Energy Conversion and Management

Energy Conversion and Management has an open access mirror journal Energy Conversion and Management: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The journal Energy Conversion and Management provides a forum for publishing original contributions and comprehensive technical review articles of interdisciplinary and original research on all important energy topics. The topics considered include energy generation, utilization, conversion, storage, transmission, conservation, management and sustainability. These topics typically involve various types of energy such as mechanical, thermal, nuclear, chemical, electromagnetic, magnetic and electric. These energy types cover all known energy resources, including renewable resources (e.g., solar, bio, hydro, wind, geothermal and ocean energy), fossil fuels and nuclear resources. Papers are welcome that investigate or consider the prospects of energy technologies, devices, systems, materials, processes, operation, performance, maintenance and control. Priority may be given to interdisciplinary energy subjects that deal with advanced technologies and that consider more than one of these methodologies: modeling, experimental, analysis and optimization, with appropriate verifications of the findings.

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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	Q1
Energy Engineering and Power Technology	2000	Q1
Energy Engineering and Power Technology	2001	Q1
Energy Engineering and Power Technology	2002	Q1
Energy Engineering and Power Technology	2003	Q1
Energy Engineering and Power Technology	2004	Q1
Energy Engineering and Power Technology	2005	Q1
Energy Engineering and Power Technology	2006	Q1
Energy Engineering and Power Technology	2007	Q1
Energy Engineering and Power Technology	2008	Q1
Energy Engineering and Power Technology	2009	Q1
Energy Engineering and Power Technology	2010	Q1
Energy Engineering and Power Technology	2011	Q1
Energy Engineering and Power Technology	2012	Q1
Energy Engineering and Power Technology	2013	Q1
Energy Engineering and Power Technology	2014	Q1
Energy Engineering and Power Technology	2015	Q1
Energy Engineering and Power Technology	2016	Q1
Energy Engineering and Power Technology	2017	Q1
Energy Engineering and Power Technology	2018	Q1
Energy Engineering and Power Technology	2019	Q1
Energy Engineering and Power Technology	2020	Q1
Energy Engineering and Power Technology	2021	Q1
Fuel Technology	1999	Q1
Fuel Technology	2000	Q1
Fuel Technology	2001	Q1
Fuel Technology	2002	Q1
Fuel Technology	2003	Q1
Fuel Technology	2004	Q1
Fuel Technology	2005	Q1
Fuel Technology	2006	Q1
Fuel Technology	2007	Q1
Fuel Technology	2008	Q1
Fuel Technology	2009	Q1
Fuel Technology	2010	Q1
Fuel Technology	2011	Q1
Fuel Technology	2012	Q1
Fuel Technology	2013	Q1
Fuel Technology	2014	Q1
Fuel Technology	2015	Q1
Fuel Technology	2016	Q1
Fuel Technology	2017	Q1
Fuel Technology	2018	Q1
Fuel Technology	2019	Q1
Fuel Technology	2020	Q1
Fuel Technology	2021	Q1
Nuclear Energy and Engineering	1999	Q1
Nuclear Energy and Engineering	2000	Q1
Nuclear Energy and Engineering	2001	Q1
Nuclear Energy and Engineering	2002	Q1
Nuclear Energy and Engineering	2003	Q1
Nuclear Energy and Engineering	2004	Q1
Nuclear Energy and Engineering	2005	Q1
Nuclear Energy and Engineering	2006	Q1
Nuclear Energy and Engineering	2007	Q1
Nuclear Energy and Engineering	2008	Q1
Nuclear Energy and Engineering	2009	Q1
Nuclear Energy and Engineering	2010	Q1
Nuclear Energy and Engineering	2011	Q1
Nuclear Energy and Engineering	2012	Q1
Nuclear Energy and Engineering	2013	Q1
Nuclear Energy and Engineering	2014	Q1
Nuclear Energy and Engineering	2015	Q1
Nuclear Energy and Engineering	2016	Q1
Nuclear Energy and Engineering	2017	Q1
Nuclear Energy and Engineering	2018	Q1
Nuclear Energy and Engineering	2019	Q1
Nuclear Energy and Engineering	2020	Q1
Nuclear Energy and Engineering	2021	Q1
Renewable Energy, Sustainability and the Environment	1999	Q2
Renewable Energy, Sustainability and the Environment	2000	Q1
Renewable Energy, Sustainability and the Environment	2001	Q1
Renewable Energy, Sustainability and the Environment	2002	Q1
Renewable Energy, Sustainability and the Environment	2003	Q1
Renewable Energy, Sustainability and the Environment	2004	Q1
Renewable Energy, Sustainability and the Environment	2005	Q1
Renewable Energy, Sustainability and the Environment	2006	Q1
Renewable Energy, Sustainability and the Environment	2007	Q1
Renewable Energy, Sustainability and the Environment	2008	Q1
Renewable Energy, Sustainability and the Environment	2009	Q1
Renewable Energy, Sustainability and the Environment	2010	Q1
Renewable Energy, Sustainability and the Environment	2011	Q1
Renewable Energy, Sustainability and the Environment	2012	Q1
Renewable Energy, Sustainability and the Environment	2013	Q1
Renewable Energy, Sustainability and the Environment	2014	Q1
Renewable Energy, Sustainability and the Environment	2015	Q1
Renewable Energy, Sustainability and the Environment	2016	Q1
Renewable Energy, Sustainability and the Environment	2017	Q1
Renewable Energy, Sustainability and the Environment	2018	Q1
Renewable Energy, Sustainability and the Environment	2019	Q1
Renewable Energy, Sustainability and the Environment	2020	Q1
Renewable Energy, Sustainability and the Environment	2021	Q1

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	0.512
2000	0.590
2001	0.794
2002	1.071
2003	0.879
2004	1.043
2005	1.542
2006	1.294
2007	1.186
2008	1.471
2009	1.302
2010	1.350
2011	1.240
2012	1.674
2013	1.613
2014	1.789
2015	2.023
2016	2.232
2017	2.537
2018	2.730
2019	2.924
2020	2.743
2021	2.829

Total Documents

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

Year	Documents
1999	143
2000	140
2001	158
2002	208
2003	216
2004	212
2005	206
2006	286
2007	329
2008	423
2009	381
2010	363
2011	411
2012	319
2013	615
2014	1002
2015	1093
2016	1007
2017	1058
2018	1159
2019	1257
2020	1124
2021	1143

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	0.423
Cites / Doc. (4 years)	2000	0.470
Cites / Doc. (4 years)	2001	0.599
Cites / Doc. (4 years)	2002	0.898
Cites / Doc. (4 years)	2003	0.983
Cites / Doc. (4 years)	2004	1.280
Cites / Doc. (4 years)	2005	1.700
Cites / Doc. (4 years)	2006	2.021
Cites / Doc. (4 years)	2007	2.296
Cites / Doc. (4 years)	2008	2.658
Cites / Doc. (4 years)	2009	3.142
Cites / Doc. (4 years)	2010	3.485
Cites / Doc. (4 years)	2011	3.761
Cites / Doc. (4 years)	2012	4.198
Cites / Doc. (4 years)	2013	4.999
Cites / Doc. (4 years)	2014	5.689
Cites / Doc. (4 years)	2015	5.742
Cites / Doc. (4 years)	2016	6.243
Cites / Doc. (4 years)	2017	7.010
Cites / Doc. (4 years)	2018	7.804
Cites / Doc. (4 years)	2019	8.809
Cites / Doc. (4 years)	2020	9.727
Cites / Doc. (4 years)	2021	10.966
Cites / Doc. (3 years)	1999	0.423
Cites / Doc. (3 years)	2000	0.513
Cites / Doc. (3 years)	2001	0.595
Cites / Doc. (3 years)	2002	0.932
Cites / Doc. (3 years)	2003	1.010
Cites / Doc. (3 years)	2004	1.249
Cites / Doc. (3 years)	2005	1.785
Cites / Doc. (3 years)	2006	2.041
Cites / Doc. (3 years)	2007	2.170
Cites / Doc. (3 years)	2008	2.445
Cites / Doc. (3 years)	2009	3.037
Cites / Doc. (3 years)	2010	3.312
Cites / Doc. (3 years)	2011	3.505
Cites / Doc. (3 years)	2012	4.178
Cites / Doc. (3 years)	2013	4.807
Cites / Doc. (3 years)	2014	5.714
Cites / Doc. (3 years)	2015	5.623
Cites / Doc. (3 years)	2016	6.305
Cites / Doc. (3 years)	2017	7.095
Cites / Doc. (3 years)	2018	7.953
Cites / Doc. (3 years)	2019	9.073
Cites / Doc. (3 years)	2020	10.023
Cites / Doc. (3 years)	2021	11.071
Cites / Doc. (2 years)	1999	0.449
Cites / Doc. (2 years)	2000	0.447
Cites / Doc. (2 years)	2001	0.530
Cites / Doc. (2 years)	2002	0.886
Cites / Doc. (2 years)	2003	0.918
Cites / Doc. (2 years)	2004	1.205
Cites / Doc. (2 years)	2005	1.766
Cites / Doc. (2 years)	2006	1.938
Cites / Doc. (2 years)	2007	1.801
Cites / Doc. (2 years)	2008	2.285
Cites / Doc. (2 years)	2009	2.695
Cites / Doc. (2 years)	2010	3.027
Cites / Doc. (2 years)	2011	3.267
Cites / Doc. (2 years)	2012	3.806
Cites / Doc. (2 years)	2013	4.756
Cites / Doc. (2 years)	2014	5.331
Cites / Doc. (2 years)	2015	5.696
Cites / Doc. (2 years)	2016	6.266
Cites / Doc. (2 years)	2017	6.984
Cites / Doc. (2 years)	2018	8.029
Cites / Doc. (2 years)	2019	9.167
Cites / Doc. (2 years)	2020	9.964
Cites / Doc. (2 years)	2021	11.057

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	53
Self Cites	2000	64
Self Cites	2001	63
Self Cites	2002	99
Self Cites	2003	104
Self Cites	2004	118
Self Cites	2005	157
Self Cites	2006	151
Self Cites	2007	178
Self Cites	2008	303
Self Cites	2009	368
Self Cites	2010	353
Self Cites	2011	410
Self Cites	2012	625
Self Cites	2013	1215
Self Cites	2014	2351
Self Cites	2015	3272
Self Cites	2016	3954
Self Cites	2017	4387
Self Cites	2018	5017
Self Cites	2019	5825
Self Cites	2020	5791
Self Cites	2021	4443
Total Cites	1999	292
Total Cites	2000	320
Total Cites	2001	287
Total Cites	2002	411
Total Cites	2003	511
Total Cites	2004	727
Total Cites	2005	1135
Total Cites	2006	1294
Total Cites	2007	1528
Total Cites	2008	2007
Total Cites	2009	3152
Total Cites	2010	3753
Total Cites	2011	4090
Total Cites	2012	4826
Total Cites	2013	5254
Total Cites	2014	7686
Total Cites	2015	10887
Total Cites	2016	17087
Total Cites	2017	22009
Total Cites	2018	25114
Total Cites	2019	29252
Total Cites	2020	34820
Total Cites	2021	39192

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	0.347
External Cites per document	2000	0.412
External Cites per document	2001	0.466
External Cites per document	2002	0.709
External Cites per document	2003	0.808
External Cites per document	2004	1.050
External Cites per document	2005	1.543
External Cites per document	2006	1.806
External Cites per document	2007	1.937
External Cites per document	2008	2.096
External Cites per document	2009	2.713
External Cites per document	2010	3.017
External Cites per document	2011	3.170
External Cites per document	2012	3.647
External Cites per document	2013	3.716
External Cites per document	2014	3.981
External Cites per document	2015	3.972
External Cites per document	2016	4.904
External Cites per document	2017	5.764
External Cites per document	2018	6.431
External Cites per document	2019	7.328
External Cites per document	2020	8.407
External Cites per document	2021	9.894
Cites per document	1999	0.423
Cites per document	2000	0.513
Cites per document	2001	0.595
Cites per document	2002	0.932
Cites per document	2003	1.010
Cites per document	2004	1.249
Cites per document	2005	1.785
Cites per document	2006	2.041
Cites per document	2007	2.170
Cites per document	2008	2.445
Cites per document	2009	3.037
Cites per document	2010	3.312
Cites per document	2011	3.505
Cites per document	2012	4.178
Cites per document	2013	4.807
Cites per document	2014	5.714
Cites per document	2015	5.623
Cites per document	2016	6.305
Cites per document	2017	7.095
Cites per document	2018	7.953
Cites per document	2019	9.073
Cites per document	2020	10.023
Cites per document	2021	11.071

% 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	13.99
2000	9.29
2001	15.82
2002	14.42
2003	18.06
2004	16.98
2005	13.11
2006	12.94
2007	16.41
2008	10.87
2009	11.02
2010	13.77
2011	15.09
2012	16.30
2013	18.54
2014	20.66
2015	25.53
2016	26.91
2017	29.87
2018	28.30
2019	32.70
2020	33.90
2021	31.76

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	3
Non-citable documents	2000	3
Non-citable documents	2001	1
Non-citable documents	2002	1
Non-citable documents	2003	2
Non-citable documents	2004	2
Non-citable documents	2005	2
Non-citable documents	2006	1
Non-citable documents	2007	7
Non-citable documents	2008	8
Non-citable documents	2009	12
Non-citable documents	2010	6
Non-citable documents	2011	6
Non-citable documents	2012	3
Non-citable documents	2013	6
Non-citable documents	2014	5
Non-citable documents	2015	19
Non-citable documents	2016	32
Non-citable documents	2017	45
Non-citable documents	2018	33
Non-citable documents	2019	27
Non-citable documents	2020	21
Non-citable documents	2021	28
Citable documents	1999	688
Citable documents	2000	621
Citable documents	2001	481
Citable documents	2002	440
Citable documents	2003	504
Citable documents	2004	580
Citable documents	2005	634
Citable documents	2006	633
Citable documents	2007	697
Citable documents	2008	813
Citable documents	2009	1026
Citable documents	2010	1127
Citable documents	2011	1161
Citable documents	2012	1152
Citable documents	2013	1087
Citable documents	2014	1340
Citable documents	2015	1917
Citable documents	2016	2678
Citable documents	2017	3057
Citable documents	2018	3125
Citable documents	2019	3197
Citable documents	2020	3453
Citable documents	2021	3512

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	505
Uncited documents	2000	433
Uncited documents	2001	318
Uncited documents	2002	249
Uncited documents	2003	257
Uncited documents	2004	270
Uncited documents	2005	242
Uncited documents	2006	213
Uncited documents	2007	217
Uncited documents	2008	219
Uncited documents	2009	263
Uncited documents	2010	272
Uncited documents	2011	248
Uncited documents	2012	165
Uncited documents	2013	132
Uncited documents	2014	99
Uncited documents	2015	137
Uncited documents	2016	159
Uncited documents	2017	144
Uncited documents	2018	101
Uncited documents	2019	104
Uncited documents	2020	96
Uncited documents	2021	105
Cited documents	1999	186
Cited documents	2000	191
Cited documents	2001	164
Cited documents	2002	192
Cited documents	2003	249
Cited documents	2004	312
Cited documents	2005	394
Cited documents	2006	421
Cited documents	2007	487
Cited documents	2008	602
Cited documents	2009	775
Cited documents	2010	861
Cited documents	2011	919
Cited documents	2012	990
Cited documents	2013	961
Cited documents	2014	1246
Cited documents	2015	1799
Cited documents	2016	2551
Cited documents	2017	2958
Cited documents	2018	3057
Cited documents	2019	3120
Cited documents	2020	3378
Cited documents	2021	3435