Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 18 Scientists Citation Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
South Africa
Crystal Meek
Business Administartion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,734
184
0.067
* Total Citation Counts Rankings
Ranking Based On Selection: 2
South Africa
Nhlanhla Mbuli
Power Systems
System Planning
System Performance
Statistics
Operations Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
398
290
0.729
* Total Citation Counts Rankings
Ranking Based On Selection: 3
South Africa
Rob Stephen
Overhead lines
FACTS
Smartgrid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
330
134
0.406
* Total Citation Counts Rankings
Ranking Based On Selection: 4
South Africa
Ulrich Minnaar
electrical engineering
power systems
power quality
renewable energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
254
138
0.543
* Total Citation Counts Rankings
Ranking Based On Selection: 5
South Africa
Susara Elizabeth Van Der Merwe|Liza van der Merwe
complexity thinking
resilience thinking
systems thinking
spatial intelligence
ambidexterity between complicated & complex ap
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
253
229
0.905
* Total Citation Counts Rankings
Ranking Based On Selection: 6
South Africa
Andreas Beutel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144
55
0.382
* Total Citation Counts Rankings
Ranking Based On Selection: 7
South Africa
Malcolm Van Harte
Infrastructure Planning
System Operation
Reliability
Power System Resilience
Blackout
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
118
89
0.754
* Total Citation Counts Rankings
Ranking Based On Selection: 8
South Africa
Warren James Farmer
Power system frequency stability
Virtual inertia
Renewable energy integration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
114
113
0.991
* Total Citation Counts Rankings
Ranking Based On Selection: 9
South Africa
Christiaan Erasmus
Engineering
stress analysis
nuclear graphite
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80
21
0.263

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* Total Citation Counts Rankings
Ranking Based On Selection: 10
South Africa
Christopher Booysen
Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65
31
0.477
* Total Citation Counts Rankings
Ranking Based On Selection: 11
South Africa
Darcelle Schouw
global health
non communicable diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38
34
0.895
* Total Citation Counts Rankings
Ranking Based On Selection: 12
South Africa
Bongumsa Mendu
Application of Statistics and AI Algorithms for Power System Big Data Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29
29
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 13
South Africa
Nyiko Baloyi
Green Hydrogen
Renewable Technologies
Gas
Intelligent Control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19
9
0.474
* Total Citation Counts Rankings
Ranking Based On Selection: 14
South Africa
Richard Smith
nuclear quality management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19
7
0.368
* Total Citation Counts Rankings
Ranking Based On Selection: 15
South Africa
Corne Du Plooy
System Dynamics
Engineering
Simulation
Systems Thinking
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
* Total Citation Counts Rankings
Ranking Based On Selection: 16
South Africa
Rudolph B Van Buuren
Project Management
Project Finance
Strategy Implementation
Investment Monitoring
Pricing theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
0
0.000
* Total Citation Counts Rankings
Ranking Based On Selection: 17
South Africa
Fanie Alan Shisane
Fourth Industrial Revolution (IoT
Cloud computing
Fog computing and AI)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 18
South Africa
Monde Soni
Battery energy storage system applications
Distribution power system network
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total Citation Counts Rankings
Rankings
358,792
South Africa
1,625
1
Ranking Based On Selection: 1
Crystal Meek
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,734
184
0.067
* Total Citation Counts Rankings
Rankings
1,032,678
South Africa
5,908
2
Ranking Based On Selection: 2
Nhlanhla Mbuli
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
398
290
0.729
Power Systems
System Planning
System Performance
Statistics
Operations Research
* Total Citation Counts Rankings
Rankings
1,109,951
South Africa
6,570
3
Ranking Based On Selection: 3
Rob Stephen
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
330
134
0.406
Overhead lines
FACTS
Smartgrid
* Total Citation Counts Rankings
Rankings
1,224,325
South Africa
7,520
4
Ranking Based On Selection: 4
Ulrich Minnaar
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
254
138
0.543
electrical engineering
power systems
power quality
renewable energy
* Total Citation Counts Rankings
Rankings
1,225,323
South Africa
7,531
5
Ranking Based On Selection: 5
Susara Elizabeth Van Der Merwe|Liza van der Merwe
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
253
229
0.905
complexity thinking
resilience thinking
systems thinking
spatial intelligence
ambidexterity between complicated & complex ap
* Total Citation Counts Rankings
Rankings
1,501,300
South Africa
9,769
6
Ranking Based On Selection: 6
Andreas Beutel
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144
55
0.382
* Total Citation Counts Rankings
Rankings
1,598,793
South Africa
10,502
7
Ranking Based On Selection: 7
Malcolm Van Harte
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
118
89
0.754
Infrastructure Planning
System Operation
Reliability
Power System Resilience
Blackout
* Total Citation Counts Rankings
Rankings
1,613,799
South Africa
10,612
8
Ranking Based On Selection: 8
Warren James Farmer
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
114
113
0.991
Power system frequency stability
Virtual inertia
Renewable energy integration
* Total Citation Counts Rankings
Rankings
1,782,941
South Africa
11,871
9
Ranking Based On Selection: 9
Christiaan Erasmus
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80
21
0.263
Engineering
stress analysis
nuclear graphite
* Total Citation Counts Rankings
Rankings
1,872,445
South Africa
12,559
10
Ranking Based On Selection: 10
Christopher Booysen
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65
31
0.477

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Total Citation Counts Rankings
Rankings
2,069,287
South Africa
14,226
11
Ranking Based On Selection: 11
Darcelle Schouw
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38
34
0.895
global health
non communicable diseases
* Total Citation Counts Rankings
Rankings
2,147,807
South Africa
14,919
12
Ranking Based On Selection: 12
Bongumsa Mendu
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29
29
1.000
Application of Statistics and AI Algorithms for Power System Big Data Analysis
* Total Citation Counts Rankings
Rankings
2,267,721
South Africa
15,986
13
Ranking Based On Selection: 13
Nyiko Baloyi
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19
9
0.474
Green Hydrogen
Renewable Technologies
Gas
Intelligent Control
* Total Citation Counts Rankings
Rankings
2,268,312
South Africa
15,991
14
Ranking Based On Selection: 14
Richard Smith
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19
7
0.368
nuclear quality management
* Total Citation Counts Rankings
Rankings
2,359,135
South Africa
16,870
15
Ranking Based On Selection: 15
Corne Du Plooy
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
System Dynamics
Engineering
Simulation
Systems Thinking
* Total Citation Counts Rankings
Rankings
2,546,405
South Africa
18,809
16
Ranking Based On Selection: 16
Rudolph B Van Buuren
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
0
0.000
Project Management
Project Finance
Strategy Implementation
Investment Monitoring
Pricing theory
* Total Citation Counts Rankings
Rankings
2,551,473
South Africa
18,845
17
Ranking Based On Selection: 17
Fanie Alan Shisane
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Fourth Industrial Revolution (IoT
Cloud computing
Fog computing and AI)
* Total Citation Counts Rankings
Rankings
2,551,473
South Africa
18,845
17
Ranking Based On Selection: 18
Monde Soni
Eskom Sunninghill, South Africa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Battery energy storage system applications
Distribution power system network