Rooftop solar gear, biomass heating, pumped-storage hydroelectricity among tech on rise.

Average monthly output of coal produced by the company has been around 50 million tons during the past 15 months, he added.

Increase of clean energy seen as key to achieving nation's carbon goals.

China produced some 4.45 billion tons of coal last year, up 8 percent year-on- year.

The figure includes 30 million tons of crude oil and more than 5.5 billion cubic meters of natural gas, according to Daqing Oilfield.

The NEA also vowed to actively develop nuclear power in a safe and orderly manner. The goal is to increase the installed capacity of nuclear power by 2.89 million kW.

As China's leading energy base, Shanxi Province is key to the country's energy supply and electricity transmission.

The first freight train was on its way to Poland, the Baltic News Service (BNS) reported on Monday.