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Company · Changsha · ??

State Grid Hunan Electric Power Company Limited

In research, State Grid Hunan Electric Power Company Limited stands highest in Physical Sciences (#8,190 of 12,888 worldwide), Engineering (#4,369 of 6,636 worldwide) and Electrical and Electronic Engineering (#2,105 of 2,318 worldwide), 2022–2025. Relative to its size it is most specialised in Control and Systems Engineering, Electrical and Electronic Engineering and Engineering — Control and Systems Engineering is 12.3× its share of world research.

hn.sgcc.com.cnROR OpenAlex
World rank, 2022–2025
#16,046
of 28,054 · #31,989 all time
Rank in ??
#310
of 692
Research works
540
▲ 29778% vs 2013–17
Citations
2k
3.7 per fractional work
Top-10% rate
5.3%
record average 16.5%
Open access
38%
world 28%

What is State Grid Hunan Electric Power Company Limited known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #8,190 of 12,888 5.1%257 #16695
EngineeringField #4,369 of 6,636 4.4%183 #8422
Electrical and Electronic EngineeringSubfield #2,105 of 2,318 4.0%97 #3962

Each strip is that field’s whole ranked pool, with the notch where State Grid Hunan Electric Power Company Limited sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Physical Sciences#16,695 #8,190
  2. Engineering#8,422 #4,369
  3. Electrical and Electronic Engineering#3,962 #2,105
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does State Grid Hunan Electric Power Company Limited specialise in?

Where its research is concentrated relative to its size: Control and Systems Engineering takes 12.3× the share of its output that it takes of world research.

  1. Control and Systems EngineeringSubfield · 35.7 works12×
  2. Electrical and Electronic EngineeringSubfield · 97.2 works10×
  3. EngineeringField · 183.2 works4.6×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.02× its world share, 0 worksAgricultural and Bio…Neuroscience: 0.04× its world share, 0 worksNeuroscienceChemical Engineering: 0.36× its world share, 0 worksChemical EngineeringChemistry: 0.21× its world share, 1 worksChemistryComputer Science: 1.32× its world share, 27 worksComputer ScienceEarth and Planetary Sciences: 0.64× its world share, 3 worksEarth and Planetary …Energy: 7.87× its world share, 19 worksEnergyEngineering: 4.57× its world share, 183 worksEngineeringEnvironmental Science: 0.68× its world share, 9 worksEnvironmental ScienceMaterials Science: 1.23× its world share, 11 worksMaterials ScienceMathematics: 0.02× its world share, 0 worksMathematicsPhysics and Astronomy: 0.50× its world share, 3 worksPhysics and AstronomyHealth Professions: 0.02× its world share, 0 worksHealth ProfessionsMedicine: 0.02× its world share, 1 worksMedicineBusiness, Management and Accounting: 0.28× its world share, 2 worksBusiness, Management…Decision Sciences: 0.98× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.31× its world share, 2 worksEconomics, Econometr…Psychology: 0.02× its world share, 0 worksPsychologySocial Sciences: 0.05× its world share, 2 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Energy, 7.9×. Every wedge is a field page.

Who are the top researchers at State Grid Hunan Electric Power Company Limited?

Ranked on the composite score, Simin Peng, Hengyi Zhou and Zhiqiang Xu lead among researchers whose main affiliation is State Grid Hunan Electric Power Company Limited.

  1. 1 Simin Peng ?? · #389,605 worldwide 99 citations · 24 works
  2. 2 Hengyi Zhou ?? · #1,286,249 worldwide 9 citations · 18 works
  3. 3 Zhiqiang Xu ?? · #1,542,919 worldwide 11 citations · 20 works
All ranked researchers at State Grid Hunan Electric Power Company Limited

Which keywords describe research at State Grid Hunan Electric Power Company Limited?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Renewable Energy, Smart Grid, Power System, Energy Storage, Energy Efficiency, Power Systems, Wind Power and Deep Learning.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Renewable Energy67▲ 17×23 topics
  2. Smart Grid56▲ 56×9 topics
  3. Power System30▲ 125×4 topics
  4. Deep Learning30▲ 3.2×38 topics
  5. Energy Storage23▲ 13×9 topics
  6. Energy Efficiency22▲ 8.6×20 topics
  7. Power Systems21▲ 70×2 topics
  8. Wind Power21▲ 83×4 topics
  9. Environmental Impact20▲ 4.3×9 topics
  10. Machine Learning20▲ 2.2×25 topics
  11. Power Electronics20▲ 22×8 topics
  12. Big Data19▲ 7.7×10 topics
  13. Battery Technology18▲ 24×3 topics
  14. Grid Integration18▲ 64×3 topics
  15. Renewable Energy Integration17▲ 19×5 topics
  16. Cloud Computing17▲ 23×7 topics
  17. Neural Networks16▲ 4.0×14 topics
  18. Frequency Regulation16▲ 102×2 topics
  19. Intelligent Control16▲ 144×2 topics
  20. Photovoltaic Generation15▲ 130×1 topic
  21. Distribution Automation15▲ 219×1 topic
  22. Electric Power15▲ 219×1 topic
  23. HVDC Transmission13▲ 98×2 topics
  24. Fault Detection12▲ 32×3 topics
  25. Distributed Generation12▲ 58×3 topics
  26. Smart Grid Applications12▲ 34×2 topics
  27. Modeling12▲ 17×4 topics
  28. Robotics11▲ 16×3 topics
  29. CIM XML10▲ 154×1 topic
  30. Common Information Model10▲ 154×1 topic
  31. Decentralized Control10▲ 32×2 topics
  32. Voltage Control10▲ 54×2 topics
  33. Energy Storage Systems9▲ 25×2 topics
  34. Wavelet Transform9▲ 15×6 topics
  35. Distributed Power Generation9▲ 33×1 topic
  36. Microgrid Control9▲ 33×1 topic
  37. Game Theory9▲ 20×3 topics
  38. Probabilistic Forecasting9▲ 17×3 topics
  39. Wind Power Integration9▲ 53×2 topics
  40. Short-Term Forecasting8▲ 22×2 topics

Which research topics does State Grid Hunan Electric Power Company Limited publish most on?

By volume in 2022–2025: Power Systems and Renewable Energy, Smart Grid and Power Systems, Power Systems and Technologies and Microgrid Control and Optimization.

Power Systems and Renewable Energy: 15 fractional worksSmart Grid and Power Systems: 15 fractional worksPower Systems and Techno…10Power Systems and Technologies: 10 fractional worksMicrogrid Control and Op…9Microgrid Control and Optimization: 9 fractional worksEnergy Load and Power Forecasting: 8 fractional worksHigh-Voltage Power Transmission Systems: 8 fractional worksSmart Grid Energy Manage…8Smart Grid Energy Management: 8 fractional worksPower Line Inspection Robots: 6 fractional worksHigh voltage insulation and dielectric phenomena: 6 fractional worksHVDC Systems and Fault Protection: 5 fractional works
Energy Engineering and Power TechnologyElectrical and Electronic EngineeringControl and Systems EngineeringMechanical Engineering1 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Power Systems and Renewable Energy Energy Engineering and Power Technology 15 works
  2. 2 Smart Grid and Power Systems Electrical and Electronic Engineering 15 works
  3. 3 Power Systems and Technologies Electrical and Electronic Engineering 10 works
  4. 4 Microgrid Control and Optimization Control and Systems Engineering 9 works
  5. 5 Energy Load and Power Forecasting Electrical and Electronic Engineering 8 works
  6. 6 High-Voltage Power Transmission Systems Electrical and Electronic Engineering 8 works
  7. 7 Smart Grid Energy Management Electrical and Electronic Engineering 8 works
  8. 8 Power Line Inspection Robots Mechanical Engineering 6 works
  9. 9 High voltage insulation and dielectric phenomena Materials Chemistry 6 works
  10. 10 HVDC Systems and Fault Protection Electrical and Electronic Engineering 5 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available38.4%not open61.6%

World: 28% of research is openly available.

with international co-authors3.1%domestic only96.9%

World: 19% is written across borders.

How has State Grid Hunan Electric Power Company Limited's research output changed?

Output in 2018–2022 was 29778% higher than in 2013–2017.

2020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Changsha

All research institutions in Changsha

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.