China's Tianwan 7 connected to the grid

China's Tianwan Nuclear Power Plant unit 7, a Russian-supplied VVER-1200 reactor, has connected to the grid after achieving criticality in early October 2026. The unit is the first of two new reactors at the site, part of a Sino-Russian agreement signed in 2018. Construction began in May 2021. The plant is a joint venture majority-owned by China National Nuclear Corporation. When all eight units are operational, the site will deliver over 70 TWh annually with an installed capacity exceeding 9 GW, avoiding 57.4 million tonnes of annual carbon emissions.

Where this fits

This is a working model of what a firm, low-carbon grid looks like at scale: 9+ GW of dispatchable capacity running continuously, with a materials footprint and manufacturing lead time counted in years, not decades. It demonstrates China's nuclear strategy while Australia remains legally barred from the same technology. The sovereignty angle cuts two ways. Tianwan runs on Russian reactor designs and fuel supply, meaning China has diversified its energy security away from weather and commodity volatility. Australia has done the opposite: betting the grid on solar and wind, which require China-supplied inverters, batteries, and panels, while banning the one firm, low-emission alternative that would break that dependence.

What it means

Tianwan shows what industrial capacity and political will deliver: a working firm grid, built to last 60+ years, with zero weather risk. Australia's renewables-only path requires equivalent capacity in gas peaking plants, transmission overbuild, and battery storage to firm the same output. The cost comparison is not megawatt-hour to megawatt-hour. It is whole-system: solar and wind need firming infrastructure China controls the supply chain for. A nuclear alternative remains illegal.