All 8 Sources Coal Power Natural Gas Nuclear Power Hydropower Wind Power Solar Power Bioenergy Clean Electricity
GENERATION TECHNOLOGY DIRECTORY · 2000-2025 SERIES

Global Electricity Generation by Fuel Source

In 2025, global electricity generation reached 31,734 TWh, split between 57.4% fossil fuels and 42.6% low-carbon sources (nuclear + renewables). Inspect each generation source below for country-by-country rankings and 25-year trajectories.

COAL
33.1%

Coal remains the single largest source of global electricity generation by volume, though its share varies dramatically between fast-growing Asian industrial grids and rapidly decarbonizing OECD power systems.

2025 World 10,490 TWh
5Y Change +11.2%
#1 Producer China (55%)
21.7%

Natural gas is the primary dispatchable baseload and peaking fuel in North America, the Middle East, and Eurasia, providing roughly 22% of world electricity.

2025 World 6,896 TWh
5Y Change +8.1%
#1 Producer United States (26%)
NUC
Low-Carbon Baseload

Nuclear Power Generation

8.9%

Zero-emission nuclear fission provides firm 24/7 baseload electricity across 30+ major economies, led by the United States, China, France, Russia, and South Korea.

2025 World 2,812 TWh
5Y Change +6.2%
#1 Producer United States (28%)
HYD
Renewable Baseload

Hydroelectric Power Generation

14.0%

Hydroelectric dams remain the largest dispatchable renewable electricity source worldwide, anchoring the grids of China, Brazil, Canada, Norway, and the Pacific Northwest.

2025 World 4,432 TWh
5Y Change +2.0%
#1 Producer China (31%)
WND
Variable Renewable

Wind Electricity Generation

8.6%

Wind power has scaled from a niche European technology in 2000 into a multi-thousand-terawatt-hour source on the global electricity grid.

2025 World 2,712 TWh
5Y Change +70.4%
#1 Producer China (42%)
SOL
Variable Renewable

Solar Electricity Generation

8.8%

Solar photovoltaics is the fastest-growing electricity generation technology in history, led by exponential utility-scale and distributed buildouts in China, the United States, India, and Europe.

2025 World 2,779 TWh
5Y Change +225.6%
#1 Producer China (42%)
BIO
Renewable Dispatchable

Bioenergy & Biomass Power Generation

2.2%

Bioenergy and waste-to-energy plants provide dispatchable renewable electricity and industrial cogeneration across Europe, Brazil, China, and North America.

2025 World 705 TWh
5Y Change +17.5%
#1 Producer China (29%)
42.6%

Combined low-carbon generation (nuclear fission plus all renewable sources) measures how much of a nation's electricity supply operates without direct fossil-fuel combustion.

2025 World 13,529 TWh
5Y Change +33.6%
#1 Producer China (33%)