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Bibliometric Network Densification Patterns forThree Renewable Energy Technologies
E. Boelman, T. Telsnig, R. Shortall, G. Bardizza, A. Villalba Pradas
with thanks to G. Joanny, O. Eulaerts, N. Taylor
European Commission, Joint Research Centre
The European Commission’s scienceand knowledge service
Joint Research Centre
supporting European Union policies with
independent evidence
throughout the whole policy cycle
TEXT MINING AND ANALYSIS
MODELLING FORESIGHT …
FOODPOLICY
REGIONALPOLICY
... EU POLICIES
COMPETENCES
ENERGYPOLICY
http://timanalytics.eu/
JRC Competence Centres
JRC coordinates 'SETIS', an Information System
for strategic planning and priority settingin Strategic Energy Technologies:
• Implementation progress
• Global technology and market developments
• Dissemination portal
https://setis.ec.europa.eu
Knowledge management for the EU Energy Union
Aim
• explore/illustrate use of densification (network theory metric) to shed light into technology evolution
Approach
• use JRC Tools for Innovation monitoring (TIM) software
• bibliometric & network analysis on Scopus publications
Aim and approach of this work
Technology Search field Period(publications retrieved)
Authorship
counts
Entity counts
Wind energy Offshore support structures 2002-2015 1730 620
Wind energy Blades 1996-2015 8510 2430
Solar PV cells Perovskites 1999-2015 3380 1350
Solar PV cells Dye sensitised (DSSC) 2001-2015 10850 2770
Geothermal
energy
Enhanced Geothermal
Systems
1996-2015 1090 540
Search string example: ti_abs_key: ("enhanced geothermal system" OR "hot dry rock")
Search string example: ti_abs_key: (("support structure" OR "monopile" OR "jacket structure" OR "floating"
OR … OR … ) AND "offshore wind")
Scope: three renewable energy technologies
Technology Search field Period(all searches: 1996-2015)
Authorship
counts
Entity counts
Wind energy Offshore support structures 2002-2015 1730 620
Wind energy Blades 1996-2015 8510 2430
Solar PV cells Perovskites 1999-2015 3380 1160
Solar PV cells Dye sensitised (DSSC) 2001-2015 10850 2770
Geothermal
energy
Enhanced Geothermal
Systems
1996-2015 1090 540
Blades
2430 organisationsEGS
540 organisations
http://iea-gia.org/wp-content/uploads/2012/08/Korean-EGS-Project-Song-16Aug12.jpg
Publication patterns for two technologies
Wind energy -
network densification
Offshore Wind Energy
2430 organisations
Blades
New entrants - 1st retrieval of a publication by a new organisation, cumulated yearly counts (nodes)
Co
lla
bo
rati
on
in
ten
sity
-co
-au
tho
rsh
ips,
cu
mu
late
d y
ea
rly
co
un
ts (
ed
ge
s)
620 organisations
Support Structures
EGS & Perov - network densification
540 organisations
Enhanced Geothermal
1350 organisations
PV Perovskite (thin film solar cells)
DSSC & Perov - network densification
PV Dye Sensitised
Photovoltaic (PV)solar cells
0
500
1000
1500
2000
2500
1995 2000 2005 2010 2015
Yea
rly
au
tho
rsh
ip c
ou
nts
0
500
1000
1500
2000
2500
1995 2000 2005 2010 2015
Yea
rly
au
tho
rsh
ip c
ou
nts PV Perovskite
incubation period
1st 'solar cell' publication
Switch to Perovskites
EGS - network densification
http://iea-gia.org/wp-content/uploads/2012/08/Korean-EGS-Project-Song-16Aug12.jpg
Enhanced Geothermal Systems
New entrants - 1st retrieval of a publication by a new organisation, cumulated yearly counts (nodes)
Co
lla
bo
rati
on
in
ten
sity
-co
-au
tho
rsh
ips,
cu
mu
late
d y
ea
rly
co
un
ts (
ed
ge
s)
0
50
100
150
200
1995 2000 2005 2010 2015Ye
arl
y a
uth
ors
hip
co
un
ts
New renewable
energy laws (DE)
Cooper basin
starts (AU)
Induced
seismicity
(Basel project
abandoned)
1st binary
EGS plant,
Soultz (FR)
• JRC is developing TIM and building institutional capacity in applications of text mining and network analysis for policy support
• Our network theory & bibliometric analysis results provided potentially relevant metrics for gauging technological development stages
Final remarks – analysis
• Densification patterns for three renewable energy technologies in line with their developmental stages
• Technology granularity levels and approach potentially applicable to wider ranges of upcoming renewable energy technologies
Final remarks – results
