Russia’s state nuclear corporation Rosatom said it has begun power startup at Unit 7 of the Tianwan nuclear power station in China, with the facility already delivering the first kilowatts to the country’s energy system and commercial operation scheduled before the end of the year.

Rosatom said power startup is the multi-stage process of bringing a nuclear reactor from a cold, shut-down state to a fully operational condition that generates electricity.

It said the reactor’s power will be increased in several steps up to 50%, followed by operation at nominal level and commercial operation.