Nuclear & SMR Power for AI Data Centers — Products

Engine-synthesised product landscape for Nuclear & SMR Power for AI Data Centers, ranked by trend signal across hiring, capital, orders, and discussion axes.

Last refresh: 2026-06-18.

Xe-100 high-temperature gas reactor — HTGR pebble-bed SMR (80 MWe / four-pack 320 MWe)

Trend: 🔥 hot

Opportunity: Industrial process-heat plus hyperscaler power are simultaneously chasing the same Xe-100 platform — Amazon for data centers, Dow for steam at Seadrift — validating SMR as a non-utility OEM business model.

Most commercially de-risked U.S. SMR right now: dual anchor customers across hyperscale and chemicals, Series C closed, and X-energy's hiring tilts to construction/supply chain/plant ops which is consistent with a project entering build phase rather than design.

Companies committing: X-energy.

VOYGR SMR module — small modular reactor

Trend: ↗ rising

Opportunity: Only NRC-certified U.S. SMR design, but flagship CFPP project cancelled when subscription targets failed at ~$89/MWh — VOYGR needs a creditworthy hyperscaler/industrial offtaker to replace lost municipal demand.

VOYGR is the most regulator-mature SMR in the U.S., and NuScale is still hiring program engineers and contract managers, but it lacks an anchor customer after CFPP — risk is demand-side, not technology-side.

Companies committing: NuScale Power.

Natrium reactor — sodium fast reactor + molten-salt storage

Trend: ↗ rising

Opportunity: Natrium's molten-salt storage gives it a dispatchable peaking advantage worth ~155 MWe for grids facing data-center spikes, but commercial start slipped 2 years because the entire U.S. HALEU supply chain was Russian-dependent.

Differentiated load-following SMR with the Wyoming demo as anchor; hiring is supply-chain and QA heavy, consistent with a project crossing from design to procurement. The binding constraint is upstream HALEU, not reactor demand.

Companies committing: TerraPower.

HALEU fuel — high-assay low-enriched uranium feedstock for advanced reactors

Trend: ↗ rising

Opportunity: Every Gen-IV SMR (Natrium, Xe-100, Aurora) needs HALEU and only one U.S. cascade is producing it at kg-scale — the chokepoint that already slipped Natrium 2 years is now the single biggest schedule risk to the entire SMR build-out.

HALEU is the upstream pinch point that determines whether the SMR cohort can hit late-2020s COD dates; ADVANCE Act passage reflects Congress recognizing this. Centrus is the only named domestic supplier in evidence — capacity expansion or a second supplier is a clear opportunity.

Companies committing: TerraPower, X-energy.

Susquehanna behind-the-meter nuclear PPA (Cumulus / AWS) — co-located nuclear-to-datacenter sleeved PPA

Trend: → steady

Opportunity: The FERC 2-1 rejection and subsequent ISO tariff rulemaking define whether behind-the-meter nuclear-to-datacenter is even legal — the resolution of this proceeding is the single largest swing factor for SMR siting strategy and Talen's data-center-development hires suggest they're betting it gets resolved favorably.

Highest-stakes regulatory test case in U.S. nuclear-power right now; Talen's parallel 'Sr. Director Digital Infrastructure Development' and 'Power Generation Development' postings show the company is doubling down on co-location even with FERC headwind. Outcome here directly templates SMR-plus-datacenter projects.

Companies committing: Talen Energy.

Three Mile Island Unit 1 / Crane Clean Energy Center restart — large-LWR restart with dedicated hyperscaler PPA

Trend: → steady

Opportunity: Microsoft's 20-yr offtake of an entire restarted reactor (fact 6c20ef89, 98c86692) creates a template for hyperscaler-anchored nuclear that Constellation can replicate across its 22 GW fleet — and is the model SMRs will need to follow.

Not an SMR but the deal that revalues the entire SMR thesis: proves hyperscalers will sign 20-yr PPAs at premium pricing for 24/7 carbon-free MW. Constellation hiring is sales-led, consistent with monetizing the rest of the fleet under similar contracts.

Companies committing: Constellation Energy.

Palisades restart — previously-shutdown PWR brought back online

Trend: → steady

Opportunity: DOE finalized a $1.52B loan guarantee specifically to de-risk the first U.S. nuclear restart (fact 5a4588f2, fcfefc58) — proves the federal balance sheet is now willing to underwrite this category, opening the door for additional brown-field SMR siting at retired coal/nuclear sites.

Large-LWR restart rather than SMR, but it sets two precedents the SMR cohort needs: brown-field nuclear permitting velocity and DOE Title-17 backing at >$1B scale. Watch for Holtec to pivot the same playbook toward SMR-300 deployments.