Tianwan Unit 7, a Russian-designed VVER-1200 reactor at the nuclear plant in Jiangsu Province, has started sending power to China's national grid. The unit is part of a four-reactor program with Rosatom and Chinese partners that also includes Xudabao Units 3 and 4. Full commercial operation is expected before the end of 2026. Once all eight Tianwan reactors are running, the facility's installed capacity should exceed 9 GW, with annual output above 70 billion kWh. The plant operator says that could avoid more than 57 million tonnes of CO2 per year compared with fossil generation. Nuclear power is one of the low-carbon baseload options in China's grid mix, and this milestone shows how cross-border reactor deals still shape that buildout.
