China, the world's second-largest economy, will consume more energy than India, Brazil, even more than the European Union and the United States combined, the International Energy Agency said in its World Energy Outlook report published early this month.

China's growing population and rapid urbanization drive the country to consume as much energy as well.

China will exchange positions with the United States as it becomes the world's largest consumer in 2035. IEA predict China will consume nearly 70 per cent more energy than the U.S.

In the next 25 years, 90 per cent of the projected growth in global energy demand will come from non-core economies. China alone will account for more than 30 per cent.

Emerging economies will also dominate the expansion of supply as it relies increasingly on OPEC oil production to grow more than half of the global total in 2035.