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Approximately one-sixth of global primary energy comes from low-carbon sources. Low-carbon sources are the sum of nuclear energy and renewables – which includes hydropower, wind, solar, bioenergy, geothermal, and wave and tidal. 6
The world faces two energy problems: most of our energy still produces greenhouse gas emissions, and hundreds of millions lack access to energy.
Global share of total energy supply by source, 1973. EJ. World total energy supply: 254 EJ Coal: 24.7% Oil: 46.2% Natural gas: 16.1% Nuclear: 0.9% Hydro: 1.8% Biofuels and waste: 10.2% Other: 0.1% IEA. Licence: CC BY 4.0. OECD total energy supply by source, 1971-2020. EJ. 1971 1975 1980 1985 1990 1995 2000 2005 2010 2015 2020 0 50 100 150 200 250.
IEA Key World Energy Statistics (KWES) is an introduction to energy statistics, providing top-level numbers across the energy mix, from supply and demand, to prices and research budgets, including outlooks, energy indicators and definitions.
World primary energy production reached 613 EJ in 2019, a 2.0% increase over 2018 and a 69.6% increase compared to 1990 (which translatesinto an average compounded yearly growth of 1.8%). Oil, coal and natural gas, in this order, are the largest energy sources, together representing 82.0% of total primary energy
Overview. About this report. In 2019 global energy demand increased by less than half the rate of growth in 2018, well below the average rate since 2010. This deceleration was due mainly to slower global economic growth and the impact of milder weather on heating and cooling.
