THE NEWS

According to Offshore Engineer, CORE POWER has launched a feasibility study to evaluate the use of BWX Technologies' mPower small modular reactor (SMR) technology in floating nuclear power plants. The study represents a structured technical assessment of whether the mPower SMR design can be adapted for a marine floating platform configuration.

The initiative pairs CORE POWER — a company focused on applying nuclear technology to maritime and offshore energy contexts — with BWX Technologies, the developer of the mPower SMR concept. The feasibility study is the formal mechanism through which both organisations will determine whether the technical, regulatory, and operational parameters of the mPower design are compatible with a floating plant architecture.

No timeline for completion, deployment targets, or cost figures were disclosed in connection with the announcement.

WHY IT MATTERS

For the Brazilian offshore sector, this announcement sits at the far edge of the planning horizon — but it is not without relevance. The structural question the feasibility study is trying to answer — whether a compact nuclear reactor can be safely and economically operated on a floating hull — has direct long-term implications for how deepwater operators think about power supply, emissions intensity, and energy independence at sea.

Brazil's pre-salt operations are among the most energy-intensive offshore production systems in the world. FPSOs operating in the Santos and Campos basins run large gas turbine fleets to power topsides processing, water injection, and gas compression. That power demand is substantial, continuous, and currently met almost entirely by burning a portion of the produced gas — a practice that generates CO₂ emissions and reduces the volume of gas available for export or reinjection. Any credible alternative power source that could displace onboard combustion turbines at scale would be strategically significant.

Floating nuclear, if it reaches technical and regulatory maturity, would represent one such alternative. A floating SMR unit — positioned as a dedicated power vessel connected to an FPSO or a hub platform — could theoretically supply baseload electrical power without combustion emissions and without consuming produced gas. The concept is not new in the literature, but the gap between concept and deployable hardware has historically been wide. Feasibility studies of this type are the mechanism by which that gap is either narrowed or formally quantified.

The Brazilian regulatory picture adds a layer of complexity that operators and policymakers should track. Nuclear energy in Brazil falls under a distinct legal and regulatory framework, with the Comissão Nacional de Energia Nuclear (CNEN) holding authority over nuclear installations. Whether that framework extends to floating nuclear units operating in Brazilian waters — or in Brazil's exclusive economic zone — is not a settled question. International maritime nuclear operations also intersect with IMO conventions and flag-state obligations, meaning any future deployment in Brazilian waters would require alignment between federal nuclear regulators, the maritime authority, and potentially ANP as the upstream regulator. That regulatory architecture does not yet exist in a form suited to floating nuclear, and building it would require deliberate institutional effort.

For Brazilian shipyards and naval architects, the floating hull question is also worth noting. If floating nuclear plants advance toward commercial viability, the design, construction, and maintenance of the hull and marine systems would represent a distinct industrial opportunity — one that sits within the competency base of Brazil's larger naval construction facilities. The nuclear island itself would almost certainly be built and certified in the reactor developer's home jurisdiction, but the integration work and the marine platform could, in principle, be subject to local content frameworks if Brazil were to become a target market.

In the near term, none of this is imminent. A feasibility study is the earliest stage of a development pathway that, for nuclear technology, typically spans decades and requires regulatory approvals across multiple jurisdictions. The mPower SMR itself is still in development; its application to a floating platform adds another layer of engineering and certification complexity. Brazilian operators are not being asked to make decisions today.

What the announcement does signal, however, is that the offshore nuclear concept is attracting structured technical investment from credible actors. CORE POWER has been consistent in its focus on this application space, and the engagement of BWX Technologies — a company with deep roots in U.S. naval nuclear programmes — gives the feasibility study a degree of technical pedigree that earlier floating nuclear proposals sometimes lacked. For Brazilian energy planners and offshore operators with long capital horizons, this is a development worth filing rather than dismissing.

CONTEXT

Floating nuclear power is not without precedent. Russia's Akademik Lomonosov, a barge-mounted nuclear power plant, has been in operation in the Arctic since 2019, supplying power to a remote coastal region. That project, however, was designed for stationary nearshore use rather than open-ocean offshore energy supply, and it was developed within a single national regulatory system. The offshore oil and gas application — a mobile or semi-permanent nuclear power source integrated with production infrastructure — presents a meaningfully different set of engineering and governance challenges.

The broader SMR market is seeing increased activity globally, with multiple reactor designs at various stages of licensing and development. The intersection of that activity with the offshore sector remains at an early stage, but the CORE POWER–BWX Technologies feasibility study is among the more concrete steps taken in that direction to date.