Technologies
BWR — Boiling Water Reactor
Water boils directly in the reactor vessel, producing steam that drives turbines directly. Simpler single-loop design than PWR but the steam is mildly radioactive, requiring turbine building shielding.
Gen IV HTGR — Generation IV High-Temperature Gas-Cooled Reactor
Uses helium as coolant and graphite as moderator. Operates at very high temperatures (750–950°C outlet), enabling industrial process heat, hydrogen production, and high thermodynamic efficiency. TRISO fuel particles provide inherent safety — fuel cannot melt.
Gen IV SFR — Generation IV Sodium-Cooled Fast Reactor
Uses liquid sodium coolant (no moderator) enabling fast neutron spectrum. Can breed plutonium from U-238 (breeder reactor) or burn actinide waste. Sodium coolant enables high operating temperatures at low pressure.
PWR — Pressurized Water Reactor
The most widely deployed reactor type globally. Water is kept under high pressure (~155 bar) to prevent boiling in the primary circuit, then transfers heat via steam generators to a secondary loop that drives turbines. Light water serves as both coolant and moderator.