What's happening
Japan is preparing to deploy over $65 billion — approximately 10 trillion yen — into U.S. small modular reactor development as part of a $550 billion U.S. investment framework, according to reporting by Chosunilbo and Nikkei Shimbun on June 12, 2026, based on online consultations held earlier in June. The capital is divided into two primary allocations: up to $40 billion directed at GE Vernova-Hitachi joint SMR initiatives centered on the BWRX-300 reactor design, targeting 3 gigawatts of generating capacity across sites in Tennessee and Alabama, and up to $25 billion earmarked for NuScale Power SMR projects, with initial development activity being considered in Tennessee.
The negotiations are being conducted at the ministerial level, involving Japan's Minister of Economy, Trade and Industry Ryosei Akazawa and U.S. Secretary of Commerce Howard Lutnick. The U.S. government has begun the SMR licensing process for the relevant projects, and the investment framework is structured in phases, with second and third rounds of announced commitments expected following the summer of 2026. The scale of the commitment positions this as one of the largest cross-border nuclear energy investment arrangements on record.
Why it matters for markets
The financial implications for the two primary U.S. beneficiaries are substantial relative to their current scale. NuScale Power, which carries a market capitalization of approximately $3.42 billion and reported revenue of $18.7 million in its most recent fiscal period, is being associated with a potential $25 billion investment commitment — a figure that dwarfs the company's entire current market value. NuScale's NuScale Power Module holds a structural regulatory advantage as the first and only SMR design to receive U.S. Nuclear Regulatory Commission design approval, a distinction that could be material in the licensing process the U.S. government has now initiated. GE Vernova, with $39.37 billion in annual revenue and a market capitalization of approximately $252.77 billion, would absorb the $40 billion GE Vernova-Hitachi allocation through its joint SMR program with Hitachi, targeting BWRX-300 reactor deployment at a scale of 3 GW.
The driving force behind the investment is explicitly linked to AI-driven data center power demand, which has placed acute pressure on grid infrastructure across the United States. SMRs are being evaluated as a long-lead solution capable of providing firm, dispatchable baseload power to large-scale computing facilities that require continuous, high-density electricity supply. The cross-border structure of the investment — channeling Japanese capital into U.S. nuclear manufacturing and deployment — also reflects the degree to which energy security and AI infrastructure are converging as strategic national priorities for both governments.
The phased structure of the investment framework introduces execution and timing uncertainty. With second and third investment rounds not expected to be announced until after summer 2026, and with the U.S. licensing process for the relevant projects only recently initiated, the pathway from announced capital commitment to operational generating capacity involves multiple regulatory, engineering, and financing milestones that remain unresolved.
Sectors and assets to watch
NuScale Power Corporation (SMR) and GE Vernova Inc. (GEV) are the two named U.S. entities at the center of the investment framework. NuScale's role in the $25 billion allocation is particularly notable given the company's comparatively small operational footprint — 428 employees and $18.7 million in revenue — against the scale of capital being discussed. The BWRX-300 reactor at the core of the GE Vernova-Hitachi program is a boiling water reactor design developed through the GE Vernova-Hitachi joint venture, and the Tennessee and Alabama site considerations place the initiative within existing U.S. nuclear infrastructure corridors. GE Vernova's broader energy transition portfolio, which spans gas power, wind, and electrification segments with $39.37 billion in annual revenue, means the SMR program represents a targeted but not dominant share of the company's overall business.
Beyond the two primary tickers, the investment framework has implications for the broader SMR supply chain, domestic nuclear component manufacturers, and utilities operating in Tennessee and Alabama that may serve as offtake partners or site hosts. The involvement of Hitachi as GE Vernova's joint venture partner in the BWRX-300 program also positions Japanese industrial capital as a direct participant in U.S. nuclear manufacturing, a structural shift with potential downstream effects on domestic nuclear workforce and component sourcing.
What to watch next
Key developments to monitor include the formal announcement of second and third investment rounds expected after summer 2026, the pace and outcome of the U.S. government's SMR licensing process for the Tennessee and Alabama sites, and any further specification of the contractual or equity structure governing the $40 billion GE Vernova-Hitachi and $25 billion NuScale allocations. Progress in ministerial-level negotiations between Ryosei Akazawa and Howard Lutnick — including whether the $65 billion commitment is formalized through binding agreements or remains a framework-level pledge — will be a critical signal for the timeline and certainty of capital deployment. Additionally, any announcements from data center operators or utilities regarding offtake agreements tied to the planned 3 GW BWRX-300 capacity would provide concrete evidence of demand-side commitment to the projects.