Texas SMR plant moves to final permitting stage

The US Nuclear Regulatory Commission has completed its safety review of the Xe-100 small modular reactor proposed for Long Mott Generating Station in Texas. A construction permit announcement is expected to follow. The Xe-100, made by X-energy, is a high-temperature gas reactor design.

Where this fits

This is a data point on the firm-power alternative to renewables that Australia has legislated away. The US is moving a new reactor design toward deployment; Australia is banning the thing. The permitting win matters not for cost per megawatt-hour, SMRs are expensive capital per unit, but for the reliability and energy density argument. A single reactor on an existing industrial site replaces dispatchable firm power without requiring vast land area, multiple weather-dependent plants, battery storage, or gas backup. It also removes exposure to China's supply chain for the generation asset itself.

What it means

Australia's renewable transition is locked into high whole-system cost: firming with gas, transmission overbuild to move scattered wind and solar, and dependency on China for panels, batteries, and inverters. The US is hedging that bet by proving SMR technology can be licensed and built. If the Xe-100 proceeds to construction, it demonstrates that new nuclear can move at pace in a first-world regulatory environment. Australia's legislated ban on nuclear ensures we will not have that option when the cost and reliability case for firm, low-emissions, domestically-owned generation becomes undeniable. We are choosing strategic dependence over technological sovereignty.