Scimago Journal & Country Rank

SPE Reprint Series

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.

CategoryYearQuartile
Energy Engineering and Power Technology1999Q4
Energy Engineering and Power Technology2000Q4
Energy Engineering and Power Technology2001Q3
Energy Engineering and Power Technology2002Q4
Energy Engineering and Power Technology2003Q4
Energy Engineering and Power Technology2004Q4
Energy Engineering and Power Technology2005Q4
Energy Engineering and Power Technology2006Q4
Energy Engineering and Power Technology2007Q4
Energy Engineering and Power Technology2008Q4
Energy Engineering and Power Technology2009Q4
Energy Engineering and Power Technology2010Q4
Energy Engineering and Power Technology2011Q4
Energy Engineering and Power Technology2012Q4
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.

YearSJR
19990.100
20000.100
20010.103
20020.100
20030.100
20040.100
20050.101
20060.100
20070.100
20080.101
20090.100
20100.100
20110.102
20120.100
Total Documents

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

YearDocuments
199978
200018
20010
200220
200351
200461
20050
200626
20070
200844
200938
20100
20110
20120
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 documentYearValue
Cites / Doc. (4 years)19990.012
Cites / Doc. (4 years)20000.000
Cites / Doc. (4 years)20010.039
Cites / Doc. (4 years)20020.000
Cites / Doc. (4 years)20030.026
Cites / Doc. (4 years)20040.022
Cites / Doc. (4 years)20050.023
Cites / Doc. (4 years)20060.000
Cites / Doc. (4 years)20070.007
Cites / Doc. (4 years)20080.000
Cites / Doc. (4 years)20090.014
Cites / Doc. (4 years)20100.009
Cites / Doc. (4 years)20110.012
Cites / Doc. (4 years)20120.024
Cites / Doc. (3 years)19990.012
Cites / Doc. (3 years)20000.000
Cites / Doc. (3 years)20010.036
Cites / Doc. (3 years)20020.000
Cites / Doc. (3 years)20030.000
Cites / Doc. (3 years)20040.028
Cites / Doc. (3 years)20050.023
Cites / Doc. (3 years)20060.000
Cites / Doc. (3 years)20070.000
Cites / Doc. (3 years)20080.000
Cites / Doc. (3 years)20090.014
Cites / Doc. (3 years)20100.012
Cites / Doc. (3 years)20110.012
Cites / Doc. (3 years)20120.026
Cites / Doc. (2 years)19990.024
Cites / Doc. (2 years)20000.000
Cites / Doc. (2 years)20010.052
Cites / Doc. (2 years)20020.000
Cites / Doc. (2 years)20030.000
Cites / Doc. (2 years)20040.028
Cites / Doc. (2 years)20050.027
Cites / Doc. (2 years)20060.000
Cites / Doc. (2 years)20070.000
Cites / Doc. (2 years)20080.000
Cites / Doc. (2 years)20090.023
Cites / Doc. (2 years)20100.012
Cites / Doc. (2 years)20110.000
Cites / Doc. (2 years)20120.000
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.

CitesYearValue
Self Cites19990
Self Cites20000
Self Cites20010
Self Cites20020
Self Cites20030
Self Cites20040
Self Cites20050
Self Cites20060
Self Cites20070
Self Cites20080
Self Cites20090
Self Cites20100
Self Cites20110
Self Cites20120
Total Cites19992
Total Cites20000
Total Cites20015
Total Cites20020
Total Cites20030
Total Cites20042
Total Cites20053
Total Cites20060
Total Cites20070
Total Cites20080
Total Cites20091
Total Cites20101
Total Cites20111
Total Cites20121
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.

CitesYearValue
External Cites per document19990.016
External Cites per document20000.000
External Cites per document20010.037
External Cites per document20020.000
External Cites per document20030.000
External Cites per document20040.031
External Cites per document20050.024
External Cites per document20060.000
External Cites per document20070.000
External Cites per document20080.000
External Cites per document20090.015
External Cites per document20100.013
External Cites per document20110.013
External Cites per document20120.028
Cites per document19990.012
Cites per document20000.000
Cites per document20010.036
Cites per document20020.000
Cites per document20030.000
Cites per document20040.028
Cites per document20050.023
Cites per document20060.000
Cites per document20070.000
Cites per document20080.000
Cites per document20090.014
Cites per document20100.012
Cites per document20110.012
Cites per document20120.026
% 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.

YearInternational Collaboration
19993.85
20000.00
20010
20020.00
200313.73
200445.90
20050
200646.15
20070
20082.27
200944.74
20100
20110
20120
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.

DocumentsYearValue
Non-citable documents199944
Non-citable documents20000
Non-citable documents20011
Non-citable documents20021
Non-citable documents20032
Non-citable documents20047
Non-citable documents20059
Non-citable documents20068
Non-citable documents20073
Non-citable documents20081
Non-citable documents20093
Non-citable documents20104
Non-citable documents20114
Non-citable documents20122
Citable documents1999123
Citable documents2000161
Citable documents2001136
Citable documents200295
Citable documents200336
Citable documents200464
Citable documents2005123
Citable documents2006104
Citable documents200784
Citable documents200825
Citable documents200967
Citable documents201078
Citable documents201178
Citable documents201236
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.

DocumentsYearValue
Uncited documents1999165
Uncited documents2000161
Uncited documents2001133
Uncited documents200296
Uncited documents200338
Uncited documents200469
Uncited documents2005129
Uncited documents2006112
Uncited documents200787
Uncited documents200826
Uncited documents200969
Uncited documents201081
Uncited documents201181
Uncited documents201237
Cited documents19992
Cited documents20000
Cited documents20014
Cited documents20020
Cited documents20030
Cited documents20042
Cited documents20053
Cited documents20060
Cited documents20070
Cited documents20080
Cited documents20091
Cited documents20101
Cited documents20111
Cited documents20121
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Metrics based on Scopus® data as of April 2021
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