Energy Efficiency

As of 2021, four of the top 5 energy consuming countries in the world - measured by the consumption of primary energy which includes all types of energy - were China, USA, India and Russia. Which was the fifth?






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Correct Answer
Japan

And here's something for you to take back

China consumed about 158 exajoules of energy in 2021 - an exajoule equals 10^18 joules, or a billion billion joules.

To help you relate to it, an average household in the US consumes about 40 million joules of electricity (about 10,000 kWh) per year, so China annually consumes the equivalent of 4 trillion times the energy that an average US household consumes in electricity every year. Now, if you try computing the same for an Indian household, that would be almost 50 trillion times (an average Indian household consumes only about 8% of electricity that of an American household does)

USA comes next in list, consuming about 93 exajoules, India 35, Russia 31 and Japan about 18 exajoules in 2021.

Source - Statista

   


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