In 2016, 33% of total floor area was heated by coal-fired boilers for commercial heat production, and co-generation (mostly coal) accounted for 51%, the rest coming from gas and other sources.
China’s district heat network is the world’s largest: in 2015, it consumed more energy than all of the United Kingdom. But district heating is also major source of air pollution in many Chinese cities. On an annual basis, pollutant emissions from coal-fired district heating represent between 3% and 5% of total energy-related pollutants nationwide. However, with the phase-out of coal-fired boilers progressing, China’s central heating fuel mix is changing rapidly.
Source: District Energy Systems in China
21 December 2017