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Xe-100

X-energy's pebble bed, 80 MWe per module, with Dow and Amazon as first customers.

The Xe-100 is a 200 MWt, 80 MWe pebble-bed reactor per module, conceived for four-module plants. Its first project is a Dow chemical complex at Seadrift, Texas, and in 2024 Amazon announced an investment for up to 5 GW of this technology.

It is under NRC licensing; the construction permit application for Seadrift was filed in 2025. Its TRISO fuel will be made at the company's own plant in Oak Ridge.

Quick facts

Power80 MWe per module
Status 2026licensing
CustomersDow, Amazon, Energy Northwest