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Spain Engineering & Technology / Energy Engineering 83 Scientists Subject Rankings
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 05, 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 (1.131.911) 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].
* Total H Index Rankings
Rankings
25,332
World Rank
549
Country Rank
3
University
Ranking Based On Selection:
1
* Total H Index Rankings
Rankings
30,928
World Rank
676
Country Rank
5
University
Ranking Based On Selection:
2
Engineering & Technology / Energy Engineering
energy | solar cells | nanomaterials | photochemistry | photo-induced charge transfe
energy | solar cells | nanomaterials | photochemistry | photo-induced charge transfe
H-Index Metrics
-
H-Index74
-
i10 Index234
-
Citation Counts22,954
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* Total H Index Rankings
Rankings
60,638
World Rank
1,479
Country Rank
36
University
Ranking Based On Selection:
3
Engineering & Technology / Energy Engineering
Energy | Exergy | Resources Efficiency | Thermodynamics | Themoeconomic
Energy | Exergy | Resources Efficiency | Thermodynamics | Themoeconomic
H-Index Metrics
-
H-Index59
-
i10 Index202
-
Citation Counts15,591
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* Total H Index Rankings
Rankings
73,047
World Rank
1,869
Country Rank
53
University
Ranking Based On Selection:
4
Engineering & Technology / Energy Engineering
Automatic Control | Renewable energy | Model Predictive Control | Microgrids | Fuel Cell
Automatic Control | Renewable energy | Model Predictive Control | Microgrids | Fuel Cell
H-Index Metrics
-
H-Index55
-
i10 Index119
-
Citation Counts21,642
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* Total H Index Rankings
Rankings
76,044
World Rank
1,968
Country Rank
57
University
Ranking Based On Selection:
5
Engineering & Technology / Energy Engineering
Energy | power generation | renewables | cogeneration | energy storag
Energy | power generation | renewables | cogeneration | energy storag
H-Index Metrics
-
H-Index54
-
i10 Index131
-
Citation Counts8,569
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* Total H Index Rankings
Rankings
126,826
World Rank
3,671
Country Rank
48
University
Ranking Based On Selection:
6
Engineering & Technology / Energy Engineering
energy | sustainability | mathematical programming | life cycle assessment | refrigeratio
energy | sustainability | mathematical programming | life cycle assessment | refrigeratio
H-Index Metrics
-
H-Index44
-
i10 Index74
-
Citation Counts5,749
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* Total H Index Rankings
Rankings
140,987
World Rank
4,130
Country Rank
122
University
Ranking Based On Selection:
7
Engineering & Technology / Energy Engineering
Solid state chemistry | photovoltaics | solar energy conversion | perovskite
Solid state chemistry | photovoltaics | solar energy conversion | perovskite
H-Index Metrics
-
H-Index42
-
i10 Index67
-
Citation Counts11,730
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* Total H Index Rankings
Rankings
145,340
World Rank
4,314
Country Rank
121
University
Ranking Based On Selection:
8
Engineering & Technology / Energy Engineering
Solar cells | semiconductors | thin films | materials scienc
Solar cells | semiconductors | thin films | materials scienc
H-Index Metrics
-
H-Index42
-
i10 Index84
-
Citation Counts4,589
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* Total H Index Rankings
Rankings
155,374
World Rank
4,648
Country Rank
12
University
Ranking Based On Selection:
9
Engineering & Technology / Energy Engineering
solar cells | photovoltaics | renewable energy | perovskite solar cells | impedance spectroscop
solar cells | photovoltaics | renewable energy | perovskite solar cells | impedance spectroscop
H-Index Metrics
-
H-Index40
-
i10 Index56
-
Citation Counts7,454
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* Total H Index Rankings
Rankings
165,041
World Rank
5,000
Country Rank
37
University
Ranking Based On Selection:
10
* Total H Index Rankings
Rankings
175,036
World Rank
5,342
Country Rank
12
University
Ranking Based On Selection:
11
Engineering & Technology / Energy Engineering
Modeling and simulation | Discrete event systems | Industry 4.0 | Renewable energy | Environmental impac
Modeling and simulation | Discrete event systems | Industry 4.0 | Renewable energy | Environmental impac
H-Index Metrics
-
H-Index38
-
i10 Index109
-
Citation Counts5,015
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* Total H Index Rankings
Rankings
186,766
World Rank
5,759
Country Rank
54
University
Ranking Based On Selection:
12
Engineering & Technology / Energy Engineering
Renewable Energy | Power System Control | Energy Storage Systems | HVD
Renewable Energy | Power System Control | Energy Storage Systems | HVD
H-Index Metrics
-
H-Index37
-
i10 Index68
-
Citation Counts6,726
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* Total H Index Rankings
Rankings
191,925
World Rank
5,982
Country Rank
102
University
Ranking Based On Selection:
13
Engineering & Technology / Energy Engineering
Industrial Electronics | Power Electronics | Lighting Engineering | Renewable Energy | Energy Conversio
Industrial Electronics | Power Electronics | Lighting Engineering | Renewable Energy | Energy Conversio
H-Index Metrics
-
H-Index37
-
i10 Index92
-
Citation Counts4,242
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* Total H Index Rankings
Rankings
199,453
World Rank
6,205
Country Rank
49
University
Ranking Based On Selection:
14
Engineering & Technology / Energy Engineering
solar energy | wind energy | solar radiation | digital elevation models | renewable energ
solar energy | wind energy | solar radiation | digital elevation models | renewable energ
H-Index Metrics
-
H-Index37
-
i10 Index49
-
Citation Counts4,616
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* Total H Index Rankings
Rankings
199,549
World Rank
6,212
Country Rank
128
University
Ranking Based On Selection:
15
* Total H Index Rankings
Rankings
202,800
World Rank
6,352
Country Rank
166
University
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
206,058
World Rank
6,415
Country Rank
25
University
Ranking Based On Selection:
17
Engineering & Technology / Energy Engineering
Wind energy | PV power plants | renewable energy integration | energy efficienc
Wind energy | PV power plants | renewable energy integration | energy efficienc
H-Index Metrics
-
H-Index35
-
i10 Index110
-
Citation Counts5,476
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* Total H Index Rankings
Rankings
207,653
World Rank
6,458
Country Rank
65
University
Ranking Based On Selection:
18
Engineering & Technology / Energy Engineering
Concentrating Solar Power | Solar Energy | Renewable Energ
Concentrating Solar Power | Solar Energy | Renewable Energ
H-Index Metrics
-
H-Index35
-
i10 Index96
-
Citation Counts3,911
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* Total H Index Rankings
Rankings
224,720
World Rank
7,096
Country Rank
273
University
Ranking Based On Selection:
19
Engineering & Technology / Energy Engineering
identification | predictive control | neural networks | renewable energy | induction machine
identification | predictive control | neural networks | renewable energy | induction machine
H-Index Metrics
-
H-Index34
-
i10 Index59
-
Citation Counts3,789
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* Total H Index Rankings
Rankings
233,253
World Rank
7,392
Country Rank
9
University
Ranking Based On Selection:
20
* Total H Index Rankings
Rankings
243,258
World Rank
7,779
Country Rank
97
University
Ranking Based On Selection:
21
* Total H Index Rankings
Rankings
246,719
World Rank
7,878
Country Rank
10
University
Ranking Based On Selection:
22
Engineering & Technology / Energy Engineering
Energy | Thermal energy storage | Physics of phase transition
Energy | Thermal energy storage | Physics of phase transition
H-Index Metrics
-
H-Index32
-
i10 Index82
-
Citation Counts4,546
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* Total H Index Rankings
Rankings
256,150
World Rank
8,262
Country Rank
8
University
Ranking Based On Selection:
23
Engineering & Technology / Energy Engineering
Carbon Capture | CCUS | Energy storage | Renewable energy | Power productio
Carbon Capture | CCUS | Energy storage | Renewable energy | Power productio
H-Index Metrics
-
H-Index31
-
i10 Index51
-
Citation Counts3,597
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* Total H Index Rankings
Rankings
268,926
World Rank
8,697
Country Rank
48
University
Ranking Based On Selection:
24
* Total H Index Rankings
Rankings
272,962
World Rank
8,817
Country Rank
375
University
Ranking Based On Selection:
25
Engineering & Technology / Energy Engineering
Control of HVDC Systems | MT-HVDC | RES Grid Integration | Power System Dynamic
Control of HVDC Systems | MT-HVDC | RES Grid Integration | Power System Dynamic
H-Index Metrics
-
H-Index30
-
i10 Index74
-
Citation Counts3,501
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Premium Data
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