Concrete pouring for the turbine building base slab of the Tianwan-7 nuclear power plant in China has begun one month ahead of schedule, China National Nuclear Corporation said.

The announcement means China now has 14 nuclear reactors under construction. It has 51 in commercial operation, providing a 4.9% share of its electricity generation.

In the country’s latest five-year plan – which set out China’s economic and development goals for the five years from 2021 – Beijing said it aims to have 70 GW of installed nuclear capacity by 2025 from about 50 GW at the end of 2019. That would equate to about 20 new reactors.