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Topic · Electrical and Electronic Engineering

Integrated Energy Systems Optimization

Integrated Energy Systems Optimization is a research topic within Electrical and Electronic Engineering. Science Explorer counts 27k research works in it since 1950. 10.0% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the integration of renewable energy systems, including wind, water, and solar power, into existing power grids. It covers topics such as district heating, electricity storage, energy modeling, power grid flexibility, and the transition towards decarbonized energy systems.

  • Renewable Energy
  • Energy Systems
  • District Heating
  • Electricity Storage
  • Energy Modeling
  • Wind Power Integration
  • Smart Energy Systems
  • Power Grid Flexibility
  • Energy Transition
  • Decarbonization
Research works
27k
fractional, since 1950
In the world top 10%
2.7k
per year above
Top-10% rate
10.0%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+70%
the tick is no change
Largest producer
China
56% of the 10 largest, 2022-now
Integrated Energy Systems Optimization

Which countries lead Integrated Energy Systems Optimization research?

By volume, China and the United States publish the most (4.7k and 851 works in 2022-now).

By volume, 2022-now

  1. 1 China 4.7k works
  2. 2 United States 851 works
  3. 3 Germany 656 works
  4. 4 United Kingdom 472 works
  5. 5 India 431 works
  6. 6 Italy 401 works
  7. 7 Iran 301 works
  8. 8 Spain 216 works
  9. 9 Türkiye 213 works
  10. 10 Denmark 208 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 55.8%United States: 10.0%Germany: 7.7%United Kingdom: 5.6%6 others listed: 20.9%56%largest
China4,727 · 55.8%United States851 · 10.0%Germany656 · 7.7%United Kingdom472 · 5.6%6 others listed1,770 · 20.9%

Shares of the rows listed above, not of the whole node.

Which institutions lead Integrated Energy Systems Optimization research?

By volume in 2022-now, North China Electric Power University publishes the most Integrated Energy Systems Optimization research, followed by State Grid Corporation of China (China) and Shanghai Electric (China).

By volume, 2022-now

  1. 1 North China Electric Power UniversityChina 349 works
  2. 2 State Grid Corporation of China (China)China 229 works
  3. 3 Shanghai Electric (China)China 140 works
  4. 4 Tsinghua UniversityChina 140 works
  5. 5 Xi'an Jiaotong UniversityChina 126 works
  6. 6 China Southern Power Grid (China)China 102 works
  7. 7 Zhejiang UniversityChina 94 works
  8. 8 Southeast UniversityChina 88 works
  9. 9 Helmholtz Association of German Research CentresGermany 87 works
  10. 10 Shandong UniversityChina 79 works

Who are the leading researchers in Integrated Energy Systems Optimization?

The most-cited researchers publishing on Integrated Energy Systems Optimization include Zhong Lin Wang, Yi Ping Cui and Philippe Ciais.

  1. 1 Zhong Lin Wang United States 491k citations
  2. 2 Yi Ping Cui United States 261k citations
  3. 3 Philippe Ciais France 237k citations
  4. 4 Kai You Wang China 224k citations
  5. 5 Lei Jiang China 214k citations
  6. 6 Frede Blaabjerg Denmark 203k citations
  7. 7 Qiang Zhang China 184k citations
  8. 8 H. Vincent Poor United States 165k citations
  9. 9 Han Zhang China 161k citations
  10. 10 Josep Peñuelas Spain 160k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

What are the most cited papers in Integrated Energy Systems Optimization?

The most cited paper in Integrated Energy Systems Optimization is "Net-zero emissions energy systems" (Steven J. Davis et al., 2018), with 2,396 citations. Next come "4th Generation District Heating (4GDH)" (2,191) and "Review of energy system flexibility measures to enable high levels of variable renewable electricity" (1,695).

Most cited papers
#PaperReleasedCitations
1 Net-zero emissions energy systems Steven J. Davis et al. · Science Open access 28 Jun 2018 2,396
2 4th Generation District Heating (4GDH) Henrik Lund, S. Werner, Robin Wiltshire et al. · Energy 31 Mar 2014 2,191
3 Review of energy system flexibility measures to enable high levels of variable renewable electricity Peter D. Lund, Juuso Lindgren, Jani Mikkola et al. · Renewable and Sustainable Energy Reviews Open access 27 Feb 2015 1,695
4 Perspectives on … Environmental Systems Research Institute, Inc Angela Hao-Chun Lee · The Journal of Academic Librarianship Nov 1997 1,680
5 Optimization methods applied to renewable and sustainable energy: A review Raúl Baños, Francisco Rogelio Manzano-Agugliaro, Francisco G. Montoya et al. · Renewable and Sustainable Energy Reviews Open access 15 Feb 2011 1,653
All 100 most cited papers, with filters and sorting

Where is Integrated Energy Systems Optimization research done?

The largest centres of Integrated Energy Systems Optimization research in 2022-now are Beijing (China), Shanghai (China), Nanjing (China) and Guangzhou (China). Among places with at least 20 works in it, it is an unusually large share of all research in Baishan, Yangpu and Lappeenranta.

Largest cities, 2022-now

  1. 1 BeijingChina 1.2k works
  2. 2 ShanghaiChina 341 works
  3. 3 NanjingChina 285 works
  4. 4 GuangzhouChina 216 works
  5. 5 Xi'anChina 208 works
  6. 6 TianjinChina 167 works
  7. 7 WuhanChina 163 works
  8. 8 ChengduChina 163 works
  9. 9 HangzhouChina 161 works
  10. 10 JinanChina 160 works

Where it is the local speciality

  1. BaishanCN · 23.1 works54×
  2. YangpuCN · 74.4 works34×
  3. LappeenrantaFI · 34.7 works25×
  4. Jilin CityCN · 59.0 works15×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Integrated Energy Systems Optimization than the world average.

See Integrated Energy Systems Optimization on the map

Where is the best place to study Integrated Energy Systems Optimization?

Among universities, judged by research, Lappeenranta-Lahti University of Technology, North China Electric Power University and Hong Kong Polytechnic University score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%20%40%mean 20.15%fractional works in this field (log) →share of work in the world top 10% →Iran University of S…Lappeenranta-Lahti U…Hong Kong Polytechni…North China Electric…
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1Lappeenranta-Lahti University of TechnologyFinland 72.321.5%32.5×35 +45.5%
2North China Electric Power UniversityChina 71.315.3%49.1×349 +51.3%
3Hong Kong Polytechnic UniversityChina 64.721.0%2.9×27 +190.3%
4Iran University of Science and TechnologyIran 64.433.4%5.0×14 +25.8%
5Nanyang Technological UniversitySingapore 63.525.2%2.1×18 +27.1%
6Xi'an Jiaotong UniversityChina 62.614.1%6.8×126 +95.2%
7Tsinghua UniversityChina 62.412.5%5.7×140 +26.1%
8ETH ZurichSwitzerland 62.216.2%4.6×34 +34.9%
9Aalborg UniversityDenmark 62.117.5%11.8×71 -14.5%
10Sapienza University of RomeItaly 59.524.8%2.1×27 +168.9%

Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Integrated Energy Systems Optimization, country by country

Is Integrated Energy Systems Optimization research growing?

Output in 2022-2025 was 70% higher than in 2018-2021, peaking in 2025. The fastest-growing topics are Integrated Energy Systems Optimization.

still counting19801990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Integrated Energy Systems Optimization as a percentage of every work published that year, 0.040% in 2024.

still counting0.025%0.050%0.075%Integrated Energy Systems Optimization0.060% in 202519801990200020102020

Fractional works of Integrated Energy Systems Optimization over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting5%10%15%Integrated Energy Systems Optimization9.8% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

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