China's energy demand growth is expected to slow to 1.8 percent per annum in the 10 years after 2020, a top management member of the State Grid Corporation of China (SGCC) said on Monday.

Yang Qing, executive vice president of the company, said at the Singapore International Energy Week that China's energy demand is growing at over 4 percent per year in the current decade.

However, the growth may slow significantly in the decade between 2020 and 2030 as economic growth becomes greener and relatively slower.

The growth in energy demand is likely to slow to 1.8 percent per year based on a projected growth of 5.3 percent for the Chinese economy, Yang said, citing a forecast by his company.

He said that no official forecast had been announced for the decade between 2020 and 2030, but he was of the opinion that the energy consumption is "likely to peak some time between 2030 and 2040."

Yang also said that China has been making every effort to pursue greener and more sustainable growth.

The world's largest economy and manufacturing hub is working towards the target of non-fossil fuels accounting for 11.4 percent of the total energy consumption by the end of 2015.

It is also trying to raise the efficiency by improving the way traditional fuel sources like coal are being used. According to Yang, China used on average 367 grams of coal to generate one kilowatt hour of electricity in 2006, and it was 326 grams five years later, representing an improvement of over 10 percent.

China has also set a target of raising its installed capacity in wind power to 100 gigawatts by the end of 2015 from the current 64 gigawatts, while the installed capacity in solar power will grow to 35 gigawatts from the current 6.6 gigawatts. The installed capacity in nuclear energy will grow to 40 gigawatts.