China's major power plants produced 1.68 trillion kilowatt hours (kWh) of electricity in the first half to June, up 12.9 percent year-on-year, the China Electricity Council said.

Coal-fired power plants produced 1.41 trillion kWh, up 11.7 percent; hydropower stations produced 214.9 billion kWh, up 18.5 percent; and nuclear power stations produced 32.9 billion kWh, up 25.9 percent.

Power consumption stood at 1.69 trillion kWh in the first six months, up 11.67 percent, the council said.

Grid operators sold a combined 1.39 billion kWh of electricity in the first six months, an increase of 14.3 percent from a year earlier, it said.

China added 33 million kilowatts of installed capacity during the January to June period, it noted.