The ability to generate tritium within the reactor is crucial. A sustainable fusion energy system needs to produce more fuel than it consumes
I clearly don't understand the fusion process. Deuterium is used to fuse and create tritium?
The reactor core also features an electron-screened environment. This design reduces the energy needed to overcome the Coulomb barrier between particles, which lowers required fusion temperatures by several million degrees and allows for higher performance in a compact size.
What's this "electron screened environment" they are talking about? They can't purge all electrons from molecules when they enter can they? That would make the molecule instable. But it sounds like they are doing something similar in order to reduce the temperature required for fusion.