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Built 2026-10-28 (28 October 2026)

Electricity in September 2026: Demand Up 2.7% on September 2025

Demand in the 44 countries with data for both September 2026 and September 2025 was 1,757 TWh in September 2026, up 2.7% on September 2025. Those 44 countries cover 66% of world electricity demand (measured on 2025 demand), so this is a review of the reporting countries, not a world total. Low carbon sources supplied 46.5% of their generation in September 2026.

September 2026 at a Glance

44 countries, Ember monthly
Demand, 44 countries1,757 TWhup 2.7% on September 2025
Low carbon share46.5%up 0.4 points on September 2025
Solar and wind share23.3%
Share of world demand66%44 countries, 2025 basis

Key Facts

  • Demand in the 44 countries with data for both September 2026 and September 2025 was 1,757 TWh in September 2026, up 2.7% on September 2025.
  • Those 44 countries cover 66% of world electricity demand (measured on 2025 demand), so this is a review of the reporting countries, not a world total.
  • Low carbon sources (nuclear and renewables) supplied 46.5% of generation in these countries in September 2026, up 0.4 points on September 2025.
  • Solar supplied 13.2% and wind 10.1% of their generation in September 2026.
  • Their generation weighted carbon intensity was 450 gCO2/kWh in September 2026, against 454 gCO2/kWh in September 2025.
  • Among large reporters, Sweden had the lowest carbon intensity in September 2026 (24 gCO2/kWh) and Poland the highest (606 gCO2/kWh).

Demand Through 2026 Against 2025

same 44 countries, TWh per month
Monthly electricity demand of the 44 reporting countries, 2025 and 2026 Demand in the 44 countries with data for September 2026 and September 2025: 1,757 TWh in September 2026 against 1,711 TWh in September 2025. A month shows only when every one of these countries has a figure for it. 0 500 1,000 1,500 2,000 JanFebMarAprMayJunJulAugSepOctNovDec
Demand in the 44 countries with data for September 2026 and September 2025: 1,757 TWh in September 2026 against 1,711 TWh in September 2025. A month shows only when every one of these countries has a figure for it.
Ember monthly statistics through September 2026
Monthly electricity demand of the 44 reporting countries, 2025 and 2026
Month20262025
Jan1,782 TWh1,750 TWh
Feb1,622 TWh1,552 TWh
Mar1,694 TWh1,645 TWh
Apr1,584 TWh1,530 TWh
May1,665 TWh1,594 TWh
Jun1,770 TWh1,719 TWh
Jul1,982 TWh1,948 TWh
Aug1,965 TWh1,910 TWh
Sep1,757 TWh1,711 TWh
Octn/a1,659 TWh
Novn/a1,635 TWh
Decn/a1,791 TWh

Biggest Movers, September 2026 Against September 2025

countries generating at least 3 TWh in both months

Demand rose most

Countries where demand rose most, September 2026
CountryChangeDemand
1. Vietnam+11.2%27.3 TWh to 30.3 TWh
2. Italy+9.3%24.7 TWh to 27.0 TWh
3. United States+8.2%377 TWh to 408 TWh
4. Mexico+8.1%31.1 TWh to 33.6 TWh
5. Peru+7.6%5.03 TWh to 5.41 TWh

Demand fell most

Countries where demand fell most, September 2026
CountryChangeDemand
1. Japan-10.0%80.5 TWh to 72.5 TWh
2. Netherlands-5.4%9.76 TWh to 9.23 TWh
3. Philippines-4.6%9.73 TWh to 9.28 TWh
4. Austria-2.4%5.45 TWh to 5.32 TWh
5. New Zealand-1.1%3.53 TWh to 3.49 TWh

Solar share rose most

Countries where the solar share rose most, September 2026
CountryChangeShare of generation
1. Romania+14.4 points15.1% to 29.5% of generation
2. Austria+10.8 points17.3% to 28.1% of generation
3. Belgium+6.8 points18.6% to 25.4% of generation
4. Portugal+6.5 points26.6% to 33.1% of generation
5. Greece+4.1 points28.2% to 32.3% of generation

Wind share rose most

Countries where the wind share rose most, September 2026
CountryChangeShare of generation
1. Romania+4.1 points10.4% to 14.5% of generation
2. Austria+3.3 points11.5% to 14.8% of generation
3. Sweden+3.0 points23.5% to 26.5% of generation
4. Poland+2.1 points14.1% to 16.2% of generation
5. Mexico+2.0 points3.4% to 5.4% of generation

Carbon intensity fell most

Countries where carbon intensity fell most, September 2026
CountryChangeCarbon intensity
1. New Zealand-65.6%77 gCO2/kWh to 26 gCO2/kWh
2. Turkey-18.4%491 gCO2/kWh to 401 gCO2/kWh
3. Greece-6.0%287 gCO2/kWh to 270 gCO2/kWh
4. United Kingdom-5.1%195 gCO2/kWh to 185 gCO2/kWh
5. Philippines-5.0%604 gCO2/kWh to 574 gCO2/kWh

Carbon intensity rose most

Countries where carbon intensity rose most, September 2026
CountryChangeCarbon intensity
1. Belgium+99.3%126 gCO2/kWh to 252 gCO2/kWh
2. France+55.6%22 gCO2/kWh to 34 gCO2/kWh
3. Netherlands+42.8%204 gCO2/kWh to 291 gCO2/kWh
4. Austria+32.9%55 gCO2/kWh to 73 gCO2/kWh
5. Czechia+26.2%332 gCO2/kWh to 420 gCO2/kWh

Cleanest and Dirtiest Grids, September 2026

large reporters, gCO2/kWh

Lowest carbon intensity

Lowest carbon intensity among large reporters, September 2026
CountryCarbon intensityGeneration
1. Sweden24 gCO2/kWh11.1 TWh generated
2. New Zealand26 gCO2/kWh3.50 TWh generated
3. Norway29 gCO2/kWh10.3 TWh generated
4. France34 gCO2/kWh36.1 TWh generated
5. Finland54 gCO2/kWh5.51 TWh generated
6. Austria73 gCO2/kWh4.20 TWh generated
7. Denmark128 gCO2/kWh3.25 TWh generated
8. Hungary138 gCO2/kWh3.09 TWh generated

Highest carbon intensity

Highest carbon intensity among large reporters, September 2026
CountryCarbon intensityGeneration
1. Poland606 gCO2/kWh13.0 TWh generated
2. Philippines574 gCO2/kWh9.29 TWh generated
3. China533 gCO2/kWh900 TWh generated
4. Mexico518 gCO2/kWh33.6 TWh generated
5. Australia478 gCO2/kWh19.4 TWh generated
6. Japan467 gCO2/kWh72.5 TWh generated
7. Vietnam456 gCO2/kWh28.9 TWh generated
8. Czechia420 gCO2/kWh6.10 TWh generated

Largest Reporters by Demand, September 2026

Largest reporters by demand, September 2026
CountryDemandOn September 2025
1. China898 TWh+0.9%
2. United States408 TWh+8.2%
3. Japan72.5 TWh-10.0%
4. Germany41.2 TWh+6.2%
5. Mexico33.6 TWh+8.1%
6. France30.6 TWh-0.3%
7. Turkey30.4 TWh+2.6%
8. Vietnam30.3 TWh+11.2%

How This Month Is Measured

  • Coverage. 44 countries reported September 2026. 44 of them also have September 2025, and those 44 are the like for like set behind every figure above. Together they made up 66% of world demand in 2025. A month is published only when at least 10 countries and 60% of world demand are covered.
  • Not a world total. These sums cover the reporting countries only.
  • Carbon intensity. The figure for the group weights each country's monthly intensity by its generation; country rankings use Ember's own monthly intensity.

Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of September 2026. Ember monthly statistics.

Cite this page
APA 7

World Power Monitor. (2026). Electricity in September 2026: Demand, Low Carbon Share and Movers. https://worldpowermonitor.com/months/2026-09/

Plain text

World Power Monitor. Electricity in September 2026: Demand, Low Carbon Share and Movers. Data as of 2026-09. Data from Ember. https://worldpowermonitor.com/months/2026-09/

BibTeX 
@misc{wpm_months_2026_09_2026,
  title = {{Electricity in September 2026: Demand, Low Carbon Share and Movers}},
  author = {{World Power Monitor}},
  year = {2026},
  note = {Data as of 2026-09. Data from Ember.},
  url = {https://worldpowermonitor.com/months/2026-09/}
}

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