3
Environmental Engineering	2002	Q3
Environmental Engineering	2003	Q3
Environmental Engineering	2004	Q3
Environmental Engineering	2005	Q2
Environmental Engineering	2006	Q2
Environmental Engineering	2007	Q2
Environmental Engineering	2008	Q3
Environmental Engineering	2009	Q3
Environmental Engineering	2010	Q3
Environmental Engineering	2011	Q3
Environmental Engineering	2012	Q3
Environmental Engineering	2013	Q3
Environmental Engineering	2014	Q3
Environmental Engineering	2015	Q3
Environmental Engineering	2016	Q3
Environmental Engineering	2017	Q3
Environmental Engineering	2018	Q3
Environmental Engineering	2019	Q2
Environmental Engineering	2020	Q2
Environmental Engineering	2021	Q2
Environmental Engineering	2022	Q2
Environmental Engineering	2023	Q2
Renewable Energy, Sustainability and the Environment	1999	Q3
Renewable Energy, Sustainability and the Environment	2000	Q3
Renewable Energy, Sustainability and the Environment	2001	Q3
Renewable Energy, Sustainability and the Environment	2002	Q3
Renewable Energy, Sustainability and the Environment	2003	Q3
Renewable Energy, Sustainability and the Environment	2004	Q2
Renewable Energy, Sustainability and the Environment	2005	Q2
Renewable Energy, Sustainability and the Environment	2006	Q2
Renewable Energy, Sustainability and the Environment	2007	Q2
Renewable Energy, Sustainability and the Environment	2008	Q4
Renewable Energy, Sustainability and the Environment	2009	Q3
Renewable Energy, Sustainability and the Environment	2010	Q3
Renewable Energy, Sustainability and the Environment	2011	Q4
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	Q3
Renewable Energy, Sustainability and the Environment	2016	Q3
Renewable Energy, Sustainability and the Environment	2017	Q3
Renewable Energy, Sustainability and the Environment	2018	Q3
Renewable Energy, Sustainability and the Environment	2019	Q3
Renewable Energy, Sustainability and the Environment	2020	Q2
Renewable Energy, Sustainability and the Environment	2021	Q3
Renewable Energy, Sustainability and the Environment	2022	Q3
Renewable Energy, Sustainability and the Environment	2023	Q2

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	0.136
2000	0.139
2001	0.204
2002	0.230
2003	0.237
2004	0.285
2005	0.338
2006	0.435
2007	0.336
2008	0.149
2009	0.197
2010	0.185
2011	0.192
2012	0.215
2013	0.222
2014	0.285
2015	0.337
2016	0.262
2017	0.258
2018	0.300
2019	0.453
2020	0.546
2021	0.531
2022	0.598
2023	0.644

Total Documents

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

Year	Documents
1999	44
2000	39
2001	31
2002	53
2003	41
2004	69
2005	78
2006	72
2007	65
2008	62
2009	82
2010	63
2011	62
2012	74
2013	61
2014	67
2015	69
2016	41
2017	47
2018	83
2019	82
2020	79
2021	73
2022	136
2023	359

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	0.189
Cites / Doc. (4 years)	2000	0.144
Cites / Doc. (4 years)	2001	0.169
Cites / Doc. (4 years)	2002	0.239
Cites / Doc. (4 years)	2003	0.222
Cites / Doc. (4 years)	2004	0.354
Cites / Doc. (4 years)	2005	0.314
Cites / Doc. (4 years)	2006	0.552
Cites / Doc. (4 years)	2007	0.673
Cites / Doc. (4 years)	2008	0.342
Cites / Doc. (4 years)	2009	0.321
Cites / Doc. (4 years)	2010	0.306
Cites / Doc. (4 years)	2011	0.375
Cites / Doc. (4 years)	2012	0.353
Cites / Doc. (4 years)	2013	0.406
Cites / Doc. (4 years)	2014	0.435
Cites / Doc. (4 years)	2015	0.549
Cites / Doc. (4 years)	2016	0.428
Cites / Doc. (4 years)	2017	0.584
Cites / Doc. (4 years)	2018	0.875
Cites / Doc. (4 years)	2019	1.558
Cites / Doc. (4 years)	2020	2.431
Cites / Doc. (4 years)	2021	2.911
Cites / Doc. (4 years)	2022	3.713
Cites / Doc. (4 years)	2023	4.046
Cites / Doc. (3 years)	1999	0.189
Cites / Doc. (3 years)	2000	0.146
Cites / Doc. (3 years)	2001	0.169
Cites / Doc. (3 years)	2002	0.281
Cites / Doc. (3 years)	2003	0.276
Cites / Doc. (3 years)	2004	0.416
Cites / Doc. (3 years)	2005	0.325
Cites / Doc. (3 years)	2006	0.638
Cites / Doc. (3 years)	2007	0.438
Cites / Doc. (3 years)	2008	0.251
Cites / Doc. (3 years)	2009	0.357
Cites / Doc. (3 years)	2010	0.297
Cites / Doc. (3 years)	2011	0.285
Cites / Doc. (3 years)	2012	0.324
Cites / Doc. (3 years)	2013	0.442
Cites / Doc. (3 years)	2014	0.467
Cites / Doc. (3 years)	2015	0.653
Cites / Doc. (3 years)	2016	0.421
Cites / Doc. (3 years)	2017	0.588
Cites / Doc. (3 years)	2018	0.924
Cites / Doc. (3 years)	2019	1.930
Cites / Doc. (3 years)	2020	2.689
Cites / Doc. (3 years)	2021	3.070
Cites / Doc. (3 years)	2022	3.829
Cites / Doc. (3 years)	2023	4.212
Cites / Doc. (2 years)	1999	0.203
Cites / Doc. (2 years)	2000	0.118
Cites / Doc. (2 years)	2001	0.145
Cites / Doc. (2 years)	2002	0.343
Cites / Doc. (2 years)	2003	0.214
Cites / Doc. (2 years)	2004	0.500
Cites / Doc. (2 years)	2005	0.427
Cites / Doc. (2 years)	2006	0.388
Cites / Doc. (2 years)	2007	0.300
Cites / Doc. (2 years)	2008	0.336
Cites / Doc. (2 years)	2009	0.378
Cites / Doc. (2 years)	2010	0.215
Cites / Doc. (2 years)	2011	0.248
Cites / Doc. (2 years)	2012	0.264
Cites / Doc. (2 years)	2013	0.338
Cites / Doc. (2 years)	2014	0.563
Cites / Doc. (2 years)	2015	0.695
Cites / Doc. (2 years)	2016	0.331
Cites / Doc. (2 years)	2017	0.600
Cites / Doc. (2 years)	2018	1.182
Cites / Doc. (2 years)	2019	2.169
Cites / Doc. (2 years)	2020	2.885
Cites / Doc. (2 years)	2021	2.957
Cites / Doc. (2 years)	2022	3.730
Cites / Doc. (2 years)	2023	4.507

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	0
Self Cites	2001	4
Self Cites	2002	4
Self Cites	2003	6
Self Cites	2004	21
Self Cites	2005	15
Self Cites	2006	26
Self Cites	2007	18
Self Cites	2008	5
Self Cites	2009	10
Self Cites	2010	6
Self Cites	2011	9
Self Cites	2012	15
Self Cites	2013	17
Self Cites	2014	15
Self Cites	2015	12
Self Cites	2016	2
Self Cites	2017	11
Self Cites	2018	37
Self Cites	2019	23
Self Cites	2020	25
Self Cites	2021	41
Self Cites	2022	47
Self Cites	2023	82
Total Cites	1999	14
Total Cites	2000	15
Total Cites	2001	21
Total Cites	2002	32
Total Cites	2003	34
Total Cites	2004	52
Total Cites	2005	53
Total Cites	2006	120
Total Cites	2007	96
Total Cites	2008	54
Total Cites	2009	71
Total Cites	2010	62
Total Cites	2011	59
Total Cites	2012	67
Total Cites	2013	88
Total Cites	2014	92
Total Cites	2015	132
Total Cites	2016	83
Total Cites	2017	104
Total Cites	2018	145
Total Cites	2019	330
Total Cites	2020	570
Total Cites	2021	749
Total Cites	2022	896
Total Cites	2023	1213

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	0.189
External Cites per document	2000	0.146
External Cites per document	2001	0.137
External Cites per document	2002	0.246
External Cites per document	2003	0.228
External Cites per document	2004	0.248
External Cites per document	2005	0.233
External Cites per document	2006	0.500
External Cites per document	2007	0.356
External Cites per document	2008	0.228
External Cites per document	2009	0.307
External Cites per document	2010	0.268
External Cites per document	2011	0.242
External Cites per document	2012	0.251
External Cites per document	2013	0.357
External Cites per document	2014	0.391
External Cites per document	2015	0.594
External Cites per document	2016	0.411
External Cites per document	2017	0.525
External Cites per document	2018	0.688
External Cites per document	2019	1.795
External Cites per document	2020	2.571
External Cites per document	2021	2.902
External Cites per document	2022	3.628
External Cites per document	2023	3.927
Cites per document	1999	0.189
Cites per document	2000	0.146
Cites per document	2001	0.169
Cites per document	2002	0.281
Cites per document	2003	0.276
Cites per document	2004	0.416
Cites per document	2005	0.325
Cites per document	2006	0.638
Cites per document	2007	0.438
Cites per document	2008	0.251
Cites per document	2009	0.357
Cites per document	2010	0.297
Cites per document	2011	0.285
Cites per document	2012	0.324
Cites per document	2013	0.442
Cites per document	2014	0.467
Cites per document	2015	0.653
Cites per document	2016	0.421
Cites per document	2017	0.588
Cites per document	2018	0.924
Cites per document	2019	1.930
Cites per document	2020	2.689
Cites per document	2021	3.070
Cites per document	2022	3.829
Cites per document	2023	4.212

% 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	2.27
2000	5.13
2001	0.00
2002	15.09
2003	12.20
2004	8.70
2005	6.41
2006	15.28
2007	15.38
2008	8.06
2009	7.32
2010	6.35
2011	3.23
2012	10.81
2013	11.48
2014	8.96
2015	13.04
2016	19.51
2017	25.53
2018	22.89
2019	23.17
2020	22.78
2021	30.14
2022	36.76
2023	38.72

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	0
Non-citable documents	2003	0
Non-citable documents	2004	0
Non-citable documents	2005	7
Non-citable documents	2006	25
Non-citable documents	2007	32
Non-citable documents	2008	36
Non-citable documents	2009	29
Non-citable documents	2010	31
Non-citable documents	2011	29
Non-citable documents	2012	26
Non-citable documents	2013	24
Non-citable documents	2014	19
Non-citable documents	2015	16
Non-citable documents	2016	15
Non-citable documents	2017	19
Non-citable documents	2018	17
Non-citable documents	2019	11
Non-citable documents	2020	3
Non-citable documents	2021	0
Non-citable documents	2022	0
Non-citable documents	2023	0
Citable documents	1999	73
Citable documents	2000	102
Citable documents	2001	123
Citable documents	2002	114
Citable documents	2003	123
Citable documents	2004	125
Citable documents	2005	156
Citable documents	2006	163
Citable documents	2007	187
Citable documents	2008	179
Citable documents	2009	170
Citable documents	2010	178
Citable documents	2011	178
Citable documents	2012	181
Citable documents	2013	175
Citable documents	2014	178
Citable documents	2015	186
Citable documents	2016	182
Citable documents	2017	158
Citable documents	2018	140
Citable documents	2019	160
Citable documents	2020	209
Citable documents	2021	244
Citable documents	2022	234
Citable documents	2023	288

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	63
Uncited documents	2000	91
Uncited documents	2001	108
Uncited documents	2002	90
Uncited documents	2003	101
Uncited documents	2004	102
Uncited documents	2005	140
Uncited documents	2006	139
Uncited documents	2007	162
Uncited documents	2008	188
Uncited documents	2009	161
Uncited documents	2010	172
Uncited documents	2011	163
Uncited documents	2012	160
Uncited documents	2013	145
Uncited documents	2014	142
Uncited documents	2015	137
Uncited documents	2016	147
Uncited documents	2017	122
Uncited documents	2018	88
Uncited documents	2019	50
Uncited documents	2020	59
Uncited documents	2021	48
Uncited documents	2022	52
Uncited documents	2023	75
Cited documents	1999	11
Cited documents	2000	12
Cited documents	2001	16
Cited documents	2002	24
Cited documents	2003	22
Cited documents	2004	23
Cited documents	2005	23
Cited documents	2006	49
Cited documents	2007	57
Cited documents	2008	27
Cited documents	2009	38
Cited documents	2010	37
Cited documents	2011	44
Cited documents	2012	47
Cited documents	2013	54
Cited documents	2014	55
Cited documents	2015	65
Cited documents	2016	50
Cited documents	2017	55
Cited documents	2018	69
Cited documents	2019	121
Cited documents	2020	153
Cited documents	2021	196
Cited documents	2022	182
Cited documents	2023	213

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