Nuclear Power: Shipping on the Brink of a Revolution!

Nuclear energy is taking center stage in global shipping, as Posidonia 2026, held June 1-5 at the Metropolitan Expo, will host a dedicated seminar on the commercial use of nuclear propulsion. The discussion is no longer theoretical: governments, shipowners, banks, insurers, and ports are actively exploring the practical potential of nuclear-powered vessels.

CORE POWER, a leading company developing nuclear propulsion solutions, highlights this trend as a strong signal of momentum. Charlotte Vere, Head of Commercial Development at CORE POWER, notes that international collaboration and engagement from top stakeholders increase the likelihood that the technology will move from theory to practice.

The next generation of nuclear-powered vessels is expected to utilize fourth-generation Molten Salt Reactors (MSRs) fueled by thorium, offering long intervals between refueling (5–7 years), protection against fuel price volatility, and operational flexibility. Floating nuclear power platforms can also provide clean, high-density energy to ports and industrial hubs.

Nuclear propulsion in shipping is not new: the U.S. vessel Savannah and the Soviet icebreaker Lenin operated with nuclear energy as far back as the late 1950s. However, as Dr. Giorgos Pateras, Vice President of Contships Management, explains, the next generation of ships could arrive within the next 10–15 years, with broader adoption depending on regulatory frameworks, insurance, and institutional infrastructure.

Industry opinions vary: a representative from Hanwha Ocean notes that for many shipowners, nuclear propulsion remains an early strategic evaluation, with commercial deployment possibly not until the late 2030s. Samsung Heavy Industries predicts a similar timeline for container and LNG carriers powered by MSRs.

A key factor is technological maturity combined with regulatory acceptance. Dr. Ioannis Kokarakis, President of the Hellenic Section of SNAME and Technical Director of the SEEBA Zone at Bureau Veritas, emphasizes that a vessel can be technically sound but commercially useless if it cannot access major ports due to regulatory and insurance constraints. The establishment of the Nuclear Energy in Maritime Organization (NEMO) and the modernization process of the 1981 Code for the Safety of Nuclear Merchant Ships are important steps forward.

Proponents of nuclear propulsion highlight its advantages:

• Zero CO₂ emissions during operation
• Elimination of fuel tanks and large engine rooms
• Stable, predictable energy costs
• Ideal for LNG carriers, ultra-large container ships, and deep-water vessels

However, economic viability remains critical. Panos Kourkountis, President of MARTECMA and Technical Director of Sea Traders, stresses that no technology is adopted at scale without competitive cost. Additionally, the management of radioactive waste and public perception of the word “nuclear” remain sensitive issues.

In Greece, the discussion is already underway, with the country controlling approximately 20% of global commercial shipping capacity. Posidonia 2026, under the auspices of the Ministry of Shipping and Island Policy, the Hellenic Chamber of Shipping, and the Union of Greek Shipowners, highlights the capacity of Greek shipowners to lead in technologies that could transform shipping forever.

Nuclear propulsion in shipping is no longer a dream; it is the next major challenge and opportunity, with potential commercial deployment by the mid-2030s. Technology, political will, and international collaboration will determine whether this “green fuel of the future” becomes reality or remains a chapter in history.

Source: pagenews.gr