China's HTR-PM pair of test reactors is now grid connected. We'll see how it performs over the next few years.

The demonstration High Temperature Gas-Cooled Reactor - Pebble-bed Module (HTR-PM) at the Shidaowan site in Shandong province of China has been connected to the grid, the partners in the consortium building the plant have announced.

https://www.world-nuclear-news.org/Articles/Demonstration-HT...