Class information for:
Level 1: ENERGY PAYBACK TIME//PV ENVIRONM//PHOTOVOLTA ENVIRONM

Basic class information

ID Publications Average number
of references
Avg. shr. active
ref. in WoS
14494 700 35.5 31%



Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)



ID, lev.
above
Publications Label for level above
314 17607 RENEWABLE ENERGY//WIND ENERGY//RENEWABLE & SUSTAINABLE ENERGY REVIEWS

Terms with highest relevance score



Rank Term Type of term Relevance score
(tfidf)
Class's shr.
of term's tot.
occurrences
Shr. of publ.
in class containing
term
Num. of
publ. in
class
1 ENERGY PAYBACK TIME Author keyword 19 56% 3% 23
2 PV ENVIRONM Address 8 70% 1% 7
3 PHOTOVOLTA ENVIRONM Address 7 67% 1% 6
4 LIFE CYCLE ANAL Address 6 41% 2% 12
5 ENERGY YIELD RATIO Author keyword 4 75% 0% 3
6 ENERGY PAY BACK TIME Author keyword 3 39% 1% 7
7 ENERGY PAYBACK Author keyword 3 42% 1% 5
8 CADMIUM TELLURIDE PHOTOVOLTAICS Author keyword 2 67% 0% 2
9 COMBISYSTEM Author keyword 2 67% 0% 2
10 ENVIRONM WASTE TECHNOL GRP Address 2 67% 0% 2

Web of Science journal categories

Author Key Words



Rank Web of Science journal category Relevance score
(tfidf)
Class's shr.
of term's tot.
occurrences
Shr. of publ.
in class containing
term
Num. of
publ. in
class
LCSH search Wikipedia search
1 ENERGY PAYBACK TIME 19 56% 3% 23 Search ENERGY+PAYBACK+TIME Search ENERGY+PAYBACK+TIME
2 ENERGY YIELD RATIO 4 75% 0% 3 Search ENERGY+YIELD+RATIO Search ENERGY+YIELD+RATIO
3 ENERGY PAY BACK TIME 3 39% 1% 7 Search ENERGY+PAY+BACK+TIME Search ENERGY+PAY+BACK+TIME
4 ENERGY PAYBACK 3 42% 1% 5 Search ENERGY+PAYBACK Search ENERGY+PAYBACK
5 CADMIUM TELLURIDE PHOTOVOLTAICS 2 67% 0% 2 Search CADMIUM+TELLURIDE+PHOTOVOLTAICS Search CADMIUM+TELLURIDE+PHOTOVOLTAICS
6 COMBISYSTEM 2 67% 0% 2 Search COMBISYSTEM Search COMBISYSTEM
7 TURBINE MATERIALS 2 67% 0% 2 Search TURBINE+MATERIALS Search TURBINE+MATERIALS
8 ENERGY PAYBACK TIME EPBT 2 50% 0% 3 Search ENERGY+PAYBACK+TIME+EPBT Search ENERGY+PAYBACK+TIME+EPBT
9 CLEAN ENERGY SUPPLY 1 100% 0% 2 Search CLEAN+ENERGY+SUPPLY Search CLEAN+ENERGY+SUPPLY
10 CO2 PAYBACK TIME CO2PBT 1 100% 0% 2 Search CO2+PAYBACK+TIME+CO2PBT Search CO2+PAYBACK+TIME+CO2PBT

Key Words Plus



Rank Web of Science journal category Relevance score
(tfidf)
Class's shr.
of term's tot.
occurrences
Shr. of publ.
in class containing
term
Num. of
publ. in
class
1 PAY BACK TIME 25 65% 3% 24
2 ENERGY PAYBACK 20 62% 3% 21
3 PAYBACK TIME 7 67% 1% 6
4 PHOTOVOLTAIC ELECTRICITY GENERATION 6 71% 1% 5
5 EVALUATING OPTIONS 5 63% 1% 5
6 PV SYSTEMS 4 12% 5% 33
7 MATERIALS AVAILABILITY 3 24% 1% 10
8 SOLAR THERMAL COLLECTOR 3 50% 1% 4
9 ANDERSON LIABILITY LIMIT 3 60% 0% 3
10 GREENHOUSE PROBLEM 2 67% 0% 2

Journals

Reviews



Title Publ. year Cit. Active
references
% act. ref.
to same field
Review on life cycle assessment of energy payback and greenhouse gas emission of solar photovoltaic systems 2013 57 54 81%
A review of Safety, Health and Environmental (SHE) issues of solar energy system 2015 4 54 52%
Life cycle assessment (LCA) of electricity generation technologies: Overview, comparability and limitations 2013 28 48 65%
Life cycle assessment of electricity production from renewable energies: Review and results harmonization 2015 1 33 79%
Life Cycle Greenhouse Gas Emissions of Thin-film Photovoltaic Electricity Generation 2012 28 16 88%
Life cycle assessment of solar PV based electricity generation systems: A review 2010 67 20 80%
Life Cycle Greenhouse Gas Emissions of Nuclear Electricity Generation 2012 22 14 86%
Life Cycle Greenhouse Gas Emissions of Utility-Scale Wind Power 2012 20 24 92%
Life cycle greenhouse gas (GHG) emissions from the generation of wind and hydro power 2011 28 16 100%
Life Cycle Greenhouse Gas Emissions of Crystalline Silicon Photovoltaic Electricity Generation 2012 24 27 74%

Address terms



Rank Address term Relevance score
(tfidf)
Class's shr.
of term's tot.
occurrences
Shr. of publ.
in class containing
term
Num. of
publ. in
class
1 PV ENVIRONM 8 70% 1.0% 7
2 PHOTOVOLTA ENVIRONM 7 67% 0.9% 6
3 LIFE CYCLE ANAL 6 41% 1.7% 12
4 ENVIRONM WASTE TECHNOL GRP 2 67% 0.3% 2
5 IFEU 2 67% 0.3% 2
6 PV EHS 2 67% 0.3% 2
7 SYST SAFETY ANAL SECT 2 67% 0.3% 2
8 ENERGIA DESARROLLO SUSTENTABLE 2 50% 0.4% 3
9 PL IQUI CONICET 2 50% 0.4% 3
10 ENERGY SYST ECON 1 100% 0.3% 2

Related classes at same level (level 1)



Rank Relatedness score Related classes
1 0.0000131218 TRADABLE GREEN CERTIFICATES//FEED IN TARIFF//RENEWABLE ENERGY POLICY
2 0.0000118594 INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT//LIFE CYCLE IMPACT ASSESSMENT//SOCIAL LIFE CYCLE ASSESSMENT
3 0.0000108440 COMPRESSED AIR ENERGY STORAGE CAES//COMPRESSED AIR ENERGY STORAGE//CAES
4 0.0000107258 PHOTOVOLTAIC THERMAL//HYBRID SOLAR COLLECTOR//BIPV
5 0.0000107026 THERMOPOWER PLANTS//BIODIVERSITY QUALITY//ECOLOGICAL EFFICIENCY
6 0.0000103324 PEAK OIL//EROI//PEAK COAL
7 0.0000092411 DYNAMIC MATERIAL FLOW ANALYSIS//SUBSTANCE FLOW ANALYSIS//IN USE STOCK
8 0.0000088069 INT SECUR STUDIES MARYLAND//NUCLEAR FUEL CYCLE COST//NUCLEAR FUEL CYCLES
9 0.0000078145 MULTI REGIONAL INPUT OUTPUT ANALYSIS//INPUT OUTPUT ANALYSIS//EMISSIONS EMBODIED IN TRADE
10 0.0000073249 TRACKED PANEL//OPTIMUM TILT ANGLE//SUN TRACKING SYSTEM