The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 5 years. As of Jan 03, 2026, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.131.752) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
Rankings
Rankings
Advanced Energy Systems | Renewable Energy | Energy Transition | Multidisciplinarit
H-Index Metrics
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H-Index85
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i10 Index360
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Citation Counts28,603
Rankings
Rankings
Energy systems modelling | Renewable Energy | Energy Transition | Sustainabilit
H-Index Metrics
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H-Index42
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i10 Index61
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Citation Counts8,247
Rankings
solar cell | fuel cell | lithium ion battery | pico grid syste
H-Index Metrics
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H-Index33
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i10 Index65
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Citation Counts4,030
Rankings
Energy modelling | Energy Scenarios | Renewable Energy Technologies | Sustainability | Storage Technologie
H-Index Metrics
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H-Index31
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i10 Index40
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Citation Counts6,202
Rankings
Renewable Energy Materials | Hydrogen Generation | Surface Engineering | nanocatalysis | photoelectrochemistr
H-Index Metrics
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H-Index27
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i10 Index47
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Citation Counts2,483
Rankings
solar fuel production | atomic layer deposition | surface science | synchrotron ligh
H-Index Metrics
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H-Index25
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i10 Index41
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Citation Counts2,097
Rankings
Rankings
Energy Technology | Renewable Energy | Sustainable Biomass Utilisatio
H-Index Metrics
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H-Index21
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i10 Index27
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Citation Counts1,650
Rankings
Energy storage | turbomachinery | renewable energy | heat recovery | CF
H-Index Metrics
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H-Index20
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i10 Index44
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Citation Counts1,407
Rankings
CFD | Thermal Eng. | Multiphase flow | ML | Fluid system
H-Index Metrics
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H-Index19
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i10 Index30
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Citation Counts1,658
Rankings
Anaerobic digestion | biogas | renewable energy | nutrient recycling | circular econom
H-Index Metrics
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H-Index18
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i10 Index30
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Citation Counts1,780
Rankings
futures research | environmental policy | renewable energy | bioeconom
H-Index Metrics
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H-Index15
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i10 Index16
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Citation Counts1,468
Rankings
kinetic roughening | renewable energy | experiental learnin
H-Index Metrics
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H-Index11
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i10 Index13
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Citation Counts715
Rankings
Renewable Energy | Energy Storage | Process Integration | Computer Simulatio
H-Index Metrics
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H-Index7
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i10 Index7
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Citation Counts233
Rankings
Wave energy | desalination | fresh water production | renewable energ
H-Index Metrics
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H-Index2
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i10 Index1
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Citation Counts35
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