SOLUTION / PUBLIC SOURCE RECORD
ULSTEIN THOR ship design solves the zero-emission challenge
- Published 14 December 2022; updated 21 September 2026; estimated reading time 3 minutes. Explicitly marked “Soon available”; the page says the concept is not commercially available and Ulstein welcomes investor discussions.
- ULSTEIN THOR is a proposed mobile power vessel using a thorium-fuelled molten-salt reactor (MSR) to generate electricity for battery-powered cruise ships and other vessels. Its stated “3R” concept means Replenishment, Research and Rescue. The concept includes helicopter pads, rescue booms, autonomous surface vehicles, cranes, laboratories and a lecture/meeting lounge. The article says one THOR could recharge up to four vessels and would not need refuelling itself.
- Ulstein also developed ULSTEIN SIF as a zero-emission expedition-cruise concept intended to recharge from THOR at sea. Potential uses discussed include offshore power, research, rescue, ecotourism and leasing power/research facilities.
- The page presents thorium MSR technology as potentially safe, efficient, lower-cost and lower-impact, citing an NTNU professor. However, this is a proposed vessel concept using an onboard reactor, not a commercially available ship; the page gives no design validation, licensing status, reactor supplier/approval, safety case, cost model or deployment timeline. Claims about emissions-free operation depend on reactor design, fuel cycle, safety approvals and applicable maritime/nuclear rules, none of which are detailed here.
- Linked to SDGs 7 (Affordable and clean energy), 9 (Industry, innovation and infrastructure) and 11 (Sustainable cities and communities).
- Contact: Runar Muren, Managing Director, runar.muren@ulstein.com. Company: ULSTEIN DESIGN & SOLUTIONS AS, Osnesvegen 110, 6065 Ulsteinvik, Norway; ulstein.com. A phone-number reveal control is present.