The April 2025 lawsuit post describes Ward One as a 100 kWt high-temperature gas reactor using TRISO fuel, named, the founder writes, after a Manhattan Project-era relative of his, with a planned operating life of less than a month. It says the design relies on strong negative thermal reactivity feedback and low power density for fully passive decay-heat removal, and claims that holding its spent fuel for five minutes would give the same radiation exposure as a CAT (CT) scan. The later Ward 250 carries the same 100 kWt figure (orig-011, orig-034), which suggests Ward 250 grew out of the Ward One concept, though no source read says so directly. Ward One itself was still unbuilt in the Philippines as of April 2026 (orig-064). For scale: a CT scan is about 1 to 10 millisieverts (FDA), so five minutes would need 12 to 120 millisieverts an hour; the post gives no amount of fuel, cooling time, distance or shielding.

• Valar Atomics is Suing the NRC (Valar Atomics, 2025-04-07) primary company “Ward One, a 100kWt High Temperature Gas Reactor using TRISO fuel”