China Huaneng Group, the nation's biggest power generator, plans to produce about 35 percent of its electricity from clean energy by 2020, said President Cao Peixi.

The company will increase development of alternative energies including solar, wind, hydro and nuclear, Cao said at a forum in Beijing over the weekend.

China Huaneng plans to reduce coal consumption per kWh of electricity by about 10 percent to 304 grams by 2020, Cao said.

Huaneng is scheduled to complete construction before the end of next year on the country's first power plant that converts coal into cleaner-burning gas.

The pilot 250-mW plant will be in the northern port city of Tianjin.