X‑Energy submits CPA for XE‑100 advanced reactor; company outlines small footprint and on‑site spent‑fuel approach
Loading...
Summary
X‑Energy said it submitted a combined licensing package and that its XE‑100 pebble‑bed high‑temperature gas reactor (HTGR) design uses TRISO fuel and a compact site envelope. The company told the Governor's Nuclear Advisory Council that the first commercial deployment is paired with an industrial offtaker and is funded under DOE ARDP support; NRC
Daniel Strohmeyer, radiation protection manager at X‑Energy, told the Governor’s Nuclear Advisory Council on March 31 that the company had submitted its combined licensing package (CPA) for the XE‑100 pebble‑bed reactor and described the design and site footprint.
What X‑Energy said
- Reactor and fuel: Strohmeyer said the XE‑100 is a pebble‑bed design using TRISO (tristructural isotropic) fuel in roughly 60‑mm pebbles. He said each pebble holds thousands of fuel kernels; the design is intended to be robust at high temperatures and to limit the severe‑accident release mechanisms associated with traditional light‑water reactors. He described online fuel handling that sorts pebbles for re‑insertion or discharge based on burn‑up monitoring.
- Licensing and schedule: X‑Energy said it filed a CPA (the company reported the filing on the day of the council meeting) and that the first commercial site (a four‑unit installation serving a chemical/industrial offtaker) will proceed with ARDP cost‑share support. Company representatives said NRC review timing and long lead‑time components will influence construction and operation dates but voiced a multi‑year timeframe before commercial operation.
- Site and emergency planning: Strohmeyer said the XE‑100 site design uses a compact site boundary (on the order of a 400‑meter site radius for the nuclear island) and stated that normal‑operation offsite doses are well under NRC public limits. He said the design contemplates on‑site spent‑fuel storage options (canistered pebble storage) rather than a large fuel pool.
What matters
X‑Energy’s presentation added an advanced‑reactor component to the council’s agenda: TRISO‑fuel, high‑temperature reactors and pebble‑bed fuel handling raise different regulatory, safeguarding and emergency‑planning questions than conventional reactors. Strohmeyer said the company will provide further technical and safety documentation as the NRC review proceeds.
Ending
X‑Energy asked the council to note the CPA filing and said it would continue outreach and regulatory engagement. Council members asked for follow‑up on fuel supply, manufacturing plans and schedule detail; X‑Energy said fuel manufacturing plans (TX‑1 facility) and production timing are advancing but detailed commercial deployment schedules depend on supply chains and NRC review timelines.
