China has ensured ample supply and stable prices of electricity so far this year with reliable energy supply solutions despite rising domestic demands from high-tech industries and global energy price hikes caused by geopolitical conflicts.

China's total installed power-generating capacity reached nearly 4 billion kilowatts by the first quarter of this year, according to data released by the National Bureau of Statistics (NBS) on Friday. The volume remains the world's largest, accounting for nearly 30 percent of the global total.

The share of clean energy in China's power supply system has seen a notable increase so far this year.

In the first quarter, industrial enterprises above designated size across China produced 700 billion kilowatt-hours of electricity from clean energy sources including hydropower, nuclear power, wind power and solar energy, representing a year-on-year increase of 2.8 percent and accounting for 33.2 percent of their total power generation, according to the NBS data.

Industrial enterprises above designated size refer to enterprises each with an annual revenue of 20 million yuan (2.93 million U.S. dollars) and more.

By the end of February, China's installed renewable energy capacity reached 2.38 billion kilowatts, the data showed.

"It's estimated that in the first quarter of the year, renewable energy sources such as wind power and photovoltaic power accounted for about 70 percent of China's newly installed power generation capacity. It's safe to say that more than two thirds of China's newly installed generators are producing electricity from clean energy sources. Our energy supply has become more abundant and greener," said Hou Wenjie, director of the statistics and digital intelligence department at the China Electricity Council.