China connected its first small modular nuclear reactor to its power grid, making it the first country in the world to draw power from such a machine. Its small size allows for greater scalability as well as reduced operations and deployment costs.
The new modular nuclear reactor is the world's first pebble-bed modular high-temperature gas-cooled reactor. Instead of heating up water, it heats helium to produce energy. The machine is designed to quickly shut down if an error occurs.
Now just need to strap this to the back of an exoskeleton so we can have space marines.