X-energy's flagship commercial deployment — four Xe-100 units at the Cascade Advanced Energy Facility near the Columbia Generating Station in Richland, Washington. Amazon led X-energy's $500 million Series C-1 in October 2024 and signed a binding agreement for up to 5 GW of nuclear power by 2039. Construction expected to begin in 2026 targeting operational in 2030. The facility is expandable to 12 units and 960 MW. X-energy went public on Nasdaq (XE) in April 2026 raising $1.02 billion — the largest nuclear IPO in history. X-energy submitted a construction permit application to the NRC for the facility, with an expected 18-month review; the Xe-100 is a pebble-bed HTGR generating 80 MWe and 200 MWth per unit. This Washington state deployment, backed by Amazon in partnership with utility Energy Northwest, is separate from X-energy's Dow Chemical Seadrift, Texas deployment. Note: a since-removed duplicate record cited 5,000 MW for this project — that figure describes X-energy and Amazon's longer-term 5 GW ambition across multiple future sites, not this specific facility's actual 320 MW capacity.