Science · Facts & sources
6 sourced facts about energy and electricity, each with the context behind the number. 4 more are in today's round and appear here after it closes.
AnswerNatural gas (about 41%)
Nuclear was second at about 18% and coal third at about 17%; fossil fuels overall made up about 58%.
Source: U.S. Energy Information Administration, Electricity explained (2025) eia.gov
Answer40.9%
Ember says record renewables growth, led by solar, helped push low-carbon power past 40% of global electricity in 2024.
Source: Ember, Global Electricity Review 2025 (2024) ember-energy.org
Answerabout 24%
That's double the roughly 12% share renewables provided back in 1990.
Source: U.S. Energy Information Administration, Electricity explained (2025) eia.gov
Answerabout 38%
Petroleum's share peaked in the 1970s; in 1978 it was about 49% of U.S. energy use.
Source: U.S. Energy Information Administration, U.S. energy facts explained (2025) eia.gov
Answerabout 11%
Wind was the largest renewable source, making up 43% of renewable generation; solar was about 7% of total generation.
Source: U.S. Energy Information Administration, Electricity explained (2025) eia.gov
Answer+29%
That was solar's fastest growth rate in six years, while overall electricity demand rose 4.0%.
Source: Ember, Global Electricity Review 2025 (2024) ember-energy.org