Energy mix

The energy mix is a group of different primary energy sources from which secondary energy for direct use - such as electricity - is produced.[2]

The world's increasing demand for energy[1]
World energy mix in 2010
World energy mix in 2013
World total primary energy production by country

In 2007, the global primary energy use was 12.5 million tonnes (12,300,000 long tons; 13,800,000 short tons) oil equivalent, or 145,375 gigawatt-hours (523,350 TJ).

According to the International Energy Agency (IEA) 13,6% of world primary energy was used by the European Union (EU). Within the EU, 75.9% came from fossil fuels, 14.1% from nuclear power, 7% from biofuels, 2.9 from renewable energy resources.[3]

Overall primary energy consumption in the United States in 2015 relied most on petroleum (35 quadrillion British thermal units (3.7×1016 kJ)), natural gas (29×10^15 BTU (3.1×1016 kJ)) and coal (16×10^15 BTU (1.7×1016 kJ)). Renewables contributed 9×10^15 BTU (9.5×1015 kJ) and nuclear power 8×10^15 BTU (8.4×1015 kJ).[4] In the same year, about 4 million GWh of electricity were generated in the United States, 67% of which was generated from fossil fuels (coal, natural gas, and <1% petroleum), 20% from nuclear power, 6% hydropower and 7% other renewables.[5]

See also

References


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